944 files changed, 8497 insertions, 6668 deletions

diff --git a/files/ar/_redirects.txt b/files/ar/_redirects.txt
index fde7fd632d..093014aec1 100644
--- a/files/ar/_redirects.txt
+++ b/files/ar/_redirects.txt
@@ -1,32 +1,87 @@
 # FROM-URL	TO-URL
+/ar/docs/Glossary/الحروف	/ar/docs/Glossary/Character
+/ar/docs/Glossary/الخاصية	/ar/docs/Glossary/property
+/ar/docs/Glossary/الدوال_من_الدرجة_الأولى	/ar/docs/Glossary/First-class_Function
+/ar/docs/Glossary/الكائنات	/ar/docs/Glossary/Object
+/ar/docs/Glossary/المجالات	/ar/docs/Glossary/Scope
 /ar/docs/HTML	/ar/docs/Web/HTML
+/ar/docs/HTML/Element	/ar/docs/Web/HTML/Element
+/ar/docs/HTML/Element/article	/ar/docs/Web/HTML/Element/article
+/ar/docs/HTML/Element/bdo	/ar/docs/Web/HTML/Element/bdo
+/ar/docs/HTML/Element/headings_elements	/ar/docs/Web/HTML/Element/Heading_Elements
+/ar/docs/HTML/Element/span	/ar/docs/Web/HTML/Element/span
+/ar/docs/HTML/Element/tt	/ar/docs/Web/HTML/Element/tt
 /ar/docs/Learn/CSS/Introduction_to_CSS	/en-US/docs/Learn/CSS/First_steps
 /ar/docs/Learn/CSS/Introduction_to_CSS/How_CSS_works	/en-US/docs/Learn/CSS/First_steps/How_CSS_works
 /ar/docs/Learn/CSS/Introduction_to_CSS/Selectors	/en-US/docs/Learn/CSS/Building_blocks/Selectors
+/ar/docs/Learn/Common_questions/كيفية_عمل	/ar/docs/Learn/Common_questions/How_does_the_Internet_work
+/ar/docs/Learn/Getting_started_with_the_web/أساسيات_صفحات_الطرز_المتراصة	/ar/docs/Learn/Getting_started_with_the_web/CSS_basics
 /ar/docs/Learn/Getting_started_with_the_web/أساسيات_لغة_ترميز_النص_الفائق	/ar/docs/Learn/Getting_started_with_the_web/HTML_basics
 /ar/docs/Learn/Getting_started_with_the_web/التعامل_مع_الملفات	/ar/docs/Learn/Getting_started_with_the_web/Dealing_with_files
 /ar/docs/Learn/Getting_started_with_the_web/تثبيت_البرمجيات_الأساسية	/ar/docs/Learn/Getting_started_with_the_web/Installing_basic_software
 /ar/docs/Learn/Getting_started_with_the_web/كيف_يجب_أن_يبدو_موقعك	/ar/docs/Learn/Getting_started_with_the_web/What_will_your_website_look_like
+/ar/docs/Learn/HTML/Forms	/ar/docs/Learn/Forms
+/ar/docs/Learn/HTML/الجداول	/ar/docs/Learn/HTML/Tables
+/ar/docs/Learn/HTML/بسيطة_HTML_إنشاء_صفحة	/ar/docs/conflicting/Learn/Getting_started_with_the_web
 /ar/docs/Learn/HTML/مقدمة_إلى_لغة_ترميز_النص_الفائق	/ar/docs/Learn/HTML/Introduction_to_HTML
 /ar/docs/Learn/HTML/مقدمة_إلى_لغة_ترميز_النص_الفائق/Getting_started	/ar/docs/Learn/HTML/Introduction_to_HTML/Getting_started
 /ar/docs/Learn/HTML/مقدمة_إلى_لغة_ترميز_النص_الفائق/HTML_text_fundamentals	/ar/docs/Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals
+/ar/docs/Learn/How_to_contribute	/ar/docs/orphaned/Learn/How_to_contribute
+/ar/docs/MDN/Community	/ar/docs/orphaned/MDN/Community
+/ar/docs/MDN/Community/Whats_happening	/ar/docs/orphaned/MDN/Community/Whats_happening
 /ar/docs/MDN/Contribute/Guidelines	/ar/docs/MDN/Guidelines
 /ar/docs/MDN/Contribute/Guidelines/Writing_style_guide	/ar/docs/MDN/Guidelines/Writing_style_guide
+/ar/docs/MDN/Contribute/Howto/Do_a_technical_review	/ar/docs/orphaned/MDN/Contribute/Howto/Do_a_technical_review
+/ar/docs/MDN/Contribute/Howto/Do_an_editorial_review	/ar/docs/orphaned/MDN/Contribute/Howto/Do_an_editorial_review
+/ar/docs/MDN/Contribute/Howto/Set_the_summary_for_a_page	/ar/docs/orphaned/MDN/Contribute/Howto/Set_the_summary_for_a_page
+/ar/docs/MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web	/ar/docs/orphaned/MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web
+/ar/docs/MDN/Contribute/Howto/إنشاء_حساب_على_شبكة_مطوري_موزيلا	/ar/docs/orphaned/MDN/Contribute/Howto/Create_an_MDN_account
+/ar/docs/MDN/Contribute/Howto/كيفية_إنشاء_وتحرير_الصفحات	/ar/docs/MDN/Contribute/Howto/Create_and_edit_pages
 /ar/docs/MDN/Contribute/Tools	/ar/docs/MDN/Tools
-/ar/docs/MDN/Contribute/Tools/Deleting_pages	/ar/docs/MDN/Tools/Deleting_pages
+/ar/docs/MDN/Contribute/Tools/Deleting_pages	/ar/docs/orphaned/MDN/Tools/Page_deletion
 /ar/docs/MDN/Feedback	/ar/docs/MDN/Contribute/Feedback
 /ar/docs/MDN/Getting_started	/ar/docs/MDN/Contribute/Getting_started
+/ar/docs/MDN/Kuma	/ar/docs/MDN/Yari
+/ar/docs/MDN/Tools/Deleting_pages	/ar/docs/orphaned/MDN/Tools/Page_deletion
 /ar/docs/MDN/User_guide	/ar/docs/MDN/Tools
-/ar/docs/MDN/User_guide/Deleting_pages	/ar/docs/MDN/Tools/Deleting_pages
+/ar/docs/MDN/User_guide/Deleting_pages	/ar/docs/orphaned/MDN/Tools/Page_deletion
+/ar/docs/MDN_at_ten	/ar/docs/MDN/At_ten
+/ar/docs/Mozilla/Add-ons/WebExtensions/ما_هي_امتدادات_الويب	/ar/docs/Mozilla/Add-ons/WebExtensions/What_are_WebExtensions
+/ar/docs/Web/API/Geolocation/Using_geolocation	/ar/docs/Web/API/Geolocation_API
+/ar/docs/Web/API/Geolocation/Using_geolocation/Using_the_Geolocation_API	/ar/docs/Web/API/Geolocation_API/Using_the_Geolocation_API
 /ar/docs/Web/API/HTMLElement.contentEditable	/ar/docs/Web/API/HTMLElement/contentEditable
+/ar/docs/Web/API/History_API/مثال	/ar/docs/Web/API/History_API/Example
+/ar/docs/Web/API/Navigator.battery	/ar/docs/Web/API/Navigator/battery
+/ar/docs/Web/CSS/CSS_Flexible_Box_Layout/المفاهيم_الأساسية_للصندوق_المرن	/ar/docs/Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
+/ar/docs/Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout_arabic	/ar/docs/Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout
+/ar/docs/Web/CSS/التحول	/ar/docs/Web/CSS/transform
+/ar/docs/Web/CSS/التعليقات	/ar/docs/Web/CSS/Comments
+/ar/docs/Web/CSS/العناصر_التي_يمكن_تحريكها_باستخدام_CSS_Transitions	/ar/docs/Web/CSS/CSS_animated_properties
+/ar/docs/Web/Guide/CSS	/ar/docs/conflicting/Learn/CSS
+/ar/docs/Web/Guide/CSS/Getting_started	/ar/docs/conflicting/Learn/CSS/First_steps
+/ar/docs/Web/Guide/CSS/Getting_started/Readable_CSS	/ar/docs/Learn/CSS/First_steps/How_CSS_is_structured
+/ar/docs/Web/Guide/CSS/Getting_started/القوائم	/ar/docs/Learn/CSS/Styling_text/Styling_lists
 /ar/docs/Web/Guide/HTML	/ar/docs/Learn/HTML
+/ar/docs/Web/Guide/HTML/HTML5/HTML5_element_list	/ar/docs/conflicting/Web/HTML/Element
 /ar/docs/Web/Guide/HTML/مقدمة	/ar/docs/Learn/HTML/Introduction_to_HTML
-/ar/docs/Web/HTML/Element	/ar/docs/HTML/Element
-/ar/docs/Web/HTML/Element/bdo	/ar/docs/HTML/Element/bdo
-/ar/docs/Web/HTML/Element/headings_elements	/ar/docs/HTML/Element/headings_elements
-/ar/docs/Web/HTML/Element/span	/ar/docs/HTML/Element/span
-/ar/docs/Web/HTML/Element/tt	/ar/docs/HTML/Element/tt
+/ar/docs/Web/Guide/الرسومات	/ar/docs/Web/Guide/Graphics
+/ar/docs/Web/HTML/Element/headings_elements	/ar/docs/Web/HTML/Element/Heading_Elements
+/ar/docs/Web/HTML_لغة_ترميز_النص_الفائق	/ar/docs/conflicting/Web/HTML
 /ar/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Complete_list_of_MIME_types	/ar/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
+/ar/docs/Web/JavaScript/Guide/الدوال	/ar/docs/Web/JavaScript/Guide/Functions
+/ar/docs/Web/JavaScript/Introduction_to_Object-Oriented_JavaScript	/ar/docs/conflicting/Learn/JavaScript/Objects
+/ar/docs/Web/JavaScript/Reference/Global_Objects/الارقام	/ar/docs/Web/JavaScript/Reference/Global_Objects/Number
 /ar/docs/Web/JavaScript/Reference/Global_Objects/رياضيات	/ar/docs/Web/JavaScript/Reference/Global_Objects/Math
+/ar/docs/Web/JavaScript/Reference/الدوال	/ar/docs/Web/JavaScript/Reference/Functions
+/ar/docs/Web/JavaScript/Reference/الدوال/get	/ar/docs/Web/JavaScript/Reference/Functions/get
+/ar/docs/Web/حماية	/ar/docs/Web/Security
 /ar/docs/Web/دروس	/ar/docs/Web/Tutorials
+/ar/docs/Web/مرجع.	/ar/docs/Web/Reference
+/ar/docs/Web_Development	/ar/docs/conflicting/Web/Guide
+/ar/docs/Web_Development/Mobile	/ar/docs/Web/Guide/Mobile
 /ar/docs/en	/en-US/
+/ar/docs/heesfoord007	/ar/docs/orphaned/heesfoord007
+/ar/docs/أحداث_مكتبة_jQuery	/ar/docs/orphaned/أحداث_مكتبة_jQuery
+/ar/docs/مكتبة_جي_كويري	/ar/docs/orphaned/مكتبة_جي_كويري
+/ar/docs/واصفة_SpellCheck_الجديدة_في_HTML5	/ar/docs/orphaned/واصفة_SpellCheck_الجديدة_في_HTML5
+/ar/docs/واصفة_العنوان_في_HTML	/ar/docs/orphaned/واصفة_العنوان_في_HTML
diff --git a/files/ar/_wikihistory.json b/files/ar/_wikihistory.json
index 520f904f68..6e2ca1f741 100644
--- a/files/ar/_wikihistory.json
+++ b/files/ar/_wikihistory.json
@@ -276,82 +276,6 @@
       "ahmadnourallah"
     ]
   },
-  "Glossary/الحروف": {
-    "modified": "2019-03-18T20:41:14.582Z",
-    "contributors": [
-      "moussagigawatt"
-    ]
-  },
-  "Glossary/الخاصية": {
-    "modified": "2019-03-18T20:41:18.902Z",
-    "contributors": [
-      "moussagigawatt"
-    ]
-  },
-  "Glossary/الدوال_من_الدرجة_الأولى": {
-    "modified": "2019-03-18T21:43:51.692Z",
-    "contributors": [
-      "ahmadnourallah"
-    ]
-  },
-  "Glossary/الكائنات": {
-    "modified": "2019-03-18T21:23:58.693Z",
-    "contributors": [
-      "ahmadnourallah",
-      "yagoub76"
-    ]
-  },
-  "Glossary/المجالات": {
-    "modified": "2019-03-18T20:58:54.465Z",
-    "contributors": [
-      "laloshify"
-    ]
-  },
-  "HTML/Element": {
-    "modified": "2019-09-11T08:42:21.522Z",
-    "contributors": [
-      "SphinxKnight",
-      "moaz_osama_okasha",
-      "elzoz531",
-      "teoli",
-      "HelmiHB"
-    ]
-  },
-  "HTML/Element/article": {
-    "modified": "2020-10-15T22:31:03.274Z",
-    "contributors": [
-      "M.M.J",
-      "a01273477051"
-    ]
-  },
-  "HTML/Element/bdo": {
-    "modified": "2020-10-15T22:02:29.578Z",
-    "contributors": [
-      "SphinxKnight",
-      "zidanlab"
-    ]
-  },
-  "HTML/Element/headings_elements": {
-    "modified": "2020-10-15T22:08:39.845Z",
-    "contributors": [
-      "SphinxKnight",
-      "Alhakem"
-    ]
-  },
-  "HTML/Element/span": {
-    "modified": "2020-10-15T22:05:54.978Z",
-    "contributors": [
-      "SphinxKnight",
-      "moaz_osama_okasha"
-    ]
-  },
-  "HTML/Element/tt": {
-    "modified": "2020-10-15T22:05:53.553Z",
-    "contributors": [
-      "SphinxKnight",
-      "moaz_osama_okasha"
-    ]
-  },
   "Learn": {
     "modified": "2020-07-16T22:43:37.457Z",
     "contributors": [
@@ -429,13 +353,6 @@
       "ahmadnourallah"
     ]
   },
-  "Learn/Common_questions/كيفية_عمل": {
-    "modified": "2020-09-14T10:55:57.301Z",
-    "contributors": [
-      "hichamikka",
-      "mestoo"
-    ]
-  },
   "Learn/Front-end_web_developer": {
     "modified": "2020-12-09T17:02:05.907Z",
     "contributors": [
@@ -499,14 +416,6 @@
       "jwhitlock"
     ]
   },
-  "Learn/Getting_started_with_the_web/أساسيات_صفحات_الطرز_المتراصة": {
-    "modified": "2020-07-16T22:34:55.259Z",
-    "contributors": [
-      "aminezouhair",
-      "sami-assasa",
-      "ahmadnourallah"
-    ]
-  },
   "Learn/HTML": {
     "modified": "2020-07-16T22:22:14.487Z",
     "contributors": [
@@ -516,12 +425,6 @@
       "Andrew_Pfeiffer"
     ]
   },
-  "Learn/HTML/Forms": {
-    "modified": "2020-12-06T05:54:22.728Z",
-    "contributors": [
-      "coderclouds2018"
-    ]
-  },
   "Learn/HTML/Introduction_to_HTML": {
     "modified": "2020-07-16T22:22:44.780Z",
     "contributors": [
@@ -552,27 +455,6 @@
       "ezrinjaz"
     ]
   },
-  "Learn/HTML/الجداول": {
-    "modified": "2020-07-16T22:25:09.678Z",
-    "contributors": [
-      "aminezouhair"
-    ]
-  },
-  "Learn/HTML/بسيطة_HTML_إنشاء_صفحة": {
-    "modified": "2020-07-16T22:22:26.344Z",
-    "contributors": [
-      "wbamberg",
-      "mubarak823",
-      "mhmdiaa"
-    ]
-  },
-  "Learn/How_to_contribute": {
-    "modified": "2020-07-16T22:33:42.427Z",
-    "contributors": [
-      "SphinxKnight",
-      "ahmadnourallah"
-    ]
-  },
   "Learn/JavaScript": {
     "modified": "2020-07-16T22:29:36.627Z",
     "contributors": [
@@ -682,21 +564,6 @@
       "ahmadnourallah"
     ]
   },
-  "MDN/Community": {
-    "modified": "2019-03-23T22:39:46.468Z",
-    "contributors": [
-      "wbamberg",
-      "ahmadnourallah",
-      "Jeremie",
-      "1071432726"
-    ]
-  },
-  "MDN/Community/Whats_happening": {
-    "modified": "2019-06-11T03:43:32.787Z",
-    "contributors": [
-      "aminezouhair"
-    ]
-  },
   "MDN/Contribute": {
     "modified": "2019-03-23T23:16:50.906Z",
     "contributors": [
@@ -735,20 +602,6 @@
       "Sheppy"
     ]
   },
-  "MDN/Contribute/Howto/Do_a_technical_review": {
-    "modified": "2019-06-10T14:47:38.844Z",
-    "contributors": [
-      "aminezouhair",
-      "wbamberg",
-      "ashqaljnoob"
-    ]
-  },
-  "MDN/Contribute/Howto/Do_an_editorial_review": {
-    "modified": "2019-06-15T16:26:58.954Z",
-    "contributors": [
-      "aminezouhair"
-    ]
-  },
   "MDN/Contribute/Howto/Report_a_problem": {
     "modified": "2020-01-07T12:21:22.751Z",
     "contributors": [
@@ -756,13 +609,6 @@
       "aminezouhair"
     ]
   },
-  "MDN/Contribute/Howto/Set_the_summary_for_a_page": {
-    "modified": "2020-02-14T19:30:29.921Z",
-    "contributors": [
-      "a0m0rajab",
-      "maherv"
-    ]
-  },
   "MDN/Contribute/Howto/Tag": {
     "modified": "2019-09-10T11:04:17.206Z",
     "contributors": [
@@ -776,28 +622,6 @@
       "aminezouhair"
     ]
   },
-  "MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web": {
-    "modified": "2020-02-28T22:26:02.885Z",
-    "contributors": [
-      "aminezouhair"
-    ]
-  },
-  "MDN/Contribute/Howto/إنشاء_حساب_على_شبكة_مطوري_موزيلا": {
-    "modified": "2019-06-11T03:35:08.931Z",
-    "contributors": [
-      "aminezouhair",
-      "wbamberg",
-      "ahmadnourallah",
-      "mhmdiaa",
-      "Syrian-Guy"
-    ]
-  },
-  "MDN/Contribute/Howto/كيفية_إنشاء_وتحرير_الصفحات": {
-    "modified": "2019-03-18T21:28:07.470Z",
-    "contributors": [
-      "AhmedElhatem"
-    ]
-  },
   "MDN/Guidelines": {
     "modified": "2020-09-30T15:27:52.369Z",
     "contributors": [
@@ -813,15 +637,6 @@
       "maherv"
     ]
   },
-  "MDN/Kuma": {
-    "modified": "2019-09-09T15:51:34.712Z",
-    "contributors": [
-      "SphinxKnight",
-      "wbamberg",
-      "ahmadnourallah",
-      "dr-m1991"
-    ]
-  },
   "MDN/Tools": {
     "modified": "2020-09-30T16:47:53.767Z",
     "contributors": [
@@ -831,22 +646,6 @@
       "Sheppy"
     ]
   },
-  "MDN/Tools/Deleting_pages": {
-    "modified": "2020-09-30T16:47:53.745Z",
-    "contributors": [
-      "chrisdavidmills",
-      "wbamberg",
-      "Jeremie",
-      "Bettr",
-      "iii59300"
-    ]
-  },
-  "MDN_at_ten": {
-    "modified": "2019-03-23T22:44:47.432Z",
-    "contributors": [
-      "M.IRAQY999"
-    ]
-  },
   "Mozilla": {
     "modified": "2019-03-23T23:28:10.569Z",
     "contributors": [
@@ -914,12 +713,6 @@
       "ralshammrei"
     ]
   },
-  "Mozilla/Add-ons/WebExtensions/ما_هي_امتدادات_الويب": {
-    "modified": "2020-01-01T17:57:33.756Z",
-    "contributors": [
-      "Anonymous"
-    ]
-  },
   "Mozilla/Developer_guide": {
     "modified": "2019-03-23T22:03:05.275Z",
     "contributors": [
@@ -1099,19 +892,6 @@
       "fscholz"
     ]
   },
-  "Web/API/Geolocation/Using_geolocation": {
-    "modified": "2019-08-31T16:04:10.213Z",
-    "contributors": [
-      "1043465747",
-      "elsisi"
-    ]
-  },
-  "Web/API/Geolocation/Using_geolocation/Using_the_Geolocation_API": {
-    "modified": "2020-03-22T20:37:24.802Z",
-    "contributors": [
-      "i7cn"
-    ]
-  },
   "Web/API/HTMLElement": {
     "modified": "2019-03-23T23:00:29.058Z",
     "contributors": [
@@ -1132,25 +912,12 @@
       "iJianHuang"
     ]
   },
-  "Web/API/History_API/مثال": {
-    "modified": "2019-03-23T22:22:46.391Z",
-    "contributors": [
-      "atefBB"
-    ]
-  },
   "Web/API/Navigator": {
     "modified": "2019-03-23T22:15:21.162Z",
     "contributors": [
       "Sheppy"
     ]
   },
-  "Web/API/Navigator.battery": {
-    "modified": "2019-03-23T23:12:40.096Z",
-    "contributors": [
-      "jsx",
-      "Syrian-Guy"
-    ]
-  },
   "Web/API/Node": {
     "modified": "2020-10-15T22:29:49.949Z",
     "contributors": [
@@ -1222,12 +989,6 @@
       "vnctdj"
     ]
   },
-  "Web/CSS/CSS_Flexible_Box_Layout/المفاهيم_الأساسية_للصندوق_المرن": {
-    "modified": "2020-03-28T05:18:29.446Z",
-    "contributors": [
-      "Mutazalhawash"
-    ]
-  },
   "Web/CSS/CSS_Grid_Layout": {
     "modified": "2019-03-18T21:35:22.946Z",
     "contributors": [
@@ -1235,12 +996,6 @@
       "rachelandrew"
     ]
   },
-  "Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout_arabic": {
-    "modified": "2019-03-18T21:35:18.134Z",
-    "contributors": [
-      "harchaoui"
-    ]
-  },
   "Web/CSS/CSS_Writing_Modes": {
     "modified": "2019-03-23T22:03:16.266Z",
     "contributors": [
@@ -1272,24 +1027,6 @@
       "AF555"
     ]
   },
-  "Web/CSS/التحول": {
-    "modified": "2020-10-15T22:06:18.420Z",
-    "contributors": [
-      "mohamadlounnas"
-    ]
-  },
-  "Web/CSS/التعليقات": {
-    "modified": "2019-03-23T22:09:00.996Z",
-    "contributors": [
-      "Abu3safeer"
-    ]
-  },
-  "Web/CSS/العناصر_التي_يمكن_تحريكها_باستخدام_CSS_Transitions": {
-    "modified": "2019-03-23T22:09:06.742Z",
-    "contributors": [
-      "Abu3safeer"
-    ]
-  },
   "Web/Events": {
     "modified": "2020-07-05T11:11:44.298Z",
     "contributors": [
@@ -1304,32 +1041,6 @@
       "Sheppy"
     ]
   },
-  "Web/Guide/CSS": {
-    "modified": "2019-03-23T23:26:10.869Z",
-    "contributors": [
-      "Sheppy"
-    ]
-  },
-  "Web/Guide/CSS/Getting_started": {
-    "modified": "2019-03-23T22:26:23.175Z",
-    "contributors": [
-      "wjinca"
-    ]
-  },
-  "Web/Guide/CSS/Getting_started/Readable_CSS": {
-    "modified": "2019-03-23T22:26:15.891Z",
-    "contributors": [
-      "atefBB",
-      "Muhnad"
-    ]
-  },
-  "Web/Guide/CSS/Getting_started/القوائم": {
-    "modified": "2019-03-23T22:26:05.454Z",
-    "contributors": [
-      "atefBB",
-      "EmanShaltoutTrend"
-    ]
-  },
   "Web/Guide/HTML/HTML5": {
     "modified": "2020-10-19T18:49:26.722Z",
     "contributors": [
@@ -1340,22 +1051,6 @@
       "John.Smith"
     ]
   },
-  "Web/Guide/HTML/HTML5/HTML5_element_list": {
-    "modified": "2019-03-23T23:14:56.560Z",
-    "contributors": [
-      "Abu3safeer",
-      "atefBB",
-      "mohamedmahmoud",
-      "teoli",
-      "Ali.Talib"
-    ]
-  },
-  "Web/Guide/الرسومات": {
-    "modified": "2019-03-18T21:43:50.204Z",
-    "contributors": [
-      "ahmadnourallah"
-    ]
-  },
   "Web/HTML": {
     "modified": "2019-09-11T08:59:54.831Z",
     "contributors": [
@@ -1374,15 +1069,6 @@
       "mhayajneh"
     ]
   },
-  "Web/HTML_لغة_ترميز_النص_الفائق": {
-    "modified": "2019-09-11T08:10:23.337Z",
-    "contributors": [
-      "SphinxKnight",
-      "aminezouhair",
-      "ahmadnourallah",
-      "antaraz"
-    ]
-  },
   "Web/HTTP": {
     "modified": "2019-12-23T16:16:43.680Z",
     "contributors": [
@@ -1507,21 +1193,6 @@
       "SphinxKnight"
     ]
   },
-  "Web/JavaScript/Guide/الدوال": {
-    "modified": "2020-03-12T19:44:03.918Z",
-    "contributors": [
-      "Youssef-Belmeskine",
-      "Benseidseid"
-    ]
-  },
-  "Web/JavaScript/Introduction_to_Object-Oriented_JavaScript": {
-    "modified": "2020-03-12T19:44:59.681Z",
-    "contributors": [
-      "HeSoKa05",
-      "Youssef-Belmeskine",
-      "mustafasalah"
-    ]
-  },
   "Web/JavaScript/Reference": {
     "modified": "2020-03-12T19:39:44.947Z",
     "contributors": [
@@ -1695,12 +1366,6 @@
       "Mourad_Ouchane"
     ]
   },
-  "Web/JavaScript/Reference/Global_Objects/الارقام": {
-    "modified": "2020-10-10T09:54:31.841Z",
-    "contributors": [
-      "Flemer"
-    ]
-  },
   "Web/JavaScript/Reference/Operators": {
     "modified": "2020-12-14T11:30:35.207Z",
     "contributors": [
@@ -1750,18 +1415,6 @@
       "skarfstri"
     ]
   },
-  "Web/JavaScript/Reference/الدوال": {
-    "modified": "2020-03-12T19:44:04.047Z",
-    "contributors": [
-      "Benseidseid"
-    ]
-  },
-  "Web/JavaScript/Reference/الدوال/get": {
-    "modified": "2020-10-15T22:32:22.148Z",
-    "contributors": [
-      "abdwfawzy985"
-    ]
-  },
   "Web/MathML": {
     "modified": "2019-03-23T22:01:47.703Z",
     "contributors": [
@@ -1790,61 +1443,408 @@
       "antaraz"
     ]
   },
-  "Web/حماية": {
-    "modified": "2019-09-10T16:31:27.104Z",
+  "Glossary/Character": {
+    "modified": "2019-03-18T20:41:14.582Z",
+    "contributors": [
+      "moussagigawatt"
+    ]
+  },
+  "Glossary/property": {
+    "modified": "2019-03-18T20:41:18.902Z",
+    "contributors": [
+      "moussagigawatt"
+    ]
+  },
+  "Glossary/First-class_Function": {
+    "modified": "2019-03-18T21:43:51.692Z",
+    "contributors": [
+      "ahmadnourallah"
+    ]
+  },
+  "Glossary/Object": {
+    "modified": "2019-03-18T21:23:58.693Z",
+    "contributors": [
+      "ahmadnourallah",
+      "yagoub76"
+    ]
+  },
+  "Glossary/Scope": {
+    "modified": "2019-03-18T20:58:54.465Z",
+    "contributors": [
+      "laloshify"
+    ]
+  },
+  "orphaned/heesfoord007": {
+    "modified": "2019-03-23T22:50:44.174Z",
+    "contributors": [
+      "heesfoord007"
+    ]
+  },
+  "Web/HTML/Element/article": {
+    "modified": "2020-10-15T22:31:03.274Z",
+    "contributors": [
+      "M.M.J",
+      "a01273477051"
+    ]
+  },
+  "Web/HTML/Element/bdo": {
+    "modified": "2020-10-15T22:02:29.578Z",
     "contributors": [
       "SphinxKnight",
+      "zidanlab"
+    ]
+  },
+  "Web/HTML/Element/Heading_Elements": {
+    "modified": "2020-10-15T22:08:39.845Z",
+    "contributors": [
+      "SphinxKnight",
+      "Alhakem"
+    ]
+  },
+  "Web/HTML/Element": {
+    "modified": "2019-09-11T08:42:21.522Z",
+    "contributors": [
+      "SphinxKnight",
+      "moaz_osama_okasha",
+      "elzoz531",
+      "teoli",
+      "HelmiHB"
+    ]
+  },
+  "Web/HTML/Element/span": {
+    "modified": "2020-10-15T22:05:54.978Z",
+    "contributors": [
+      "SphinxKnight",
+      "moaz_osama_okasha"
+    ]
+  },
+  "Web/HTML/Element/tt": {
+    "modified": "2020-10-15T22:05:53.553Z",
+    "contributors": [
+      "SphinxKnight",
+      "moaz_osama_okasha"
+    ]
+  },
+  "Learn/Common_questions/How_does_the_Internet_work": {
+    "modified": "2020-09-14T10:55:57.301Z",
+    "contributors": [
+      "hichamikka",
+      "mestoo"
+    ]
+  },
+  "Learn/Getting_started_with_the_web/CSS_basics": {
+    "modified": "2020-07-16T22:34:55.259Z",
+    "contributors": [
+      "aminezouhair",
+      "sami-assasa",
+      "ahmadnourallah"
+    ]
+  },
+  "orphaned/Learn/How_to_contribute": {
+    "modified": "2020-07-16T22:33:42.427Z",
+    "contributors": [
+      "SphinxKnight",
+      "ahmadnourallah"
+    ]
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+  "Learn/Forms": {
+    "modified": "2020-12-06T05:54:22.728Z",
+    "contributors": [
+      "coderclouds2018"
+    ]
+  },
+  "Learn/HTML/Tables": {
+    "modified": "2020-07-16T22:25:09.678Z",
+    "contributors": [
       "aminezouhair"
     ]
   },
-  "Web/مرجع.": {
-    "modified": "2020-09-14T07:03:21.633Z",
+  "MDN/At_ten": {
+    "modified": "2019-03-23T22:44:47.432Z",
     "contributors": [
-      "coderclouds2018",
-      "ashqaljnoob07",
+      "M.IRAQY999"
+    ]
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+    "modified": "2019-03-23T22:39:46.468Z",
+    "contributors": [
+      "wbamberg",
+      "ahmadnourallah",
+      "Jeremie",
+      "1071432726"
+    ]
+  },
+  "orphaned/MDN/Community/Whats_happening": {
+    "modified": "2019-06-11T03:43:32.787Z",
+    "contributors": [
+      "aminezouhair"
+    ]
+  },
+  "orphaned/MDN/Contribute/Howto/Do_a_technical_review": {
+    "modified": "2019-06-10T14:47:38.844Z",
+    "contributors": [
+      "aminezouhair",
+      "wbamberg",
+      "ashqaljnoob"
+    ]
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+    "modified": "2019-06-15T16:26:58.954Z",
+    "contributors": [
+      "aminezouhair"
+    ]
+  },
+  "orphaned/MDN/Contribute/Howto/Set_the_summary_for_a_page": {
+    "modified": "2020-02-14T19:30:29.921Z",
+    "contributors": [
+      "a0m0rajab",
+      "maherv"
+    ]
+  },
+  "orphaned/MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web": {
+    "modified": "2020-02-28T22:26:02.885Z",
+    "contributors": [
+      "aminezouhair"
+    ]
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+  "orphaned/MDN/Contribute/Howto/Create_an_MDN_account": {
+    "modified": "2019-06-11T03:35:08.931Z",
+    "contributors": [
+      "aminezouhair",
+      "wbamberg",
+      "ahmadnourallah",
+      "mhmdiaa",
       "Syrian-Guy"
     ]
   },
-  "Web_Development": {
-    "modified": "2019-03-23T23:25:33.143Z",
+  "MDN/Contribute/Howto/Create_and_edit_pages": {
+    "modified": "2019-03-18T21:28:07.470Z",
     "contributors": [
-      "ethertank"
+      "AhmedElhatem"
     ]
   },
-  "Web_Development/Mobile": {
-    "modified": "2019-03-23T23:25:26.627Z",
+  "MDN/Yari": {
+    "modified": "2019-09-09T15:51:34.712Z",
     "contributors": [
-      "BenB"
+      "SphinxKnight",
+      "wbamberg",
+      "ahmadnourallah",
+      "dr-m1991"
     ]
   },
-  "heesfoord007": {
-    "modified": "2019-03-23T22:50:44.174Z",
+  "orphaned/MDN/Tools/Page_deletion": {
+    "modified": "2020-09-30T16:47:53.745Z",
     "contributors": [
-      "heesfoord007"
+      "chrisdavidmills",
+      "wbamberg",
+      "Jeremie",
+      "Bettr",
+      "iii59300"
     ]
   },
-  "أحداث_مكتبة_jQuery": {
+  "Mozilla/Add-ons/WebExtensions/What_are_WebExtensions": {
+    "modified": "2020-01-01T17:57:33.756Z",
+    "contributors": [
+      "Anonymous"
+    ]
+  },
+  "Web/API/Geolocation_API": {
+    "modified": "2019-08-31T16:04:10.213Z",
+    "contributors": [
+      "1043465747",
+      "elsisi"
+    ]
+  },
+  "Web/API/Geolocation_API/Using_the_Geolocation_API": {
+    "modified": "2020-03-22T20:37:24.802Z",
+    "contributors": [
+      "i7cn"
+    ]
+  },
+  "Web/API/History_API/Example": {
+    "modified": "2019-03-23T22:22:46.391Z",
+    "contributors": [
+      "atefBB"
+    ]
+  },
+  "Web/API/Navigator/battery": {
+    "modified": "2019-03-23T23:12:40.096Z",
+    "contributors": [
+      "jsx",
+      "Syrian-Guy"
+    ]
+  },
+  "Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox": {
+    "modified": "2020-03-28T05:18:29.446Z",
+    "contributors": [
+      "Mutazalhawash"
+    ]
+  },
+  "Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout": {
+    "modified": "2019-03-18T21:35:18.134Z",
+    "contributors": [
+      "harchaoui"
+    ]
+  },
+  "Web/CSS/transform": {
+    "modified": "2020-10-15T22:06:18.420Z",
+    "contributors": [
+      "mohamadlounnas"
+    ]
+  },
+  "Web/CSS/Comments": {
+    "modified": "2019-03-23T22:09:00.996Z",
+    "contributors": [
+      "Abu3safeer"
+    ]
+  },
+  "Web/CSS/CSS_animated_properties": {
+    "modified": "2019-03-23T22:09:06.742Z",
+    "contributors": [
+      "Abu3safeer"
+    ]
+  },
+  "Web/Guide/Graphics": {
+    "modified": "2019-03-18T21:43:50.204Z",
+    "contributors": [
+      "ahmadnourallah"
+    ]
+  },
+  "conflicting/Web/HTML": {
+    "modified": "2019-09-11T08:10:23.337Z",
+    "contributors": [
+      "SphinxKnight",
+      "aminezouhair",
+      "ahmadnourallah",
+      "antaraz"
+    ]
+  },
+  "Web/JavaScript/Guide/Functions": {
+    "modified": "2020-03-12T19:44:03.918Z",
+    "contributors": [
+      "Youssef-Belmeskine",
+      "Benseidseid"
+    ]
+  },
+  "Web/JavaScript/Reference/Global_Objects/Number": {
+    "modified": "2020-10-10T09:54:31.841Z",
+    "contributors": [
+      "Flemer"
+    ]
+  },
+  "Web/JavaScript/Reference/Functions/get": {
+    "modified": "2020-10-15T22:32:22.148Z",
+    "contributors": [
+      "abdwfawzy985"
+    ]
+  },
+  "Web/JavaScript/Reference/Functions": {
+    "modified": "2020-03-12T19:44:04.047Z",
+    "contributors": [
+      "Benseidseid"
+    ]
+  },
+  "Web/Security": {
+    "modified": "2019-09-10T16:31:27.104Z",
+    "contributors": [
+      "SphinxKnight",
+      "aminezouhair"
+    ]
+  },
+  "Web/Reference": {
+    "modified": "2020-09-14T07:03:21.633Z",
+    "contributors": [
+      "coderclouds2018",
+      "ashqaljnoob07",
+      "Syrian-Guy"
+    ]
+  },
+  "orphaned/أحداث_مكتبة_jQuery": {
     "modified": "2019-03-23T23:08:54.898Z",
     "contributors": [
       "Syrian-Guy"
     ]
   },
-  "مكتبة_جي_كويري": {
+  "orphaned/مكتبة_جي_كويري": {
     "modified": "2019-03-23T23:08:46.056Z",
     "contributors": [
       "Syrian-Guy"
     ]
   },
-  "واصفة_SpellCheck_الجديدة_في_HTML5": {
+  "orphaned/واصفة_SpellCheck_الجديدة_في_HTML5": {
     "modified": "2019-03-23T23:11:43.327Z",
     "contributors": [
       "Syrian-Guy"
     ]
   },
-  "واصفة_العنوان_في_HTML": {
+  "orphaned/واصفة_العنوان_في_HTML": {
     "modified": "2019-03-23T23:11:41.974Z",
     "contributors": [
       "Syrian-Guy"
     ]
+  },
+  "conflicting/Learn/Getting_started_with_the_web": {
+    "modified": "2020-07-16T22:22:26.344Z",
+    "contributors": [
+      "wbamberg",
+      "mubarak823",
+      "mhmdiaa"
+    ]
+  },
+  "conflicting/Web/Guide": {
+    "modified": "2019-03-23T23:25:33.143Z",
+    "contributors": [
+      "ethertank"
+    ]
+  },
+  "Web/Guide/Mobile": {
+    "modified": "2019-03-23T23:25:26.627Z",
+    "contributors": [
+      "BenB"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps": {
+    "modified": "2019-03-23T22:26:23.175Z",
+    "contributors": [
+      "wjinca"
+    ]
+  },
+  "Learn/CSS/First_steps/How_CSS_is_structured": {
+    "modified": "2019-03-23T22:26:15.891Z",
+    "contributors": [
+      "atefBB",
+      "Muhnad"
+    ]
+  },
+  "Learn/CSS/Styling_text/Styling_lists": {
+    "modified": "2019-03-23T22:26:05.454Z",
+    "contributors": [
+      "atefBB",
+      "EmanShaltoutTrend"
+    ]
+  },
+  "conflicting/Learn/CSS": {
+    "modified": "2019-03-23T23:26:10.869Z",
+    "contributors": [
+      "Sheppy"
+    ]
+  },
+  "conflicting/Web/HTML/Element": {
+    "modified": "2019-03-23T23:14:56.560Z",
+    "contributors": [
+      "Abu3safeer",
+      "atefBB",
+      "mohamedmahmoud",
+      "teoli",
+      "Ali.Talib"
+    ]
+  },
+  "conflicting/Learn/JavaScript/Objects": {
+    "modified": "2020-03-12T19:44:59.681Z",
+    "contributors": [
+      "HeSoKa05",
+      "Youssef-Belmeskine",
+      "mustafasalah"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/ar/web/guide/css/getting_started/index.html b/files/ar/conflicting/learn/css/first_steps/index.html
index 2bfc5c76bb..523fc257b0 100644
--- a/files/ar/web/guide/css/getting_started/index.html
+++ b/files/ar/conflicting/learn/css/first_steps/index.html
@@ -1,10 +1,10 @@
 ---
 title: Getting started with CSS
-slug: Web/Guide/CSS/Getting_started
+slug: conflicting/Learn/CSS/First_steps
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - Needs
   - NeedsBeginnerUpdate
@@ -14,6 +14,7 @@ tags:
   - Web
 translation_of: Learn/CSS/First_steps
 translation_of_original: Web/Guide/CSS/Getting_started
+original_slug: Web/Guide/CSS/Getting_started
 ---
 <p><span class="seoSummary">This tutorial introduces you to the basic features and language (the syntax) for <a href="/en-US/docs/Web/Guide/CSS" title="/en-US/docs/Web/Guide/CSS"><strong>Cascading Style Sheets</strong></a> (CSS). You use CSS to change the look of a structured document, such as a web page. The tutorial also includes sample exercises you can try on your own computer to see the effects of CSS and features that work in modern browsers. </span></p>
 <p>The tutorial is for beginners and anyone who would like to review the basics of CSS. If you have more experience with CSS, the CSS main page <a href="/en-US/docs/Web/Guide/CSS" title="/en-US/docs/Web/Guide/CSS">lists</a> more advanced resources.</p>
diff --git a/files/ar/web/guide/css/index.html b/files/ar/conflicting/learn/css/index.html
index 2bd34295c7..134aff0622 100644
--- a/files/ar/web/guide/css/index.html
+++ b/files/ar/conflicting/learn/css/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS developer guide
-slug: Web/Guide/CSS
+slug: conflicting/Learn/CSS
 tags:
   - CSS
   - Guide
@@ -9,6 +9,7 @@ tags:
   - TopicStub
 translation_of: Learn/CSS
 translation_of_original: Web/Guide/CSS
+original_slug: Web/Guide/CSS
 ---
 <p>{{draft}}</p>
 <p><span class="seoSummary">Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in HTML</span> or other markup languages such as SVG<span class="seoSummary">. CSS describes how the structured elements in the document are to be rendered on screen, on paper, in speech, or on other media.</span> The ability to adjust the document's presentation depending on the output medium is a key feature of CSS.</p>
diff --git a/files/ar/learn/html/بسيطة_html_إنشاء_صفحة/index.html b/files/ar/conflicting/learn/getting_started_with_the_web/index.html
index a6cdfdf6cf..a35f58deb0 100644
--- a/files/ar/learn/html/بسيطة_html_إنشاء_صفحة/index.html
+++ b/files/ar/conflicting/learn/getting_started_with_the_web/index.html
@@ -1,10 +1,11 @@
 ---
 title: إنشاء صفحة HTML بسيطة
-slug: Learn/HTML/بسيطة_HTML_إنشاء_صفحة
+slug: conflicting/Learn/Getting_started_with_the_web
 tags:
   - البداية
 translation_of: Learn/Getting_started_with_the_web
 translation_of_original: Learn/HTML/Write_a_simple_page_in_HTML
+original_slug: Learn/HTML/بسيطة_HTML_إنشاء_صفحة
 ---
 <div class="summary">
 <p>فى هذا المقال سوف تتعلم كيق تنشئ صفحة ويب بسيطة باستخدام {{Glossary("HTML")}}</p>
diff --git a/files/ar/web/javascript/introduction_to_object-oriented_javascript/index.html b/files/ar/conflicting/learn/javascript/objects/index.html
index 65ce0c788a..74c5fd84fb 100644
--- a/files/ar/web/javascript/introduction_to_object-oriented_javascript/index.html
+++ b/files/ar/conflicting/learn/javascript/objects/index.html
@@ -1,6 +1,6 @@
 ---
 title: مدخل إلى جافاسكريبت كائنية التوجه
-slug: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
+slug: conflicting/Learn/JavaScript/Objects
 tags:
   - الأفراد
   - البرمجة الكائنية
@@ -13,6 +13,7 @@ tags:
   - كائن
 translation_of: Learn/JavaScript/Objects
 translation_of_original: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
+original_slug: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
 ---
 <div>{{jsSidebar("Introductory")}}</div>
 
diff --git a/files/ar/web_development/index.html b/files/ar/conflicting/web/guide/index.html
index 051accb9a5..d85901e920 100644
--- a/files/ar/web_development/index.html
+++ b/files/ar/conflicting/web/guide/index.html
@@ -1,12 +1,13 @@
 ---
 title: Web Development
-slug: Web_Development
+slug: conflicting/Web/Guide
 tags:
   - NeedsTranslation
   - TopicStub
   - Web Development
 translation_of: Web/Guide
 translation_of_original: Web_Development
+original_slug: Web_Development
 ---
 <p><strong>Web development</strong> comprises all aspects of developing a web site or web application.</p>
 <p>Learn how to create anything from a simple web site to complex, highly interactive web sites featuring the latest Web technologies by perusing the articles you'll find here.</p>
diff --git a/files/ar/web/guide/html/html5/html5_element_list/index.html b/files/ar/conflicting/web/html/element/index.html
index 4c2a85ac03..3cccb98dbd 100644
--- a/files/ar/web/guide/html/html5/html5_element_list/index.html
+++ b/files/ar/conflicting/web/html/element/index.html
@@ -1,6 +1,6 @@
 ---
 title: مجموعه عناصر لغة HTML5
-slug: Web/Guide/HTML/HTML5/HTML5_element_list
+slug: conflicting/Web/HTML/Element
 tags:
   - اتش تي ام ال
   - اتش تي ام ال 5
@@ -11,6 +11,7 @@ tags:
   - وسوم
 translation_of: Web/HTML/Element
 translation_of_original: Web/Guide/HTML/HTML5/HTML5_element_list
+original_slug: Web/Guide/HTML/HTML5/HTML5_element_list
 ---
 <p dir="rtl">كل <strong>عناصر HTML5 المعتمدة</strong> مدرجة هنا، حيث أن اسماءها تصفها ومرتبة في مجموعات حسب وظائفها.</p>
 
diff --git a/files/ar/web/html_لغة_ترميز_النص_الفائق/index.html b/files/ar/conflicting/web/html/index.html
index b228c2f893..2a44ef2024 100644
--- a/files/ar/web/html_لغة_ترميز_النص_الفائق/index.html
+++ b/files/ar/conflicting/web/html/index.html
@@ -1,7 +1,8 @@
 ---
 title: HTML (لغة ترميز النص الفائق)
-slug: Web/HTML_لغة_ترميز_النص_الفائق
+slug: conflicting/Web/HTML
 translation_of: Web/HTML
+original_slug: Web/HTML_لغة_ترميز_النص_الفائق
 ---
 <div>{{HTMLSidebar}}</div>
 
diff --git a/files/ar/glossary/الحروف/index.html b/files/ar/glossary/character/index.html
index 47443563a1..d691ce44ce 100644
--- a/files/ar/glossary/الحروف/index.html
+++ b/files/ar/glossary/character/index.html
@@ -1,7 +1,8 @@
 ---
 title: الحروف
-slug: Glossary/الحروف
+slug: Glossary/Character
 translation_of: Glossary/Character
+original_slug: Glossary/الحروف
 ---
 <p dir="rtl">الحرف هي إما "رمز" (حروف ، أرقام ، علامات ترقيم) أو "تحكم" غير طباعي (على سبيل المثال ، رمز الإرجاع أوخطّ وصل).</p>
 
diff --git a/files/ar/glossary/الدوال_من_الدرجة_الأولى/index.html b/files/ar/glossary/first-class_function/index.html
index 405e49ea6b..83e098f519 100644
--- a/files/ar/glossary/الدوال_من_الدرجة_الأولى/index.html
+++ b/files/ar/glossary/first-class_function/index.html
@@ -1,7 +1,8 @@
 ---
 title: الدوال من الدرجة الأولى
-slug: Glossary/الدوال_من_الدرجة_الأولى
+slug: Glossary/First-class_Function
 translation_of: Glossary/First-class_Function
+original_slug: Glossary/الدوال_من_الدرجة_الأولى
 ---
 <p dir="rtl">يقال عن لغة البرمجة أنها تملك <strong>دوال من الدرجة الأولى</strong> عندما تعامل هذه الدوال في تلك اللغة كأي متغير أخر. على سبيل المثال، في تلك اللغات، يمكن أن تمرر الدالة كمعامل لدالة أخرى، ويمكن أن يتم إرجاعها من قبل دالة أخرى، ويمكن تعيينها كقيمة لمتغير.</p>
 
diff --git a/files/ar/glossary/الكائنات/index.html b/files/ar/glossary/object/index.html
index 01f15f9478..fad54c1142 100644
--- a/files/ar/glossary/الكائنات/index.html
+++ b/files/ar/glossary/object/index.html
@@ -1,10 +1,11 @@
 ---
 title: كائن
-slug: Glossary/الكائنات
+slug: Glossary/Object
 tags:
   - كائن
   - مسرد
 translation_of: Glossary/Object
+original_slug: Glossary/الكائنات
 ---
 <p><strong>الكائِن</strong> (بالإنجليزيَّة: Object) يشير إلى هيكل بيانات يحوي بيانات وتعليمات للتعامل مع البيانات. تُشير الكائِنات أحيانًا إلى أشياء حقيقيَّة، كالكائِن <code>car</code> أو <code>map</code> المُعرَّف في لعبة سباق. تُعد لغة {{glossary("JavaScript", "الجافاسكربت")}} والجافا والسي++ وبايثون وروبي من الأمثلة على لغات {{glossary("OOP","البرمجة الكائنيَّة")}}.</p>
 
diff --git a/files/ar/glossary/الخاصية/index.html b/files/ar/glossary/property/index.html
index 3d197d0c39..7b4aa8c321 100644
--- a/files/ar/glossary/الخاصية/index.html
+++ b/files/ar/glossary/property/index.html
@@ -1,7 +1,8 @@
 ---
 title: الخاصية
-slug: Glossary/الخاصية
+slug: Glossary/property
 translation_of: Glossary/property
+original_slug: Glossary/الخاصية
 ---
 <p dir="rtl"><span class="tlid-translation translation"><span title="">يمكن أن يكون لمصطلح ال</span></span>خاصية<span class="tlid-translation translation"><span title=""> عدة معاني حسب السياق.</span> <span title="">قد يشير إلى:</span></span></p>
 
diff --git a/files/ar/glossary/المجالات/index.html b/files/ar/glossary/scope/index.html
index b2c80924a5..13d28ff8cc 100644
--- a/files/ar/glossary/المجالات/index.html
+++ b/files/ar/glossary/scope/index.html
@@ -1,7 +1,8 @@
 ---
 title: المجالات
-slug: Glossary/المجالات
+slug: Glossary/Scope
 translation_of: Glossary/Scope
+original_slug: Glossary/المجالات
 ---
 <p>تعبر عن سياق التنفيذ الحالي للبرنامج والذي يمكنك فيه الوصول لقيم المتغيرات والتوابع واستعمالها. فإذا تم البحث عن متغير او تابع خارج المجال (أو سياق التنفيذ) الحالي وتبين أنّه  غير موجود فلن تستطيع الوصول إليه واستعماله. وتتشكل هذه المجالات بشكل هرمي (أو دائري بشرط لايوجد دائرتين متقاطعتين وكل الدوائر محتواة في بعضها البعض) بحيث ان المجال الداخلي (أو الدائرة الداخلية) الابن يستطيع الوصول لمجال الأب (الدائرة التي تحتويه) ولكن العكس غير ممكن.</p>
 
diff --git a/files/ar/learn/common_questions/كيفية_عمل/index.html b/files/ar/learn/common_questions/how_does_the_internet_work/index.html
index 2a3cd7e46f..4fff1099e5 100644
--- a/files/ar/learn/common_questions/كيفية_عمل/index.html
+++ b/files/ar/learn/common_questions/how_does_the_internet_work/index.html
@@ -1,12 +1,13 @@
 ---
 title: كيف يعمل الإنترنت؟
-slug: Learn/Common_questions/كيفية_عمل
+slug: Learn/Common_questions/How_does_the_Internet_work
 tags:
   - الإنترنت
   - درس
   - دليل
   - مبتدأ
 translation_of: Learn/Common_questions/How_does_the_Internet_work
+original_slug: Learn/Common_questions/كيفية_عمل
 ---
 <blockquote>
 <div>{{LearnSidebar}}</div>
diff --git a/files/ar/web/guide/css/getting_started/readable_css/index.html b/files/ar/learn/css/first_steps/how_css_is_structured/index.html
index f65331a2bd..53b455f460 100644
--- a/files/ar/web/guide/css/getting_started/readable_css/index.html
+++ b/files/ar/learn/css/first_steps/how_css_is_structured/index.html
@@ -1,8 +1,9 @@
 ---
 title: Readable CSS
-slug: Web/Guide/CSS/Getting_started/Readable_CSS
+slug: Learn/CSS/First_steps/How_CSS_is_structured
 translation_of: Learn/CSS/Introduction_to_CSS/Syntax#Beyond_syntax_make_CSS_readable
 translation_of_original: Web/Guide/CSS/Getting_started/Readable_CSS
+original_slug: Web/Guide/CSS/Getting_started/Readable_CSS
 ---
 <p dir="rtl">{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ar/web/guide/css/getting_started/القوائم/index.html b/files/ar/learn/css/styling_text/styling_lists/index.html
index 2b7fdeb726..aedafbd023 100644
--- a/files/ar/web/guide/css/getting_started/القوائم/index.html
+++ b/files/ar/learn/css/styling_text/styling_lists/index.html
@@ -1,8 +1,9 @@
 ---
 title: القوائم
-slug: Web/Guide/CSS/Getting_started/القوائم
+slug: Learn/CSS/Styling_text/Styling_lists
 translation_of: Learn/CSS/Styling_text/Styling_lists
 translation_of_original: Web/Guide/CSS/Getting_started/Lists
+original_slug: Web/Guide/CSS/Getting_started/القوائم
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ar/learn/html/forms/index.html b/files/ar/learn/forms/index.html
index 3c8f449476..ab44f3ea1f 100644
--- a/files/ar/learn/html/forms/index.html
+++ b/files/ar/learn/forms/index.html
@@ -1,6 +1,6 @@
 ---
 title: نماذج HTML
-slug: Learn/HTML/Forms
+slug: Learn/Forms
 tags:
   - Beginner
   - Featured
@@ -13,6 +13,7 @@ tags:
   - TopicStub
   - Web
 translation_of: Learn/Forms
+original_slug: Learn/HTML/Forms
 ---
 <div style="direction: rtl;">{{LearnSidebar}}</div>
 
diff --git a/files/ar/learn/getting_started_with_the_web/أساسيات_صفحات_الطرز_المتراصة/index.html b/files/ar/learn/getting_started_with_the_web/css_basics/index.html
index 70be221b32..e66e1abb24 100644
--- a/files/ar/learn/getting_started_with_the_web/أساسيات_صفحات_الطرز_المتراصة/index.html
+++ b/files/ar/learn/getting_started_with_the_web/css_basics/index.html
@@ -1,6 +1,6 @@
 ---
 title: أساسيات الـ CSS
-slug: Learn/Getting_started_with_the_web/أساسيات_صفحات_الطرز_المتراصة
+slug: Learn/Getting_started_with_the_web/CSS_basics
 tags:
   - CSS
   - تصميم
@@ -8,6 +8,7 @@ tags:
   - مبتدأ
   - ويب
 translation_of: Learn/Getting_started_with_the_web/CSS_basics
+original_slug: Learn/Getting_started_with_the_web/أساسيات_صفحات_الطرز_المتراصة
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ar/learn/html/الجداول/index.html b/files/ar/learn/html/tables/index.html
index 380e837a80..de12a6ae1a 100644
--- a/files/ar/learn/html/الجداول/index.html
+++ b/files/ar/learn/html/tables/index.html
@@ -1,7 +1,8 @@
 ---
 title: جداول HTML
-slug: Learn/HTML/الجداول
+slug: Learn/HTML/Tables
 translation_of: Learn/HTML/Tables
+original_slug: Learn/HTML/الجداول
 ---
 <div dir="rtl">{{LearnSidebar}}</div>
 
diff --git a/files/ar/mdn_at_ten/index.html b/files/ar/mdn/at_ten/index.html
index 1df4f8a024..e467484b96 100644
--- a/files/ar/mdn_at_ten/index.html
+++ b/files/ar/mdn/at_ten/index.html
@@ -1,7 +1,8 @@
 ---
 title: MDN at 10
-slug: MDN_at_ten
+slug: MDN/At_ten
 translation_of: MDN_at_ten
+original_slug: MDN_at_ten
 ---
 <p class="hidden"><span class="seoSummary">Celebrate 10 years of documenting your Web.</span></p>
 
diff --git a/files/ar/mdn/contribute/howto/كيفية_إنشاء_وتحرير_الصفحات/index.html b/files/ar/mdn/contribute/howto/create_and_edit_pages/index.html
index c4ab1b2bcf..f7f9f136b8 100644
--- a/files/ar/mdn/contribute/howto/كيفية_إنشاء_وتحرير_الصفحات/index.html
+++ b/files/ar/mdn/contribute/howto/create_and_edit_pages/index.html
@@ -1,7 +1,8 @@
 ---
 title: كيفية إنشاء وتحرير الصفحات
-slug: MDN/Contribute/Howto/كيفية_إنشاء_وتحرير_الصفحات
+slug: MDN/Contribute/Howto/Create_and_edit_pages
 translation_of: MDN/Contribute/Howto/Create_and_edit_pages
+original_slug: MDN/Contribute/Howto/كيفية_إنشاء_وتحرير_الصفحات
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/kuma/index.html b/files/ar/mdn/yari/index.html
index 8ab5de16e5..4f62570731 100644
--- a/files/ar/mdn/kuma/index.html
+++ b/files/ar/mdn/yari/index.html
@@ -1,10 +1,11 @@
 ---
 title: برمجية الموسوعة كوما
-slug: MDN/Kuma
+slug: MDN/Yari
 tags:
   - صفحة هبوط
   - معلومات عن الشبكة
 translation_of: MDN/Kuma
+original_slug: MDN/Kuma
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mozilla/add-ons/webextensions/ما_هي_امتدادات_الويب/index.html b/files/ar/mozilla/add-ons/webextensions/what_are_webextensions/index.html
index b407fc48a7..e5a17da914 100644
--- a/files/ar/mozilla/add-ons/webextensions/ما_هي_امتدادات_الويب/index.html
+++ b/files/ar/mozilla/add-ons/webextensions/what_are_webextensions/index.html
@@ -1,7 +1,8 @@
 ---
 title: ما هي الامتدادات؟
-slug: Mozilla/Add-ons/WebExtensions/ما_هي_امتدادات_الويب
+slug: Mozilla/Add-ons/WebExtensions/What_are_WebExtensions
 translation_of: Mozilla/Add-ons/WebExtensions/What_are_WebExtensions
+original_slug: Mozilla/Add-ons/WebExtensions/ما_هي_امتدادات_الويب
 ---
 <div>{{AddonSidebar}}</div>
 
diff --git a/files/ar/heesfoord007/index.html b/files/ar/orphaned/heesfoord007/index.html
index 18fb17ee5d..f79e7c1a1b 100644
--- a/files/ar/heesfoord007/index.html
+++ b/files/ar/orphaned/heesfoord007/index.html
@@ -1,11 +1,12 @@
 ---
 title: heesfoord007
-slug: heesfoord007
+slug: orphaned/heesfoord007
 tags:
   - Landing
   - NeedsTranslation
   - TopicStub
   - Web
+original_slug: heesfoord007
 ---
 <pre>The open Web presents incredible opportunities for developers. To take full advantage of these technologies, you need to know how to use them. Below you'll find links to our Web technology documentation.</pre>
 
diff --git a/files/ar/learn/how_to_contribute/index.html b/files/ar/orphaned/learn/how_to_contribute/index.html
index e53fb8f34f..c1efde80b2 100644
--- a/files/ar/learn/how_to_contribute/index.html
+++ b/files/ar/orphaned/learn/how_to_contribute/index.html
@@ -1,12 +1,13 @@
 ---
 title: كيف تساهم في قسم التعلم في الشبكة
-slug: Learn/How_to_contribute
+slug: orphaned/Learn/How_to_contribute
 tags:
   - توثيق
   - دليل
   - ساهم
   - مبتدئين
 translation_of: Learn/How_to_contribute
+original_slug: Learn/How_to_contribute
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ar/mdn/community/index.html b/files/ar/orphaned/mdn/community/index.html
index 5870ddd218..01a5b68eb5 100644
--- a/files/ar/mdn/community/index.html
+++ b/files/ar/orphaned/mdn/community/index.html
@@ -1,9 +1,10 @@
 ---
 title: انضم إلى مجتمع شبكة مطوري موزيلا
-slug: MDN/Community
+slug: orphaned/MDN/Community
 tags:
   - حول الشبكة
 translation_of: MDN/Community
+original_slug: MDN/Community
 ---
 <div>{{MDNSidebar}}</div><div>{{IncludeSubNav("/ar/docs/MDN")}}</div>
 
diff --git a/files/ar/mdn/community/whats_happening/index.html b/files/ar/orphaned/mdn/community/whats_happening/index.html
index 818472e420..0f45cc3fc5 100644
--- a/files/ar/mdn/community/whats_happening/index.html
+++ b/files/ar/orphaned/mdn/community/whats_happening/index.html
@@ -1,7 +1,8 @@
 ---
 title: اتبع ما يحدث
-slug: MDN/Community/Whats_happening
+slug: orphaned/MDN/Community/Whats_happening
 translation_of: MDN/Community/Whats_happening
+original_slug: MDN/Community/Whats_happening
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/contribute/howto/إنشاء_حساب_على_شبكة_مطوري_موزيلا/index.html b/files/ar/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
index 5a0a255b5d..c6485726bc 100644
--- a/files/ar/mdn/contribute/howto/إنشاء_حساب_على_شبكة_مطوري_موزيلا/index.html
+++ b/files/ar/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
@@ -1,11 +1,12 @@
 ---
 title: كيف تنشئ حساباً على شبكة MDN
-slug: MDN/Contribute/Howto/إنشاء_حساب_على_شبكة_مطوري_موزيلا
+slug: orphaned/MDN/Contribute/Howto/Create_an_MDN_account
 tags:
   - MDN Account
   - إنشاء حساب MDN
   - حساب MDN
 translation_of: MDN/Contribute/Howto/Create_an_MDN_account
+original_slug: MDN/Contribute/Howto/إنشاء_حساب_على_شبكة_مطوري_موزيلا
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/contribute/howto/do_a_technical_review/index.html b/files/ar/orphaned/mdn/contribute/howto/do_a_technical_review/index.html
index 72774721a9..97ac1b3478 100644
--- a/files/ar/mdn/contribute/howto/do_a_technical_review/index.html
+++ b/files/ar/orphaned/mdn/contribute/howto/do_a_technical_review/index.html
@@ -1,7 +1,8 @@
 ---
 title: كيفية القيام بمراجعة فنية
-slug: MDN/Contribute/Howto/Do_a_technical_review
+slug: orphaned/MDN/Contribute/Howto/Do_a_technical_review
 translation_of: MDN/Contribute/Howto/Do_a_technical_review
+original_slug: MDN/Contribute/Howto/Do_a_technical_review
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/contribute/howto/do_an_editorial_review/index.html b/files/ar/orphaned/mdn/contribute/howto/do_an_editorial_review/index.html
index 1ba5c000fd..71ece898d3 100644
--- a/files/ar/mdn/contribute/howto/do_an_editorial_review/index.html
+++ b/files/ar/orphaned/mdn/contribute/howto/do_an_editorial_review/index.html
@@ -1,7 +1,8 @@
 ---
 title: كيفية القيام بمراجعة تحريرية
-slug: MDN/Contribute/Howto/Do_an_editorial_review
+slug: orphaned/MDN/Contribute/Howto/Do_an_editorial_review
 translation_of: MDN/Contribute/Howto/Do_an_editorial_review
+original_slug: MDN/Contribute/Howto/Do_an_editorial_review
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/contribute/howto/set_the_summary_for_a_page/index.html b/files/ar/orphaned/mdn/contribute/howto/set_the_summary_for_a_page/index.html
index 7f1598cb01..13077abb15 100644
--- a/files/ar/mdn/contribute/howto/set_the_summary_for_a_page/index.html
+++ b/files/ar/orphaned/mdn/contribute/howto/set_the_summary_for_a_page/index.html
@@ -1,7 +1,8 @@
 ---
 title: How to set the summary for a page
-slug: MDN/Contribute/Howto/Set_the_summary_for_a_page
+slug: orphaned/MDN/Contribute/Howto/Set_the_summary_for_a_page
 translation_of: MDN/Contribute/Howto/Set_the_summary_for_a_page
+original_slug: MDN/Contribute/Howto/Set_the_summary_for_a_page
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/contribute/howto/write_an_article_to_help_learn_about_the_web/index.html b/files/ar/orphaned/mdn/contribute/howto/write_an_article_to_help_learn_about_the_web/index.html
index 1c993c9677..41f9945501 100644
--- a/files/ar/mdn/contribute/howto/write_an_article_to_help_learn_about_the_web/index.html
+++ b/files/ar/orphaned/mdn/contribute/howto/write_an_article_to_help_learn_about_the_web/index.html
@@ -1,7 +1,8 @@
 ---
 title: كيفية كتابة مقال لمساعدة الناس على التعرف على شبكة الإنترنت
-slug: MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web
+slug: orphaned/MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web
 translation_of: MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web
+original_slug: MDN/Contribute/Howto/Write_an_article_to_help_learn_about_the_Web
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ar/mdn/tools/deleting_pages/index.html b/files/ar/orphaned/mdn/tools/page_deletion/index.html
index 14b1632e0a..496ab17054 100644
--- a/files/ar/mdn/tools/deleting_pages/index.html
+++ b/files/ar/orphaned/mdn/tools/page_deletion/index.html
@@ -1,12 +1,13 @@
 ---
 title: Deleting pages
-slug: MDN/Tools/Deleting_pages
+slug: orphaned/MDN/Tools/Page_deletion
 tags:
   - Guide
   - MDN Meta
   - Page-level
   - Tools
 translation_of: MDN/Tools/Page_deletion
+original_slug: MDN/Tools/Deleting_pages
 ---
 <div>{{MDNSidebar}}</div><p>Only MDN administrators are able to delete pages. <span class="seoSummary">This article explains how to request that a page be removed from MDN.</span></p>
 
diff --git a/files/ar/أحداث_مكتبة_jquery/index.html b/files/ar/orphaned/أحداث_مكتبة_jquery/index.html
index bd2307f8ce..56ca59f3b5 100644
--- a/files/ar/أحداث_مكتبة_jquery/index.html
+++ b/files/ar/orphaned/أحداث_مكتبة_jquery/index.html
@@ -1,6 +1,7 @@
 ---
 title: أحداث مكتبة jQuery
-slug: أحداث_مكتبة_jQuery
+slug: orphaned/أحداث_مكتبة_jQuery
+original_slug: أحداث_مكتبة_jQuery
 ---
 <h1 id="تعريف">تعريف</h1>
 <p>أحداث مكتبة jQuery تقوم بربط الدوال مع عنصر معين.</p>
diff --git a/files/ar/مكتبة_جي_كويري/index.html b/files/ar/orphaned/مكتبة_جي_كويري/index.html
index 52d56021d4..45c02f275b 100644
--- a/files/ar/مكتبة_جي_كويري/index.html
+++ b/files/ar/orphaned/مكتبة_جي_كويري/index.html
@@ -1,6 +1,7 @@
 ---
 title: مكتبة jQuery
-slug: مكتبة_جي_كويري
+slug: orphaned/مكتبة_جي_كويري
+original_slug: مكتبة_جي_كويري
 ---
 <h2 id="مقدمة">مقدمة</h2>
 <p>jQuery هي عبارة عن مكتبة مكتوبة بلغة JavaScript.</p>
diff --git a/files/ar/واصفة_spellcheck_الجديدة_في_html5/index.html b/files/ar/orphaned/واصفة_spellcheck_الجديدة_في_html5/index.html
index 2e2626d616..b42e5e3135 100644
--- a/files/ar/واصفة_spellcheck_الجديدة_في_html5/index.html
+++ b/files/ar/orphaned/واصفة_spellcheck_الجديدة_في_html5/index.html
@@ -1,6 +1,7 @@
 ---
 title: واصفة SpellCheck الجديدة في HTML5
-slug: واصفة_SpellCheck_الجديدة_في_HTML5
+slug: orphaned/واصفة_SpellCheck_الجديدة_في_HTML5
+original_slug: واصفة_SpellCheck_الجديدة_في_HTML5
 ---
 <div dir="rtl">
  <h1 id="مقدمة.">مقدمة.</h1>
diff --git a/files/ar/واصفة_العنوان_في_html/index.html b/files/ar/orphaned/واصفة_العنوان_في_html/index.html
index 5e2d92d2a0..fbaf3bc33e 100644
--- a/files/ar/واصفة_العنوان_في_html/index.html
+++ b/files/ar/orphaned/واصفة_العنوان_في_html/index.html
@@ -1,6 +1,7 @@
 ---
 title: واصفة العنوان في HTML
-slug: واصفة_العنوان_في_HTML
+slug: orphaned/واصفة_العنوان_في_HTML
+original_slug: واصفة_العنوان_في_HTML
 ---
 <div dir="rtl">
  <h1 id="مقدمة.">مقدمة.</h1>
diff --git a/files/ar/web/api/geolocation/using_geolocation/index.html b/files/ar/web/api/geolocation_api/index.html
index a27275b2b5..74cf4c6caf 100644
--- a/files/ar/web/api/geolocation/using_geolocation/index.html
+++ b/files/ar/web/api/geolocation_api/index.html
@@ -1,7 +1,8 @@
 ---
 title: Using geolocation
-slug: Web/API/Geolocation/Using_geolocation
+slug: Web/API/Geolocation_API
 translation_of: Web/API/Geolocation_API
+original_slug: Web/API/Geolocation/Using_geolocation
 ---
 <p>The <strong>geolocation API</strong> allows the user to provide their location to web applications if they so desire. For privacy reasons, the user is asked for permission to report location information.</p>
 
diff --git a/files/ar/web/api/geolocation/using_geolocation/using_the_geolocation_api/index.html b/files/ar/web/api/geolocation_api/using_the_geolocation_api/index.html
index d696d6c9f2..86610979b0 100644
--- a/files/ar/web/api/geolocation/using_geolocation/using_the_geolocation_api/index.html
+++ b/files/ar/web/api/geolocation_api/using_the_geolocation_api/index.html
@@ -1,7 +1,8 @@
 ---
 title: Using the Geolocation API
-slug: Web/API/Geolocation/Using_geolocation/Using_the_Geolocation_API
+slug: Web/API/Geolocation_API/Using_the_Geolocation_API
 translation_of: Web/API/Geolocation_API/Using_the_Geolocation_API
+original_slug: Web/API/Geolocation/Using_geolocation/Using_the_Geolocation_API
 ---
 <div>{{securecontext_header}}{{DefaultAPISidebar("Geolocation API")}}</div>
 
diff --git a/files/ar/web/api/history_api/مثال/index.html b/files/ar/web/api/history_api/example/index.html
index 1bcce72374..b31bb01cf2 100644
--- a/files/ar/web/api/history_api/مثال/index.html
+++ b/files/ar/web/api/history_api/example/index.html
@@ -1,7 +1,8 @@
 ---
 title: مثال تصفح آجاكس
-slug: Web/API/History_API/مثال
+slug: Web/API/History_API/Example
 translation_of: Web/API/History_API/Example
+original_slug: Web/API/History_API/مثال
 ---
 <p dir="rtl">هذا مثال عن موقع واب يستعمل تقنية Ajax مُكَـوَّن فقط من ثلاث صفحات (<em>first_page.php</em>، <em>second_page.php </em> و <em>third_page.php</em>). لرؤية كيفية اشتغالها، رجاء، قم بصنع الملفات التالية (أو git clone <a href="https://github.com/giabao/mdn-ajax-nav-example" title="/en-US/docs/">https://github.com/giabao/mdn-ajax-nav-example.git</a>)</p>
 
diff --git a/files/ar/web/api/navigator.battery/index.html b/files/ar/web/api/navigator/battery/index.html
index 563c6d5288..0596c21aed 100644
--- a/files/ar/web/api/navigator.battery/index.html
+++ b/files/ar/web/api/navigator/battery/index.html
@@ -1,6 +1,6 @@
 ---
 title: Navigator.battery
-slug: Web/API/Navigator.battery
+slug: Web/API/Navigator/battery
 tags:
   - API
   - batter
@@ -8,6 +8,7 @@ tags:
   - المراجع
   - كائن البطارية
 translation_of: Web/API/Navigator/battery
+original_slug: Web/API/Navigator.battery
 ---
 <p>{{ ApiRef() }}</p>
 <h2 id="الملخص">الملخص</h2>
diff --git a/files/ar/web/css/التعليقات/index.html b/files/ar/web/css/comments/index.html
index 4fbf59d3f9..8f7726f714 100644
--- a/files/ar/web/css/التعليقات/index.html
+++ b/files/ar/web/css/comments/index.html
@@ -1,12 +1,13 @@
 ---
 title: التعليقات
-slug: Web/CSS/التعليقات
+slug: Web/CSS/Comments
 tags:
   - CSS
   - تعليقات
   - مرجع
   - ملاحظات
 translation_of: Web/CSS/Comments
+original_slug: Web/CSS/التعليقات
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ar/web/css/العناصر_التي_يمكن_تحريكها_باستخدام_css_transitions/index.html b/files/ar/web/css/css_animated_properties/index.html
index d9a0da44f2..2af4826ad4 100644
--- a/files/ar/web/css/العناصر_التي_يمكن_تحريكها_باستخدام_css_transitions/index.html
+++ b/files/ar/web/css/css_animated_properties/index.html
@@ -1,6 +1,6 @@
 ---
 title: العناصر التي يمكن تحريكها باستخدام CSS Transitions
-slug: Web/CSS/العناصر_التي_يمكن_تحريكها_باستخدام_CSS_Transitions
+slug: Web/CSS/CSS_animated_properties
 tags:
   - CSS
   - CSS3
@@ -9,6 +9,7 @@ tags:
   - سلاسة
   - نعومة
 translation_of: Web/CSS/CSS_animated_properties
+original_slug: Web/CSS/العناصر_التي_يمكن_تحريكها_باستخدام_CSS_Transitions
 ---
 <p>{{CSSRef}}</p>
 
diff --git a/files/ar/web/css/css_flexible_box_layout/المفاهيم_الأساسية_للصندوق_المرن/index.html b/files/ar/web/css/css_flexible_box_layout/basic_concepts_of_flexbox/index.html
index c30338c62b..5556baedd5 100644
--- a/files/ar/web/css/css_flexible_box_layout/المفاهيم_الأساسية_للصندوق_المرن/index.html
+++ b/files/ar/web/css/css_flexible_box_layout/basic_concepts_of_flexbox/index.html
@@ -1,7 +1,8 @@
 ---
 title: المفاهيم الأساسية للصندوق المرن
-slug: Web/CSS/CSS_Flexible_Box_Layout/المفاهيم_الأساسية_للصندوق_المرن
+slug: Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
 translation_of: Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
+original_slug: Web/CSS/CSS_Flexible_Box_Layout/المفاهيم_الأساسية_للصندوق_المرن
 ---
 <div dir="rtl">{{CSSRef}}</div>
 
diff --git a/files/ar/web/css/css_grid_layout/relationship_of_grid_layout_arabic/index.html b/files/ar/web/css/css_grid_layout/relationship_of_grid_layout/index.html
index 7ccf10282f..04cd3b6370 100644
--- a/files/ar/web/css/css_grid_layout/relationship_of_grid_layout_arabic/index.html
+++ b/files/ar/web/css/css_grid_layout/relationship_of_grid_layout/index.html
@@ -1,7 +1,8 @@
 ---
 title: العلاقة بين التنسيق الشبكي وطرق التنسيق الأخرى
-slug: Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout_arabic
+slug: Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout
 translation_of: Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout
+original_slug: Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout_arabic
 ---
 <p dir="rtl">صمم التنسيق الشبكي ليعمل جنبا إلى جنب مع جميع التنسيقات الأخرى مشكلا بذلك نظاما متكاملا لإنشاءها. في هذا الدليل سوف نشرح كيف يتوافق النظام الشبكي مع التقنيات الأخرى التي كنت قد استعملتها سابقا.</p>
 
diff --git a/files/ar/web/css/التحول/index.html b/files/ar/web/css/transform/index.html
index 93ef2bb84e..19ad672774 100644
--- a/files/ar/web/css/التحول/index.html
+++ b/files/ar/web/css/transform/index.html
@@ -1,6 +1,6 @@
 ---
 title: التحول (transform)
-slug: Web/CSS/التحول
+slug: Web/CSS/transform
 tags:
   - التحول
   - التحول في صفحات الطرز المتراصة
@@ -8,6 +8,7 @@ tags:
   - صفحات الطرز المتراصة
   - مرجع
 translation_of: Web/CSS/transform
+original_slug: Web/CSS/التحول
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ar/web/guide/الرسومات/index.html b/files/ar/web/guide/graphics/index.html
index 9c8335471a..34229e4441 100644
--- a/files/ar/web/guide/الرسومات/index.html
+++ b/files/ar/web/guide/graphics/index.html
@@ -1,12 +1,13 @@
 ---
 title: الرسومات على الويب
-slug: Web/Guide/الرسومات
+slug: Web/Guide/Graphics
 tags:
   - رسومات
   - رسوميات ثلاثية الأبعاد
   - رسوميات ثنائية الأبعاد
   - كانفاس
 translation_of: Web/Guide/Graphics
+original_slug: Web/Guide/الرسومات
 ---
 <p dir="rtl"><span class="seoSummary">غالباً ما تحتاج المواقع والتطبيقات لعرض الرسومات.</span> الصور العاديّة يمكن عرضها بسهولة باستخدام العنصر {{HTMLElement("img")}}، أو بإعداد خلفيّة الصفحة باستخدام الخاصيّة {{cssxref("background-image")}}. تستطيع أيضاً إنشاء رسومات في الهواء (طافية)، أو يمكنك التلاعب بالصور بعد حدث ما. <span class="seoSummary">هذه المقالات توفر نظرة حول كيف يمكنك القيام بهذه الأشياء.</span></p>
 
diff --git a/files/ar/web_development/mobile/index.html b/files/ar/web/guide/mobile/index.html
index cc288a9c45..11f17242c7 100644
--- a/files/ar/web_development/mobile/index.html
+++ b/files/ar/web/guide/mobile/index.html
@@ -1,6 +1,6 @@
 ---
 title: Mobile Web development
-slug: Web_Development/Mobile
+slug: Web/Guide/Mobile
 tags:
   - Mobile
   - NeedsTranslation
@@ -8,6 +8,7 @@ tags:
   - Web Development
 translation_of: Web/Guide/Mobile
 translation_of_original: Web_Development/Mobile
+original_slug: Web_Development/Mobile
 ---
 <p>Developing web sites to be viewed on mobile devices requires approaches that ensure a web site works as well on mobile devices as it does on desktop browsers. The following articles describe some of these approaches.</p>
 <ul>
diff --git a/files/ar/html/element/article/index.html b/files/ar/web/html/element/article/index.html
index 4ffbdbe80a..ac37a279f7 100644
--- a/files/ar/html/element/article/index.html
+++ b/files/ar/web/html/element/article/index.html
@@ -1,7 +1,8 @@
 ---
 title: عنصر المقالة <article>
-slug: HTML/Element/article
+slug: Web/HTML/Element/article
 translation_of: Web/HTML/Element/article
+original_slug: HTML/Element/article
 ---
 <div>{{HTMLRef}}</div>
 
diff --git a/files/ar/html/element/bdo/index.html b/files/ar/web/html/element/bdo/index.html
index ee154b30c1..5b7dd775eb 100644
--- a/files/ar/html/element/bdo/index.html
+++ b/files/ar/web/html/element/bdo/index.html
@@ -1,7 +1,8 @@
 ---
 title: '<bdo>: عنصر تجاوز النص ثنائي الاتجاه'
-slug: HTML/Element/bdo
+slug: Web/HTML/Element/bdo
 translation_of: Web/HTML/Element/bdo
+original_slug: HTML/Element/bdo
 ---
 <div>{{HTMLRef}}</div>
 
diff --git a/files/ar/html/element/headings_elements/index.html b/files/ar/web/html/element/heading_elements/index.html
index acd3267d37..4770490bd3 100644
--- a/files/ar/html/element/headings_elements/index.html
+++ b/files/ar/web/html/element/heading_elements/index.html
@@ -1,7 +1,8 @@
 ---
 title: '<h1>–<h6>: عناصر العناوين'
-slug: HTML/Element/headings_elements
+slug: Web/HTML/Element/Heading_Elements
 translation_of: Web/HTML/Element/Heading_Elements
+original_slug: HTML/Element/headings_elements
 ---
 <p dir="rtl"> عناصر <span class="seoSummary"><strong><code>&lt;h1&gt;</code>–<code>&lt;h6&gt;</code></strong></span> تقدم لنا سته مستويات من عناوين الأقسام. حيث أن العنصر<span class="seoSummary"><code>&lt;h1&gt;</code> يمثل العنوان الأعلى مستوى في الأهمية بينما العنصر <code>&lt;h2&gt;</code> هو الأقل.</span></p>
 
diff --git a/files/ar/html/element/index.html b/files/ar/web/html/element/index.html
index a2fb5187e7..753d271820 100644
--- a/files/ar/html/element/index.html
+++ b/files/ar/web/html/element/index.html
@@ -1,7 +1,8 @@
 ---
 title: HTML element reference
-slug: HTML/Element
+slug: Web/HTML/Element
 translation_of: Web/HTML/Element
+original_slug: HTML/Element
 ---
 <p><font><font>يسرد مرجع HTML هذا جميع </font></font><strong><font><font>عناصر HTML</font></font></strong><font><font> ، المحددة في HTML5 أو في مواصفات سابقة. </font><font>عند تضمينها داخل أقواس زاوية ، فإنها تشكل </font></font><em><font><font>علامات HTML</font></font></em><font><font> : </font></font><code>&lt;elementname&gt;.</code><font><font>العناصر عبارة عن كيانات تحدد كيفية إنشاء مستندات HTML ، ونوع المحتوى الذي يجب وضعه في أي جزء من </font><font>مستند </font></font><a href="https://developer.mozilla.org/en-US/docs/HTML" title="/ EN-US / مستندات / HTML"><font><font>HTML</font></font></a><font><font> .</font></font></p>
 
diff --git a/files/ar/html/element/span/index.html b/files/ar/web/html/element/span/index.html
index 79a265b804..faaf3faf7f 100644
--- a/files/ar/html/element/span/index.html
+++ b/files/ar/web/html/element/span/index.html
@@ -1,7 +1,8 @@
 ---
 title: <span>
-slug: HTML/Element/span
+slug: Web/HTML/Element/span
 translation_of: Web/HTML/Element/span
+original_slug: HTML/Element/span
 ---
 <p><font><font>و </font></font><strong><font><font>HTML </font></font><code>&lt;span&gt;</code><font><font>العنصر</font></font></strong><font><font> هو حاوية مضمنة عامة لمحتوى الصيغة، التي لا تمثل في حد ذاتها أي شيء. </font><font>يمكن استخدامه لتجميع العناصر لأغراض التصميم (باستخدام </font></font><code>class</code><font><font>أو </font></font><code>id</code><font><font>السمات) ، أو لأنها تتشارك في قيم السمات ، مثل </font></font><code>lang</code><font><font>. </font></font><font><font>يجب استخدامه فقط عندما يكون أي عنصر دلالي آخر مناسبًا. </font></font><code>&lt;span&gt;</code><font><font>تشبه إلى حد كبير على </font></font><a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/div" title="عنصر قسم محتويات HTML (&lt;div>) هو الحاوية العامة لمحتوى التدفق.  ليس له تأثير على المحتوى أو التخطيط حتى يتم تصميمه باستخدام CSS."><code>&lt;div&gt;</code></a><font><font>عنصر، ولكن </font></font><a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/div" title="عنصر قسم محتويات HTML (&lt;div>) هو الحاوية العامة لمحتوى التدفق.  ليس له تأثير على المحتوى أو التخطيط حتى يتم تصميمه باستخدام CSS."><code>&lt;div&gt;</code></a><font><font>هو </font></font><a href="https://developer.mozilla.org/en-US/docs/HTML/Block-level_elements"><font><font>عنصر على مستوى الكتلة</font></font></a><font><font> في حين أن </font></font><code>&lt;span&gt;</code><font><font>هو </font></font><a href="https://developer.mozilla.org/en-US/docs/HTML/Inline_elements"><font><font>عنصر المضمنة</font></font></a><font><font> .</font></font></p>
 
diff --git a/files/ar/html/element/tt/index.html b/files/ar/web/html/element/tt/index.html
index 30cfcc09f9..79a788e995 100644
--- a/files/ar/html/element/tt/index.html
+++ b/files/ar/web/html/element/tt/index.html
@@ -1,7 +1,8 @@
 ---
 title: '<tt>: The Teletype Text element (obsolete)'
-slug: HTML/Element/tt
+slug: Web/HTML/Element/tt
 translation_of: Web/HTML/Element/tt
+original_slug: HTML/Element/tt
 ---
 <div>{{ obsolete_header() }}</div>
 
diff --git a/files/ar/web/javascript/guide/الدوال/index.html b/files/ar/web/javascript/guide/functions/index.html
index af934b397d..9c970e5440 100644
--- a/files/ar/web/javascript/guide/الدوال/index.html
+++ b/files/ar/web/javascript/guide/functions/index.html
@@ -1,11 +1,12 @@
 ---
 title: الدوال
-slug: Web/JavaScript/Guide/الدوال
+slug: Web/JavaScript/Guide/Functions
 tags:
   - الدوال
   - جافا سكريبت
   - دليل
 translation_of: Web/JavaScript/Guide/Functions
+original_slug: Web/JavaScript/Guide/الدوال
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Loops_and_iteration", "Web/JavaScript/Guide/Expressions_and_Operators")}}</div>
 
diff --git a/files/ar/web/javascript/reference/الدوال/get/index.html b/files/ar/web/javascript/reference/functions/get/index.html
index d3789ba7bd..1b809b8ad3 100644
--- a/files/ar/web/javascript/reference/الدوال/get/index.html
+++ b/files/ar/web/javascript/reference/functions/get/index.html
@@ -1,7 +1,8 @@
 ---
 title: getter
-slug: Web/JavaScript/Reference/الدوال/get
+slug: Web/JavaScript/Reference/Functions/get
 translation_of: Web/JavaScript/Reference/Functions/get
+original_slug: Web/JavaScript/Reference/الدوال/get
 ---
 <div>{{jsSidebar("Functions")}}</div>
 
diff --git a/files/ar/web/javascript/reference/الدوال/index.html b/files/ar/web/javascript/reference/functions/index.html
index 368d8af03d..0f051b1c7d 100644
--- a/files/ar/web/javascript/reference/الدوال/index.html
+++ b/files/ar/web/javascript/reference/functions/index.html
@@ -1,7 +1,8 @@
 ---
 title: الدوال
-slug: Web/JavaScript/Reference/الدوال
+slug: Web/JavaScript/Reference/Functions
 translation_of: Web/JavaScript/Reference/Functions
+original_slug: Web/JavaScript/Reference/الدوال
 ---
 <div>{{jsSidebar("Functions")}}</div>
 
diff --git a/files/ar/web/javascript/reference/global_objects/الارقام/index.html b/files/ar/web/javascript/reference/global_objects/number/index.html
index cb667fd3d8..7f4d5996a4 100644
--- a/files/ar/web/javascript/reference/global_objects/الارقام/index.html
+++ b/files/ar/web/javascript/reference/global_objects/number/index.html
@@ -1,7 +1,8 @@
 ---
 title: الارقام في الجافا سكربت
-slug: Web/JavaScript/Reference/Global_Objects/الارقام
+slug: Web/JavaScript/Reference/Global_Objects/Number
 translation_of: Web/JavaScript/Reference/Global_Objects/Number
+original_slug: Web/JavaScript/Reference/Global_Objects/الارقام
 ---
 <p> وهو كائن غلاف يستخدم لتمثيل ومعالجة الأرقام مثل  <code>37</code><em>  </em><strong>او </strong><code>9.25</code> <strong><code>Number</code></strong>منشئ يحتوي على الثوابت وطرق للعمل مع الأرقام. يمكن تحويل قيم الأنواع الأخرى إلى أرقام باستخدام <strong> </strong><strong><code>Number()</code>الوظيفة</strong>.</p>
 
diff --git a/files/ar/web/مرجع/index.html b/files/ar/web/reference/index.html
index fc7fd86cda..5f9ad294da 100644
--- a/files/ar/web/مرجع/index.html
+++ b/files/ar/web/reference/index.html
@@ -1,9 +1,10 @@
 ---
 title: مرجع تكنولوجيا الويب.
-slug: Web/مرجع.
+slug: Web/Reference
 tags:
   - مراجع
 translation_of: Web/Reference
+original_slug: Web/مرجع.
 ---
 <p>تم بناء الويب المفتوح باستخدام عدد من التقنيات.أدناه سوف تجد روابط لمراجعنا  التي توضح كل تقنية.</p>
 
diff --git a/files/ar/web/حماية/index.html b/files/ar/web/security/index.html
index c9c30e8ca4..70e58be06b 100644
--- a/files/ar/web/حماية/index.html
+++ b/files/ar/web/security/index.html
@@ -1,11 +1,12 @@
 ---
 title: حماية الويب
-slug: Web/حماية
+slug: Web/Security
 tags:
   - Landing
   - Security
   - Web
 translation_of: Web/Security
+original_slug: Web/حماية
 ---
 <div class="summary" dir="rtl">
 <p>من الضروري ضمان أن موقع الويب أو تطبيق الويب المفتوح آمن. حتى الأخطاء البسيطة في التعليمات البرمجية الخاصة بك يمكن أن تؤدي إلى تسرب المعلومات الخاصة ، والأشخاص السيئين يحاولون إيجاد طرق لسرقة البيانات. توفر المقالات الموجهة لأمان الويب الواردة هنا معلومات قد تساعدك في تأمين موقعك ورمزه من الهجمات وسرقة البيانات.</p>
diff --git a/files/bg/_wikihistory.json b/files/bg/_wikihistory.json
index 4ffd570ad8..b790a11071 100644
--- a/files/bg/_wikihistory.json
+++ b/files/bg/_wikihistory.json
@@ -27,29 +27,6 @@
       "kartelov"
     ]
   },
-  "Learn/Да_започнем_с_Мрежата": {
-    "modified": "2020-07-16T22:33:49.451Z",
-    "contributors": [
-      "kberov",
-      "mduchev",
-      "angelinag"
-    ]
-  },
-  "Learn/Да_започнем_с_Мрежата/Инсталиране_на_основния_софтуер": {
-    "modified": "2020-07-16T22:34:05.697Z",
-    "contributors": [
-      "kberov",
-      "mduchev",
-      "angelinag"
-    ]
-  },
-  "Learn/Да_започнем_с_Мрежата/Основи_на_HTML": {
-    "modified": "2020-07-16T22:34:42.357Z",
-    "contributors": [
-      "kberov",
-      "petya5q"
-    ]
-  },
   "MDN": {
     "modified": "2020-02-19T19:28:26.629Z",
     "contributors": [
@@ -58,13 +35,6 @@
       "wbamberg"
     ]
   },
-  "MDN/Getting_started": {
-    "modified": "2019-03-18T21:35:03.859Z",
-    "contributors": [
-      "wbamberg",
-      "L37sg0"
-    ]
-  },
   "Mozilla": {
     "modified": "2020-12-12T09:30:03.073Z",
     "contributors": [
@@ -140,12 +110,6 @@
       "chrisdavidmills"
     ]
   },
-  "Web/Guide/Графики": {
-    "modified": "2019-03-23T22:06:42.140Z",
-    "contributors": [
-      "rorinka"
-    ]
-  },
   "Web/HTML": {
     "modified": "2019-09-10T15:18:10.244Z",
     "contributors": [
@@ -371,20 +335,6 @@
   "Web/JavaScript/Reference/Operators": {
     "modified": "2020-12-14T04:30:59.125Z"
   },
-  "Web/JavaScript/Reference/Operators/Arithmetic_Operators": {
-    "modified": "2020-10-15T22:29:49.563Z",
-    "contributors": [
-      "dplamenov"
-    ]
-  },
-  "Web/JavaScript/Reference/Operators/разпределящ_синтаксис": {
-    "modified": "2020-10-15T22:23:17.971Z",
-    "contributors": [
-      "kopa4a",
-      "kberov",
-      "ksimeonova"
-    ]
-  },
   "Web/SVG": {
     "modified": "2019-03-18T21:32:18.223Z",
     "contributors": [
@@ -403,103 +353,153 @@
       "petya5q2"
     ]
   },
-  "Web/SVG/Ръководство": {
-    "modified": "2019-03-18T21:32:33.959Z",
+  "Learn/Getting_started_with_the_web": {
+    "modified": "2020-07-16T22:33:49.451Z",
     "contributors": [
-      "petya5q2"
+      "kberov",
+      "mduchev",
+      "angelinag"
     ]
   },
-  "Речник": {
-    "modified": "2020-10-07T11:06:15.491Z",
+  "Learn/Getting_started_with_the_web/Installing_basic_software": {
+    "modified": "2020-07-16T22:34:05.697Z",
+    "contributors": [
+      "kberov",
+      "mduchev",
+      "angelinag"
+    ]
+  },
+  "Learn/Getting_started_with_the_web/HTML_basics": {
+    "modified": "2020-07-16T22:34:42.357Z",
+    "contributors": [
+      "kberov",
+      "petya5q"
+    ]
+  },
+  "MDN/Contribute/Getting_started": {
+    "modified": "2019-03-18T21:35:03.859Z",
     "contributors": [
-      "peterbe",
-      "SphinxKnight",
       "wbamberg",
-      "kberov"
+      "L37sg0"
+    ]
+  },
+  "Web/Guide/Graphics": {
+    "modified": "2019-03-23T22:06:42.140Z",
+    "contributors": [
+      "rorinka"
+    ]
+  },
+  "Web/JavaScript/Reference/Operators/Spread_syntax": {
+    "modified": "2020-10-15T22:23:17.971Z",
+    "contributors": [
+      "kopa4a",
+      "kberov",
+      "ksimeonova"
     ]
   },
-  "Речник/404": {
+  "Web/SVG/Tutorial": {
+    "modified": "2019-03-18T21:32:33.959Z",
+    "contributors": [
+      "petya5q2"
+    ]
+  },
+  "Glossary/404": {
     "modified": "2019-03-18T21:35:09.380Z",
     "contributors": [
       "kberov",
       "venimus"
     ]
   },
-  "Речник/Browser": {
+  "Glossary/array": {
+    "modified": "2019-03-23T22:04:38.875Z",
+    "contributors": [
+      "kberov"
+    ]
+  },
+  "Glossary/Browser": {
     "modified": "2019-03-23T22:04:50.137Z",
     "contributors": [
       "kberov",
       "stoyanster"
     ]
   },
-  "Речник/CSS": {
+  "Glossary/CSS": {
     "modified": "2019-03-23T22:03:48.968Z",
     "contributors": [
       "kberov"
     ]
   },
-  "Речник/ECMA": {
+  "Glossary/ECMA": {
     "modified": "2019-03-18T21:15:32.098Z",
     "contributors": [
       "kberov"
     ]
   },
-  "Речник/HTML": {
+  "Glossary/HTML": {
     "modified": "2019-03-23T22:13:43.475Z",
     "contributors": [
       "kberov",
       "stoyanster"
     ]
   },
-  "Речник/HTTP": {
+  "Glossary/HTTP": {
     "modified": "2019-03-23T22:04:23.041Z",
     "contributors": [
       "kberov"
     ]
   },
-  "Речник/Hypertext": {
+  "Glossary/Hypertext": {
     "modified": "2019-03-23T22:04:02.582Z",
     "contributors": [
       "kberov"
     ]
   },
-  "Речник/Internet": {
-    "modified": "2019-03-23T22:03:43.619Z",
+  "Glossary": {
+    "modified": "2020-10-07T11:06:15.491Z",
     "contributors": [
+      "peterbe",
+      "SphinxKnight",
+      "wbamberg",
       "kberov"
     ]
   },
-  "Речник/JSON": {
-    "modified": "2019-03-23T22:04:00.137Z",
+  "Glossary/Internet": {
+    "modified": "2019-03-23T22:03:43.619Z",
     "contributors": [
-      "kberov",
-      "tatarski"
+      "kberov"
     ]
   },
-  "Речник/JavaScript": {
+  "Glossary/JavaScript": {
     "modified": "2019-03-23T22:04:32.960Z",
     "contributors": [
       "_serendipity_",
       "kberov"
     ]
   },
-  "Речник/Server": {
+  "Glossary/JSON": {
+    "modified": "2019-03-23T22:04:00.137Z",
+    "contributors": [
+      "kberov",
+      "tatarski"
+    ]
+  },
+  "Glossary/Server": {
     "modified": "2019-03-23T22:04:25.240Z",
     "contributors": [
       "kberov"
     ]
   },
-  "Речник/World_Wide_Web": {
+  "Glossary/World_Wide_Web": {
     "modified": "2019-03-23T22:04:45.195Z",
     "contributors": [
       "kberov",
       "dafo"
     ]
   },
-  "Речник/array": {
-    "modified": "2019-03-23T22:04:38.875Z",
+  "conflicting/Web/JavaScript/Reference/Operators": {
+    "modified": "2020-10-15T22:29:49.563Z",
     "contributors": [
-      "kberov"
+      "dplamenov"
     ]
   }
 }
\ No newline at end of file
diff --git a/files/bg/web/javascript/reference/operators/arithmetic_operators/index.html b/files/bg/conflicting/web/javascript/reference/operators/index.html
index 085aebbbc6..994dc9b3b2 100644
--- a/files/bg/web/javascript/reference/operators/arithmetic_operators/index.html
+++ b/files/bg/conflicting/web/javascript/reference/operators/index.html
@@ -1,8 +1,9 @@
 ---
 title: Arithmetic operators
-slug: Web/JavaScript/Reference/Operators/Arithmetic_Operators
+slug: conflicting/Web/JavaScript/Reference/Operators
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Arithmetic_Operators
+original_slug: Web/JavaScript/Reference/Operators/Arithmetic_Operators
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/bg/речник/404/index.html b/files/bg/glossary/404/index.html
index 02c5395f00..6e0ac2ee4e 100644
--- a/files/bg/речник/404/index.html
+++ b/files/bg/glossary/404/index.html
@@ -1,7 +1,8 @@
 ---
 title: '404'
-slug: Речник/404
+slug: Glossary/404
 translation_of: Glossary/404
+original_slug: Речник/404
 ---
 <p>404 е стандартизиран код за отговор (Standard Response Code), който означава, че {{Glossary("Server", "сървърът")}} не може да открие заявения ресурс (най-често страница или файл).</p>
 
diff --git a/files/bg/речник/array/index.html b/files/bg/glossary/array/index.html
index 977aafb05c..ad91c0ca20 100644
--- a/files/bg/речник/array/index.html
+++ b/files/bg/glossary/array/index.html
@@ -1,7 +1,8 @@
 ---
 title: Масив
-slug: Речник/array
+slug: Glossary/array
 translation_of: Glossary/array
+original_slug: Речник/array
 ---
 <p>Масивът е подреден сбор от данни ( {{Glossary("primitive")}} или {{Glossary("object")}} в зависимост от езика). Масивите се използват за съхраняване на множество данни в една променлива. С това те се различават от други променливи, които могат да съхраняват само една стойност в себе си.</p>
 
diff --git a/files/bg/речник/browser/index.html b/files/bg/glossary/browser/index.html
index 09aebc1a6c..66f44d483b 100644
--- a/files/bg/речник/browser/index.html
+++ b/files/bg/glossary/browser/index.html
@@ -1,12 +1,13 @@
 ---
 title: Мрежов четец
-slug: Речник/Browser
+slug: Glossary/Browser
 tags:
   - Навигация
   - Речник
   - браузър
   - мрежов четец
 translation_of: Glossary/Browser
+original_slug: Речник/Browser
 ---
 <p><em>Мрежовият четец</em> (браузър) е програма, която извилича и показва страници от {{Glossary("World Wide Web","световната мрежа")}} и дава възможност на потребителите да достигат до други страници като използват препратки ({{Glossary("hyperlink","хипервръзки")}}).</p>
 
diff --git a/files/bg/речник/css/index.html b/files/bg/glossary/css/index.html
index d2d59408b9..eade8ae5b6 100644
--- a/files/bg/речник/css/index.html
+++ b/files/bg/glossary/css/index.html
@@ -1,12 +1,13 @@
 ---
 title: CSS
-slug: Речник/CSS
+slug: Glossary/CSS
 tags:
   - CSS
   - Програмиране
   - Речник
   - уеб
 translation_of: Glossary/CSS
+original_slug: Речник/CSS
 ---
 <p><span class="seoSummary"><strong>CSS</strong> (Cascading Style Sheets) (Каскадни (изсипващи се) Стилови Листове)  е декларативен език, определящ външния вид на страниците в {{glossary("browser","мрежовия четец")}}.</span> Браузърът прилага свойствата, описани в CSS върху външния вид на елементите. Определенията за външен вид и поведение съдържат свойства със стойности, които задават начина, по който изглежда страницата.</p>
 
diff --git a/files/bg/речник/ecma/index.html b/files/bg/glossary/ecma/index.html
index 07e8dc0a87..6498f5aacd 100644
--- a/files/bg/речник/ecma/index.html
+++ b/files/bg/glossary/ecma/index.html
@@ -1,7 +1,8 @@
 ---
 title: ECMA
-slug: Речник/ECMA
+slug: Glossary/ECMA
 translation_of: Glossary/ECMA
+original_slug: Речник/ECMA
 ---
 <p><strong>Ecma International</strong> (<em>European Computer Manufacturers Association</em>) —  Асоциация на Европейските Производители на Компютри е организация с нестопанска цел, разработваща стандарти за компютри, свързаност между тях и програмни езици.</p>
 
diff --git a/files/bg/речник/html/index.html b/files/bg/glossary/html/index.html
index 38d3e9cf75..beb73c7d40 100644
--- a/files/bg/речник/html/index.html
+++ b/files/bg/glossary/html/index.html
@@ -1,11 +1,12 @@
 ---
 title: HTML
-slug: Речник/HTML
+slug: Glossary/HTML
 tags:
   - HTML
   - Кодене
   - Речник
 translation_of: Glossary/HTML
+original_slug: Речник/HTML
 ---
 <p>HTML (HyperText Markup Language – език за обозначаване на свръх-текст)  е описателен език, който задава строежа на уебстраниците.</p>
 
diff --git a/files/bg/речник/http/index.html b/files/bg/glossary/http/index.html
index a91927c343..8f20d464d7 100644
--- a/files/bg/речник/http/index.html
+++ b/files/bg/glossary/http/index.html
@@ -1,12 +1,13 @@
 ---
 title: HTTP
-slug: Речник/HTTP
+slug: Glossary/HTTP
 tags:
   - HTTP
   - Речник
   - инфраструктура
   - начинаещ
 translation_of: Glossary/HTTP
+original_slug: Речник/HTTP
 ---
 <p>HTTP (HyperText Transfer Protocol – протокол за пренос на свръх-текст) е основния {{glossary("protocol", "протокол")}}, позволяващ пренос на файлове в {{glossary("World Wide Web","мрежата")}}. HTTP се основава на текст и не съхранява данни за състояние. Цялото общуване се случва чрез предаване на обикновени текстови съобщения. Всяко съобщение е само за себе си, не знае нищо за никое друго съобщение.</p>
 
diff --git a/files/bg/речник/hypertext/index.html b/files/bg/glossary/hypertext/index.html
index e459c8bb33..95120e5cdf 100644
--- a/files/bg/речник/hypertext/index.html
+++ b/files/bg/glossary/hypertext/index.html
@@ -1,12 +1,13 @@
 ---
 title: Хипертекст
-slug: Речник/Hypertext
+slug: Glossary/Hypertext
 tags:
   - WebMechanics
   - Речник
   - свръх-текст
   - уеб
 translation_of: Glossary/Hypertext
+original_slug: Речник/Hypertext
 ---
 <p>Хипертекст (свръх-текст) (от англ. hypertext) е текст, съдържащ {{glossary("hyperlink","препратки")}} (връзки) към други текстове. Това е нещо повече от обикновения поток от думи като в новела например.</p>
 
diff --git a/files/bg/речник/index.html b/files/bg/glossary/index.html
index b01ea4a49d..a0451a72f1 100644
--- a/files/bg/речник/index.html
+++ b/files/bg/glossary/index.html
@@ -1,12 +1,13 @@
 ---
 title: Речник
-slug: Речник
+slug: Glossary
 tags:
   - Показалец
   - Речник
   - начална страница
   - начинаещ
 translation_of: Glossary
+original_slug: Речник
 ---
 <div style="max-width: 300px; float: right; margin: 0 0 .5em 1em;">{{LearnBox({"title":"Learn a new term:"})}}</div>
 
diff --git a/files/bg/речник/internet/index.html b/files/bg/glossary/internet/index.html
index 95486a4f1a..88753d6082 100644
--- a/files/bg/речник/internet/index.html
+++ b/files/bg/glossary/internet/index.html
@@ -1,6 +1,6 @@
 ---
 title: Интернет
-slug: Речник/Internet
+slug: Glossary/Internet
 tags:
   - Въведение
   - Речник
@@ -9,6 +9,7 @@ tags:
   - ръководство
   - уеб
 translation_of: Glossary/Internet
+original_slug: Речник/Internet
 ---
 <p>Интернет е световна мрежа, съставена от други мрежи, която използва общи правила, наречени Интернет Протоколи. Съвкупността от протоколи е позната още като {{glossary("TCP")}}/{{glossary("IPv6","IP")}} заради двата най-важни {{glossary("protocol","протокола")}} в нея.</p>
 
diff --git a/files/bg/речник/javascript/index.html b/files/bg/glossary/javascript/index.html
index 2b03e49b9e..84ced5d919 100644
--- a/files/bg/речник/javascript/index.html
+++ b/files/bg/glossary/javascript/index.html
@@ -1,11 +1,12 @@
 ---
 title: JavaScript
-slug: Речник/JavaScript
+slug: Glossary/JavaScript
 tags:
   - JavaScript
   - Програмиране
   - Речник
 translation_of: Glossary/JavaScript
+original_slug: Речник/JavaScript
 ---
 <p>JavaScript (JS)  е език за програмиране, използван най-вече от страната на клиента за осъществяване на програми, работещи в уебстраниците, но често и за програми, работещи на <a href="/bg/docs/Речник/Server">сървъра</a>, където се използват среди за изпълнение като <a href="http://nodejs.org/" rel="external">Node.js</a>.</p>
 
diff --git a/files/bg/речник/json/index.html b/files/bg/glossary/json/index.html
index 45928dce83..d3b86de1ce 100644
--- a/files/bg/речник/json/index.html
+++ b/files/bg/glossary/json/index.html
@@ -1,6 +1,6 @@
 ---
 title: JSON
-slug: Речник/JSON
+slug: Glossary/JSON
 tags:
   - JSON
   - Въведение
@@ -8,6 +8,7 @@ tags:
   - Речник
   - скрипт
 translation_of: Glossary/JSON
+original_slug: Речник/JSON
 ---
 <p><em>JavaScript Object Notation</em> (<strong>JSON</strong>) е формат за обмен на данни, наподобавящ синтаксиса за създаване на обекти в {{Glossary("JavaScript")}}. Въпреки че много езици поддържат JSON, той е особено полезен в приложения на JavaScript, в това число сайтове и разширения за мрежовите четци.</p>
 
diff --git a/files/bg/речник/server/index.html b/files/bg/glossary/server/index.html
index 7ffc740e02..e2f77a65e8 100644
--- a/files/bg/речник/server/index.html
+++ b/files/bg/glossary/server/index.html
@@ -1,6 +1,6 @@
 ---
 title: Сървър
-slug: Речник/Server
+slug: Glossary/Server
 tags:
   - Мрежи
   - Речник
@@ -8,6 +8,7 @@ tags:
   - инфраструктура
   - протокол
 translation_of: Glossary/Server
+original_slug: Речник/Server
 ---
 <p>Хардуерният сървър представлява компютър в мрежа, който предоставя услуги на други компютри – клиенти. Софтуерният сървър е програма, която предоставя услуги на клиентски програми.</p>
 
diff --git a/files/bg/речник/world_wide_web/index.html b/files/bg/glossary/world_wide_web/index.html
index 12b3b7e34f..836673659b 100644
--- a/files/bg/речник/world_wide_web/index.html
+++ b/files/bg/glossary/world_wide_web/index.html
@@ -1,12 +1,13 @@
 ---
 title: Световната мрежа
-slug: Речник/World_Wide_Web
+slug: Glossary/World_Wide_Web
 tags:
   - WWW
   - Речник
   - инфраструктура
   - уеб
 translation_of: Glossary/World_Wide_Web
+original_slug: Речник/World_Wide_Web
 ---
 <p>Световната мрежа (<em>World Wide Web</em>) — всеизвестна като <strong>WWW</strong>, <strong>W3</strong> или просто <strong>Уеб</strong> е взаимосвързана система от общодостъпни страници в {{Glossary("Internet", "Интернет")}}. Уеб не е същото нещо като Интернет: Уеб е едно от многото приложения (начини за ползване) на Интернет.</p>
 
diff --git a/files/bg/learn/да_започнем_с_мрежата/основи_на_html/index.html b/files/bg/learn/getting_started_with_the_web/html_basics/index.html
index 5525426bd7..7cb9755a81 100644
--- a/files/bg/learn/да_започнем_с_мрежата/основи_на_html/index.html
+++ b/files/bg/learn/getting_started_with_the_web/html_basics/index.html
@@ -1,6 +1,6 @@
 ---
 title: Основи на HTML
-slug: Learn/Да_започнем_с_Мрежата/Основи_на_HTML
+slug: Learn/Getting_started_with_the_web/HTML_basics
 tags:
   - HTML
   - Кодене
@@ -10,6 +10,7 @@ tags:
   - начинаещ
   - уеб
 translation_of: Learn/Getting_started_with_the_web/HTML_basics
+original_slug: Learn/Да_започнем_с_Мрежата/Основи_на_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/bg/learn/да_започнем_с_мрежата/index.html b/files/bg/learn/getting_started_with_the_web/index.html
index 874790d34b..5e0367ed44 100644
--- a/files/bg/learn/да_започнем_с_мрежата/index.html
+++ b/files/bg/learn/getting_started_with_the_web/index.html
@@ -1,6 +1,6 @@
 ---
 title: Да започнем с мрежата
-slug: Learn/Да_започнем_с_Мрежата
+slug: Learn/Getting_started_with_the_web
 tags:
   - CSS
   - HTML
@@ -10,6 +10,7 @@ tags:
   - ръководство
   - теория
 translation_of: Learn/Getting_started_with_the_web
+original_slug: Learn/Да_започнем_с_Мрежата
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/bg/learn/да_започнем_с_мрежата/инсталиране_на_основния_софтуер/index.html b/files/bg/learn/getting_started_with_the_web/installing_basic_software/index.html
index fa82c84655..fc7a5011cc 100644
--- a/files/bg/learn/да_започнем_с_мрежата/инсталиране_на_основния_софтуер/index.html
+++ b/files/bg/learn/getting_started_with_the_web/installing_basic_software/index.html
@@ -1,6 +1,6 @@
 ---
 title: Инсталиране на основния софтуер
-slug: Learn/Да_започнем_с_Мрежата/Инсталиране_на_основния_софтуер
+slug: Learn/Getting_started_with_the_web/Installing_basic_software
 tags:
   - Настройки
   - инструменти
@@ -8,6 +8,7 @@ tags:
   - текстов редактор
   - уебчетец
 translation_of: Learn/Getting_started_with_the_web/Installing_basic_software
+original_slug: Learn/Да_започнем_с_Мрежата/Инсталиране_на_основния_софтуер
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/bg/mdn/getting_started/index.html b/files/bg/mdn/contribute/getting_started/index.html
index 8f59fed2bd..f722f6ab21 100644
--- a/files/bg/mdn/getting_started/index.html
+++ b/files/bg/mdn/contribute/getting_started/index.html
@@ -1,6 +1,6 @@
 ---
 title: Първи стъпки в MDN
-slug: MDN/Getting_started
+slug: MDN/Contribute/Getting_started
 tags:
   - MDN Мета
   - наръчник
@@ -8,6 +8,7 @@ tags:
   - представяне
   - първи стъпки
 translation_of: MDN/Contribute/Getting_started
+original_slug: MDN/Getting_started
 ---
 <div>{{MDNSidebar}}</div><div>{{IncludeSubnav("/en-US/docs/MDN")}}</div>
 
diff --git a/files/bg/web/guide/графики/index.html b/files/bg/web/guide/graphics/index.html
index 76930482d8..c9638e95f0 100644
--- a/files/bg/web/guide/графики/index.html
+++ b/files/bg/web/guide/graphics/index.html
@@ -1,6 +1,6 @@
 ---
 title: Графики в мрежовото пространство
-slug: Web/Guide/Графики
+slug: Web/Guide/Graphics
 tags:
   - 2D
   - Видео
@@ -9,6 +9,7 @@ tags:
   - аудио
   - уеб
 translation_of: Web/Guide/Graphics
+original_slug: Web/Guide/Графики
 ---
 <p> </p>
 
diff --git a/files/bg/web/javascript/reference/operators/разпределящ_синтаксис/index.html b/files/bg/web/javascript/reference/operators/spread_syntax/index.html
index e8a9b0dfe1..7ed649a4bc 100644
--- a/files/bg/web/javascript/reference/operators/разпределящ_синтаксис/index.html
+++ b/files/bg/web/javascript/reference/operators/spread_syntax/index.html
@@ -1,7 +1,8 @@
 ---
 title: Разпределящ синтаксис
-slug: Web/JavaScript/Reference/Operators/разпределящ_синтаксис
+slug: Web/JavaScript/Reference/Operators/Spread_syntax
 translation_of: Web/JavaScript/Reference/Operators/Spread_syntax
+original_slug: Web/JavaScript/Reference/Operators/разпределящ_синтаксис
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/bg/web/svg/ръководство/index.html b/files/bg/web/svg/tutorial/index.html
index 054fafbdb6..08f7b89957 100644
--- a/files/bg/web/svg/ръководство/index.html
+++ b/files/bg/web/svg/tutorial/index.html
@@ -1,10 +1,11 @@
 ---
 title: Ръководство за използване на SVG
-slug: Web/SVG/Ръководство
+slug: Web/SVG/Tutorial
 tags:
   - SVG Ръководство
   - ръководство
 translation_of: Web/SVG/Tutorial
+original_slug: Web/SVG/Ръководство
 ---
 <p>Мащабируеми векторни графики (Scalable Vector Graphics), <a href="/en-US/Web/SVG" title="en-US/Web/SVG">SVG</a>, е разновидност на  W3C XML  за маркиране на графики. Частично се изпълнява от Firefox, Opera, WebKit browsers, Internet Explorer и други браузъри.</p>
 
diff --git a/files/bn/_redirects.txt b/files/bn/_redirects.txt
index d084981b8b..1d401b0273 100644
--- a/files/bn/_redirects.txt
+++ b/files/bn/_redirects.txt
@@ -1,9 +1,43 @@
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+/bn/docs/HTML/HTML5	/bn/docs/Web/Guide/HTML/HTML5
+/bn/docs/HTML/HTML5/Introduction_to_HTML5	/bn/docs/Web/Guide/HTML/HTML5/Introduction_to_HTML5
 /bn/docs/IndexedDB	/bn/docs/Web/API/IndexedDB_API
+/bn/docs/Learn/JavaScript/First_steps/জাভাস্ক্রিপ্ট-কী	/bn/docs/Learn/JavaScript/First_steps/What_is_JavaScript
+/bn/docs/Localization	/bn/docs/Glossary/Localization
+/bn/docs/MDN/Community	/bn/docs/orphaned/MDN/Community
+/bn/docs/MDN/Community/Whats_happening	/bn/docs/orphaned/MDN/Community/Whats_happening
 /bn/docs/MDN/Contribute/Content	/bn/docs/MDN/Guidelines
-/bn/docs/MDN/Contribute/Content/Style_guide	/bn/docs/MDN/Guidelines/Style_guide
+/bn/docs/MDN/Contribute/Content/Style_guide	/bn/docs/MDN/Guidelines/Writing_style_guide
+/bn/docs/MDN/Contribute/Creating_and_editing_pages	/bn/docs/MDN/Contribute/Howto/Create_and_edit_pages
+/bn/docs/MDN/Contribute/Howto/Create_an_MDN_account	/bn/docs/orphaned/MDN/Contribute/Howto/Create_an_MDN_account
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 /bn/docs/MDN/Getting_started	/bn/docs/MDN/Contribute/Getting_started
+/bn/docs/MDN/Guidelines/Style_guide	/bn/docs/MDN/Guidelines/Writing_style_guide
+/bn/docs/MDN_at_ten	/bn/docs/MDN/At_ten
+/bn/docs/Mozilla/ফায়ারফক্স	/bn/docs/Mozilla/Firefox
+/bn/docs/Mozilla/ফায়ারফক্স/রিলিজস	/bn/docs/Mozilla/Firefox/Releases
+/bn/docs/Tools/ত্রিমাত্রিক_দর্শন	/bn/docs/Tools/3D_View
+/bn/docs/Web/CSS/Getting_Started	/bn/docs/Learn/CSS/First_steps
+/bn/docs/Web/CSS/Getting_Started/Color	/bn/docs/Learn/CSS/Building_blocks/Values_and_units
+/bn/docs/Web/CSS/Getting_Started/How_CSS_works	/bn/docs/Learn/CSS/First_steps/How_CSS_works
+/bn/docs/Web/CSS/Getting_Started/Readable_CSS	/bn/docs/Learn/CSS/First_steps/How_CSS_is_structured
+/bn/docs/Web/CSS/Getting_Started/Text_styles	/bn/docs/Learn/CSS/Styling_text/Fundamentals
+/bn/docs/Web/CSS/Getting_Started/Why_use_CSS	/bn/docs/conflicting/Learn/CSS/First_steps/How_CSS_works
+/bn/docs/Web/CSS/Getting_Started/নই	/bn/docs/Learn/CSS/Building_blocks/Selectors
+/bn/docs/Web/CSS/Getting_Started/লে-আউট	/bn/docs/Learn/CSS/CSS_layout
 /bn/docs/Web/CSS/element	/bn/docs/Web/CSS/element()
+/bn/docs/Web/Guide/API/DOM	/bn/docs/conflicting/Web/API/Document_Object_Model
+/bn/docs/Web/Guide/API/WebRTC	/bn/docs/Web/API/WebRTC_API
+/bn/docs/Web/Guide/HTML/Canvas_tutorial	/bn/docs/Web/API/Canvas_API/Tutorial
+/bn/docs/Web/Guide/HTML/Content_Editable	/bn/docs/Web/Guide/HTML/Editable_content
+/bn/docs/Web/Guide/HTML/Forms	/bn/docs/Learn/Forms
+/bn/docs/Web/Guide/গ্রাফিক্স	/bn/docs/Web/Guide/Graphics
+/bn/docs/Web/HTML/CORS_settings_attributes	/bn/docs/Web/HTML/Attributes/crossorigin
+/bn/docs/Web/HTML/Canvas	/bn/docs/Web/API/Canvas_API
+/bn/docs/Web/HTML/Canvas/Tutorial	/bn/docs/conflicting/Web/API/Canvas_API/Tutorial
+/bn/docs/Web/HTML/Focus_management_in_HTML	/bn/docs/Web/API/Document/hasFocus
+/bn/docs/Web/JavaScript/ভাষার_রিসোর্স	/bn/docs/Web/JavaScript/Language_Resources
+/bn/docs/Web_Development	/bn/docs/conflicting/Web/Guide
 /bn/docs/en	/en-US/
diff --git a/files/bn/_wikihistory.json b/files/bn/_wikihistory.json
index dbc76359b5..4c70eb27ce 100644
--- a/files/bn/_wikihistory.json
+++ b/files/bn/_wikihistory.json
@@ -1,11 +1,4 @@
 {
-  "DOM": {
-    "modified": "2019-03-23T23:25:08.675Z",
-    "contributors": [
-      "badsha_eee",
-      "teoli"
-    ]
-  },
   "Glossary": {
     "modified": "2020-10-07T11:06:43.575Z",
     "contributors": [
@@ -40,23 +33,6 @@
       "tuxboy"
     ]
   },
-  "HTML/HTML5": {
-    "modified": "2019-03-23T23:35:15.435Z",
-    "contributors": [
-      "teoli",
-      "badsha_eee",
-      "ashickur_noor",
-      "tuxboy"
-    ]
-  },
-  "HTML/HTML5/Introduction_to_HTML5": {
-    "modified": "2019-03-23T23:22:57.838Z",
-    "contributors": [
-      "shafiul",
-      "Maliha81",
-      "jaggedzak"
-    ]
-  },
   "Learn": {
     "modified": "2020-09-11T13:07:06.291Z",
     "contributors": [
@@ -124,12 +100,6 @@
       "SphinxKnight"
     ]
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-  "Learn/JavaScript/First_steps/জাভাস্ক্রিপ্ট-কী": {
-    "modified": "2020-07-23T11:41:02.501Z",
-    "contributors": [
-      "promisind"
-    ]
-  },
   "Learn/Server-side": {
     "modified": "2020-07-16T22:35:55.391Z",
     "contributors": [
@@ -155,12 +125,6 @@
       "promisind"
     ]
   },
-  "Localization": {
-    "modified": "2019-03-23T23:27:22.624Z",
-    "contributors": [
-      "badsha_eee"
-    ]
-  },
   "MDN": {
     "modified": "2020-02-19T18:52:16.503Z",
     "contributors": [
@@ -172,25 +136,6 @@
       "teoli"
     ]
   },
-  "MDN/Community": {
-    "modified": "2019-09-04T05:42:20.308Z",
-    "contributors": [
-      "Naahid",
-      "voiceofmoments",
-      "wbamberg",
-      "Shubhobd",
-      "teoli",
-      "badsha_eee"
-    ]
-  },
-  "MDN/Community/Whats_happening": {
-    "modified": "2019-03-23T23:27:03.844Z",
-    "contributors": [
-      "wbamberg",
-      "teoli",
-      "badsha_eee"
-    ]
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   "MDN/Contribute": {
     "modified": "2019-01-16T18:29:06.865Z",
     "contributors": [
@@ -202,14 +147,6 @@
       "Sheppy"
     ]
   },
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-    "modified": "2019-01-16T17:44:34.088Z",
-    "contributors": [
-      "wbamberg",
-      "teoli",
-      "badsha_eee"
-    ]
-  },
   "MDN/Contribute/Getting_started": {
     "modified": "2020-09-30T17:09:15.654Z",
     "contributors": [
@@ -234,13 +171,6 @@
       "badsha_eee"
     ]
   },
-  "MDN/Contribute/Howto/Create_an_MDN_account": {
-    "modified": "2019-01-16T18:29:56.107Z",
-    "contributors": [
-      "wbamberg",
-      "badsha_eee"
-    ]
-  },
   "MDN/Guidelines": {
     "modified": "2020-09-30T15:28:12.396Z",
     "contributors": [
@@ -249,15 +179,6 @@
       "Sheppy"
     ]
   },
-  "MDN/Guidelines/Style_guide": {
-    "modified": "2020-09-30T15:28:13.100Z",
-    "contributors": [
-      "chrisdavidmills",
-      "jswisher",
-      "wbamberg",
-      "shamimsw"
-    ]
-  },
   "MDN/Structures": {
     "modified": "2020-09-30T09:04:16.032Z",
     "contributors": [
@@ -274,13 +195,6 @@
       "jswisher"
     ]
   },
-  "MDN_at_ten": {
-    "modified": "2019-03-23T22:50:40.078Z",
-    "contributors": [
-      "Bolaram",
-      "badsha_eee"
-    ]
-  },
   "Mozilla": {
     "modified": "2019-03-23T23:34:34.377Z",
     "contributors": [
@@ -335,27 +249,6 @@
       "badsha_eee"
     ]
   },
-  "Mozilla/ফায়ারফক্স": {
-    "modified": "2020-01-18T12:34:49.048Z",
-    "contributors": [
-      "leela52452",
-      "SphinxKnight",
-      "wbamberg",
-      "jwhitlock",
-      "badsha_eee",
-      "Bolaram",
-      "ashickur_noor",
-      "Sudipto.chy"
-    ]
-  },
-  "Mozilla/ফায়ারফক্স/রিলিজস": {
-    "modified": "2019-04-09T14:31:52.314Z",
-    "contributors": [
-      "wbamberg",
-      "shafiul",
-      "Sudipto.chy"
-    ]
-  },
   "Tools": {
     "modified": "2020-07-16T22:44:13.511Z",
     "contributors": [
@@ -390,13 +283,6 @@
       "mimzi_fahia"
     ]
   },
-  "Tools/ত্রিমাত্রিক_দর্শন": {
-    "modified": "2020-07-16T22:34:24.936Z",
-    "contributors": [
-      "wbamberg",
-      "MUHAMMAD_KHAN"
-    ]
-  },
   "Web": {
     "modified": "2019-01-16T17:29:41.603Z",
     "contributors": [
@@ -499,62 +385,6 @@
       "teoli"
     ]
   },
-  "Web/CSS/Getting_Started": {
-    "modified": "2019-03-23T23:31:51.964Z",
-    "contributors": [
-      "teoli",
-      "tuxboy"
-    ]
-  },
-  "Web/CSS/Getting_Started/Color": {
-    "modified": "2019-03-23T23:11:32.781Z",
-    "contributors": [
-      "Saki336",
-      "Maliha81"
-    ]
-  },
-  "Web/CSS/Getting_Started/How_CSS_works": {
-    "modified": "2019-03-23T23:21:45.414Z",
-    "contributors": [
-      "Bolaram",
-      "mimzi_fahia",
-      "kamrunNaharRuma",
-      "teoli"
-    ]
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-    "modified": "2019-03-23T23:10:14.661Z",
-    "contributors": [
-      "teoli",
-      "amena-synthia"
-    ]
-  },
-  "Web/CSS/Getting_Started/Text_styles": {
-    "modified": "2019-03-23T23:11:32.510Z",
-    "contributors": [
-      "MalihaDipty"
-    ]
-  },
-  "Web/CSS/Getting_Started/Why_use_CSS": {
-    "modified": "2019-03-23T23:21:57.361Z",
-    "contributors": [
-      "Bolaram",
-      "teoli",
-      "mimzi_fahia"
-    ]
-  },
-  "Web/CSS/Getting_Started/নই": {
-    "modified": "2019-03-23T23:10:32.206Z",
-    "contributors": [
-      "rabeya"
-    ]
-  },
-  "Web/CSS/Getting_Started/লে-আউট": {
-    "modified": "2019-03-23T23:11:30.667Z",
-    "contributors": [
-      "Prome"
-    ]
-  },
   "Web/CSS/element()": {
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     "contributors": [
@@ -583,54 +413,18 @@
       "Sheppy"
     ]
   },
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-    "modified": "2019-01-16T18:05:53.775Z",
-    "contributors": [
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-    ]
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-  "Web/Guide/API/WebRTC": {
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-    "contributors": [
-      "tuxboy"
-    ]
-  },
   "Web/Guide/Events": {
     "modified": "2019-03-23T23:10:51.342Z",
     "contributors": [
       "Jeremie"
     ]
   },
-  "Web/Guide/HTML/Canvas_tutorial": {
-    "modified": "2019-03-23T23:22:41.275Z",
-    "contributors": [
-      "mahmudtamim"
-    ]
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-  "Web/Guide/HTML/Content_Editable": {
-    "modified": "2019-03-23T23:22:35.093Z",
-    "contributors": [
-      "sourav1"
-    ]
-  },
-  "Web/Guide/HTML/Forms": {
-    "modified": "2020-07-16T22:20:53.344Z",
-    "contributors": [
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-    ]
-  },
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     "contributors": [
       "shakil18"
     ]
   },
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-    ]
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   "Web/HTML": {
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     "contributors": [
@@ -656,28 +450,6 @@
       "ToufiqAminRumi"
     ]
   },
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-    "contributors": [
-      "hmmonir"
-    ]
-  },
-  "Web/HTML/Canvas": {
-    "modified": "2019-03-23T23:31:43.205Z",
-    "contributors": [
-      "SphinxKnight",
-      "spsumon44",
-      "teoli",
-      "tuxboy"
-    ]
-  },
-  "Web/HTML/Canvas/Tutorial": {
-    "modified": "2019-03-23T23:31:44.732Z",
-    "contributors": [
-      "teoli",
-      "tuxboy"
-    ]
-  },
   "Web/HTML/Element": {
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     "contributors": [
@@ -726,12 +498,6 @@
       "hmmonir"
     ]
   },
-  "Web/HTML/Focus_management_in_HTML": {
-    "modified": "2019-03-23T22:41:57.848Z",
-    "contributors": [
-      "ToufiqAminRumi"
-    ]
-  },
   "Web/HTML/Global_attributes": {
     "modified": "2019-03-23T22:47:22.868Z",
     "contributors": [
@@ -933,15 +699,6 @@
       "mohammadshohagulislam"
     ]
   },
-  "Web/JavaScript/ভাষার_রিসোর্স": {
-    "modified": "2020-03-12T19:39:11.262Z",
-    "contributors": [
-      "fscholz",
-      "teoli",
-      "shafiul",
-      "arifrhb"
-    ]
-  },
   "Web/Reference": {
     "modified": "2019-03-23T23:25:25.072Z",
     "contributors": [
@@ -960,11 +717,254 @@
       "munny"
     ]
   },
-  "Web_Development": {
+  "Web/Guide/HTML/HTML5": {
+    "modified": "2019-03-23T23:35:15.435Z",
+    "contributors": [
+      "teoli",
+      "badsha_eee",
+      "ashickur_noor",
+      "tuxboy"
+    ]
+  },
+  "Web/Guide/HTML/HTML5/Introduction_to_HTML5": {
+    "modified": "2019-03-23T23:22:57.838Z",
+    "contributors": [
+      "shafiul",
+      "Maliha81",
+      "jaggedzak"
+    ]
+  },
+  "Learn/JavaScript/First_steps/What_is_JavaScript": {
+    "modified": "2020-07-23T11:41:02.501Z",
+    "contributors": [
+      "promisind"
+    ]
+  },
+  "Glossary/Localization": {
+    "modified": "2019-03-23T23:27:22.624Z",
+    "contributors": [
+      "badsha_eee"
+    ]
+  },
+  "MDN/At_ten": {
+    "modified": "2019-03-23T22:50:40.078Z",
+    "contributors": [
+      "Bolaram",
+      "badsha_eee"
+    ]
+  },
+  "orphaned/MDN/Community": {
+    "modified": "2019-09-04T05:42:20.308Z",
+    "contributors": [
+      "Naahid",
+      "voiceofmoments",
+      "wbamberg",
+      "Shubhobd",
+      "teoli",
+      "badsha_eee"
+    ]
+  },
+  "orphaned/MDN/Community/Whats_happening": {
+    "modified": "2019-03-23T23:27:03.844Z",
+    "contributors": [
+      "wbamberg",
+      "teoli",
+      "badsha_eee"
+    ]
+  },
+  "MDN/Contribute/Howto/Create_and_edit_pages": {
+    "modified": "2019-01-16T17:44:34.088Z",
+    "contributors": [
+      "wbamberg",
+      "teoli",
+      "badsha_eee"
+    ]
+  },
+  "orphaned/MDN/Contribute/Howto/Create_an_MDN_account": {
+    "modified": "2019-01-16T18:29:56.107Z",
+    "contributors": [
+      "wbamberg",
+      "badsha_eee"
+    ]
+  },
+  "MDN/Guidelines/Writing_style_guide": {
+    "modified": "2020-09-30T15:28:13.100Z",
+    "contributors": [
+      "chrisdavidmills",
+      "jswisher",
+      "wbamberg",
+      "shamimsw"
+    ]
+  },
+  "Mozilla/Firefox": {
+    "modified": "2020-01-18T12:34:49.048Z",
+    "contributors": [
+      "leela52452",
+      "SphinxKnight",
+      "wbamberg",
+      "jwhitlock",
+      "badsha_eee",
+      "Bolaram",
+      "ashickur_noor",
+      "Sudipto.chy"
+    ]
+  },
+  "Mozilla/Firefox/Releases": {
+    "modified": "2019-04-09T14:31:52.314Z",
+    "contributors": [
+      "wbamberg",
+      "shafiul",
+      "Sudipto.chy"
+    ]
+  },
+  "Tools/3D_View": {
+    "modified": "2020-07-16T22:34:24.936Z",
+    "contributors": [
+      "wbamberg",
+      "MUHAMMAD_KHAN"
+    ]
+  },
+  "Web/API/Canvas_API/Tutorial": {
+    "modified": "2019-03-23T23:22:41.275Z",
+    "contributors": [
+      "mahmudtamim"
+    ]
+  },
+  "Web/Guide/HTML/Editable_content": {
+    "modified": "2019-03-23T23:22:35.093Z",
+    "contributors": [
+      "sourav1"
+    ]
+  },
+  "Learn/Forms": {
+    "modified": "2020-07-16T22:20:53.344Z",
+    "contributors": [
+      "kmsuzan"
+    ]
+  },
+  "Web/Guide/Graphics": {
+    "modified": "2019-03-23T23:20:59.963Z",
+    "contributors": [
+      "shakil18"
+    ]
+  },
+  "Web/API/Canvas_API": {
+    "modified": "2019-03-23T23:31:43.205Z",
+    "contributors": [
+      "SphinxKnight",
+      "spsumon44",
+      "teoli",
+      "tuxboy"
+    ]
+  },
+  "Web/HTML/Attributes/crossorigin": {
+    "modified": "2019-03-23T22:42:33.032Z",
+    "contributors": [
+      "hmmonir"
+    ]
+  },
+  "Web/JavaScript/Language_Resources": {
+    "modified": "2020-03-12T19:39:11.262Z",
+    "contributors": [
+      "fscholz",
+      "teoli",
+      "shafiul",
+      "arifrhb"
+    ]
+  },
+  "Web/API/Document_Object_Model": {
+    "modified": "2019-03-23T23:25:08.675Z",
+    "contributors": [
+      "badsha_eee",
+      "teoli"
+    ]
+  },
+  "conflicting/Web/Guide": {
     "modified": "2019-03-23T23:31:46.369Z",
     "contributors": [
       "tuxboy",
       "ethertank"
     ]
+  },
+  "Learn/CSS/Building_blocks/Values_and_units": {
+    "modified": "2019-03-23T23:11:32.781Z",
+    "contributors": [
+      "Saki336",
+      "Maliha81"
+    ]
+  },
+  "Learn/CSS/First_steps/How_CSS_works": {
+    "modified": "2019-03-23T23:21:45.414Z",
+    "contributors": [
+      "Bolaram",
+      "mimzi_fahia",
+      "kamrunNaharRuma",
+      "teoli"
+    ]
+  },
+  "Learn/CSS/First_steps": {
+    "modified": "2019-03-23T23:31:51.964Z",
+    "contributors": [
+      "teoli",
+      "tuxboy"
+    ]
+  },
+  "Learn/CSS/First_steps/How_CSS_is_structured": {
+    "modified": "2019-03-23T23:10:14.661Z",
+    "contributors": [
+      "teoli",
+      "amena-synthia"
+    ]
+  },
+  "Learn/CSS/Styling_text/Fundamentals": {
+    "modified": "2019-03-23T23:11:32.510Z",
+    "contributors": [
+      "MalihaDipty"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps/How_CSS_works": {
+    "modified": "2019-03-23T23:21:57.361Z",
+    "contributors": [
+      "Bolaram",
+      "teoli",
+      "mimzi_fahia"
+    ]
+  },
+  "Learn/CSS/Building_blocks/Selectors": {
+    "modified": "2019-03-23T23:10:32.206Z",
+    "contributors": [
+      "rabeya"
+    ]
+  },
+  "Learn/CSS/CSS_layout": {
+    "modified": "2019-03-23T23:11:30.667Z",
+    "contributors": [
+      "Prome"
+    ]
+  },
+  "conflicting/Web/API/Document_Object_Model": {
+    "modified": "2019-01-16T18:05:53.775Z",
+    "contributors": [
+      "shahvishald"
+    ]
+  },
+  "Web/API/WebRTC_API": {
+    "modified": "2019-03-23T22:37:29.214Z",
+    "contributors": [
+      "tuxboy"
+    ]
+  },
+  "conflicting/Web/API/Canvas_API/Tutorial": {
+    "modified": "2019-03-23T23:31:44.732Z",
+    "contributors": [
+      "teoli",
+      "tuxboy"
+    ]
+  },
+  "Web/API/Document/hasFocus": {
+    "modified": "2019-03-23T22:41:57.848Z",
+    "contributors": [
+      "ToufiqAminRumi"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/bn/web/css/getting_started/why_use_css/index.html b/files/bn/conflicting/learn/css/first_steps/how_css_works/index.html
index 860f960e96..b5d5f8a476 100644
--- a/files/bn/web/css/getting_started/why_use_css/index.html
+++ b/files/bn/conflicting/learn/css/first_steps/how_css_works/index.html
@@ -1,10 +1,11 @@
 ---
 title: কেন CSS ব্যবহার করবেন ?
-slug: Web/CSS/Getting_Started/Why_use_CSS
+slug: conflicting/Learn/CSS/First_steps/How_CSS_works
 tags:
   - NeedsReview
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/Why_use_CSS
+original_slug: Web/CSS/Getting_Started/Why_use_CSS
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/bn/web/html/canvas/tutorial/index.html b/files/bn/conflicting/web/api/canvas_api/tutorial/index.html
index 85ee94310d..163ce0d09d 100644
--- a/files/bn/web/html/canvas/tutorial/index.html
+++ b/files/bn/conflicting/web/api/canvas_api/tutorial/index.html
@@ -1,8 +1,9 @@
 ---
 title: ক্যানভাস টিউটোরিয়াল
-slug: Web/HTML/Canvas/Tutorial
+slug: conflicting/Web/API/Canvas_API/Tutorial
 translation_of: Web/API/Canvas_API/Tutorial
 translation_of_original: Canvas-tutorial-broken
+original_slug: Web/HTML/Canvas/Tutorial
 ---
 <p><strong><code><a href="/bn-BD/docs/HTML/Canvas" title="HTML/Canvas">&lt;canvas&gt;</a></code></strong> হল একটি <a href="/bn-BD/docs/HTML" title="HTML">HTML</a> এলিমেন্ট, যা দ্বারা স্ক্রিপ্টিংয়ের (সাধারণত <a href="/bn-BD/docs/JavaScript" title="JavaScript">জাভাস্ক্রিপ্ট</a>) সাহায্যে গ্রাফিক্স আঁকা যায়। এটি অবশ্য গ্রাফিক্স আঁকা, ছবি কম্পোজিশন তৈরি করা এবং সাধারণ (এবং <a href="/bn-BD/docs/HTML/Canvas/A_Basic_RayCaster" title="A_Basic_RayCaster">অসাধারণ</a>) এনিমেশন তৈরির কাজ করতে পারে।</p>
 <p><code>&lt;canvas&gt;</code> এর জন্য মোজিলা অ্যাপ্লিকেশনসমূহ সাপোর্ট পাওয়া শুরু করেছে গিকো ১.৮ (বা <a class="new" href="https://developer.mozilla.org/bn-BD/docs/Firefox_1.5_for_developers" title="Firefox_1.5_for_developers">ফায়ারফক্স ১.৫</a>) থেকে। মূলত এ্যাপল তাদের <a class="external" href="http://www.apple.com/macosx/features/dashboard/">ড্যাশবোর্ড</a> এবং সাফারির জন্য এলিমেন্টটি প্রকাশ করে। <code>&lt;canvas&gt;</code> এলিমেন্টটি <a class="external" href="http://www.whatwg.org/specs/web-apps/current-work/">WhatWG Web applications 1.0</a> স্পেসিফিকেশনের একটি অংশ, যা HTML5 নামেও পরিচিত।</p>
diff --git a/files/bn/web/guide/api/dom/index.html b/files/bn/conflicting/web/api/document_object_model/index.html
index 253046a6c3..2eb76f283c 100644
--- a/files/bn/web/guide/api/dom/index.html
+++ b/files/bn/conflicting/web/api/document_object_model/index.html
@@ -1,6 +1,6 @@
 ---
 title: DOM developer guide
-slug: Web/Guide/API/DOM
+slug: conflicting/Web/API/Document_Object_Model
 tags:
   - API
   - DOM
@@ -9,6 +9,7 @@ tags:
   - TopicStub
 translation_of: Web/API/Document_Object_Model
 translation_of_original: Web/Guide/API/DOM
+original_slug: Web/Guide/API/DOM
 ---
 <p>{{draft}}</p>
 <p>The <a href="/docs/DOM">Document Object Model</a> is an API for <a href="/en-US/docs/HTML">HTML</a> and <a href="/en-US/docs/XML">XML</a> documents. It provides a structural representation of the document, enabling the developer to modify its content and visual presentation. Essentially, it connects web pages to scripts or programming languages.</p>
diff --git a/files/bn/web_development/index.html b/files/bn/conflicting/web/guide/index.html
index d60dff2905..b3fb2a168f 100644
--- a/files/bn/web_development/index.html
+++ b/files/bn/conflicting/web/guide/index.html
@@ -1,12 +1,13 @@
 ---
 title: Web Development
-slug: Web_Development
+slug: conflicting/Web/Guide
 tags:
   - NeedsTranslation
   - TopicStub
   - Web Development
 translation_of: Web/Guide
 translation_of_original: Web_Development
+original_slug: Web_Development
 ---
 <p><strong>ওয়েব ডেভেলপমেন্ট </strong>বলতে একটি ওয়েবসাইট বা ওয়েব অ্যাপ্লিকেশন তৈরির প্রতিটি দিককে বোঝানো হয়।</p>
 <p>Learn how to create anything from a simple web site to complex, highly interactive web sites featuring the latest Web technologies by perusing the articles you'll find here.</p>
diff --git a/files/bn/localization/index.html b/files/bn/glossary/localization/index.html
index c88e548079..11058d9aaa 100644
--- a/files/bn/localization/index.html
+++ b/files/bn/glossary/localization/index.html
@@ -1,10 +1,11 @@
 ---
 title: স্থানীয়করণ
-slug: Localization
+slug: Glossary/Localization
 tags:
   - অনুবাদ
   - স্থানীয়করণ
 translation_of: Glossary/Localization
+original_slug: Localization
 ---
 <p><strong>স্থানীয়করণ</strong> (L10n) হচ্ছে এমন একটি প্রক্রিয়া, যা দ্বারা একটি সফটওয়্যারের ইউজার ইন্টারফেস একটি ভাষা থেকে অন্য ভাষায় রুপান্তর করা হয়। এবং সেই দেশের সংস্কৃতির সাথে সামঞ্জস্যপূর্ণ ও অধিবাসীদের ব্যবহার উপযোগী করা হয়। যাদের প্রযুক্তির প্রতি ও প্রযুক্তির স্থানীয়করণের প্রতি আগ্রহ রয়েছে, এসব রিসোর্স তাঁদের সকলের জন্য উন্মুক্ত। এগুলো ডেভেলপার ও অন্যান্য অবদানকারীর জন্য।</p>
 <table class="topicpage-table">
diff --git a/files/bn/web/css/getting_started/নই/index.html b/files/bn/learn/css/building_blocks/selectors/index.html
index ab2f05fae5..6bbeccf572 100644
--- a/files/bn/web/css/getting_started/নই/index.html
+++ b/files/bn/learn/css/building_blocks/selectors/index.html
@@ -1,11 +1,11 @@
 ---
 title: নির্বাচক সমুহ
-slug: Web/CSS/Getting_Started/নই
+slug: Learn/CSS/Building_blocks/Selectors
 tags:
   - Beginner
   - CSS
   - CSS Selector
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - NeedsBeginnerUpdate
@@ -14,6 +14,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Building_blocks/Selectors
 translation_of_original: Web/Guide/CSS/Getting_started/Selectors
+original_slug: Web/CSS/Getting_Started/নই
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 <p>{{ previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Cascading_and_inheritance", "Cascading &amp; inheritance")}}<span class="seoSummary">এটি <a href="/en-US/docs/Web/Guide/CSS/Getting_Started" title="en-US/docs/Web/Guide/CSS/Getting Started">CSS Getting Started</a> টিউটোরিয়াল এর ৫ম অংশ; এটি ব্যাখ্যা করে আপনি কিভাবে স্টাইল সমুহ নির্বাচিতভাবে প্রয়োগ করবেন, এবং কিভাবে বিভিন্ন প্রকার নির্বাচক সমুহ বিভিন্ন প্রাধান্য পায়। আপনি আপনার নমুনা নিবন্ধে কিছু এট্রিবিউট যোগ করতে পারেন, এবং আপনি সেসব এট্রিবিউটগুলো আপনার নমুনা স্টাইলশীটে ব্যবহার করতে পারেন ।</span></p>
diff --git a/files/bn/web/css/getting_started/color/index.html b/files/bn/learn/css/building_blocks/values_and_units/index.html
index 715c208203..17b93dfffb 100644
--- a/files/bn/web/css/getting_started/color/index.html
+++ b/files/bn/learn/css/building_blocks/values_and_units/index.html
@@ -1,6 +1,6 @@
 ---
 title: রং
-slug: Web/CSS/Getting_Started/Color
+slug: Learn/CSS/Building_blocks/Values_and_units
 tags:
   - CSS
   - Example
@@ -8,6 +8,7 @@ tags:
   - NeedsReview
 translation_of: Learn/CSS/Introduction_to_CSS/Values_and_units#Colors
 translation_of_original: Web/Guide/CSS/Getting_started/Color
+original_slug: Web/CSS/Getting_Started/Color
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 <p>{{previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Text_styles", "Text styles")}}এটা হচ্ছে  <a href="/en-US/docs/Web/Guide/CSS/Getting_Started" title="en-US/docs/Web/Guide/CSS/Getting Started">যেভাবে শুরু করবেন CSS  </a> টিউটোরিয়ালের ৮ম বিভাগ; এটা ব্যাখ্যা করবে কিভাবে আপনি CSS এ রং উল্লেখ করবেন. আপনি আপনার নমুনা স্টাইলশিট এ পরিচিত হবেন background রং এর সাথে।</p>
diff --git a/files/bn/web/css/getting_started/লে-আউট/index.html b/files/bn/learn/css/css_layout/index.html
index 557ea8824c..c6ea906fa8 100644
--- a/files/bn/web/css/getting_started/লে-আউট/index.html
+++ b/files/bn/learn/css/css_layout/index.html
@@ -1,12 +1,12 @@
 ---
 title: Layout
-slug: Web/CSS/Getting_Started/লে-আউট
+slug: Learn/CSS/CSS_layout
 tags:
   - CSS
   - CSS Float
   - CSS Text Align
   - CSS Unit
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -16,6 +16,7 @@ tags:
   - needs review
 translation_of: Learn/CSS/CSS_layout
 translation_of_original: Web/Guide/CSS/Getting_started/Layout
+original_slug: Web/CSS/Getting_Started/লে-আউট
 ---
 <p style="margin-left: 40px;">{{ CSSTutorialTOC() }}</p>
 <p>{{ previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Boxes", "Boxes")}} <a href="/en-US/docs/Web/Guide/CSS/Getting_Started" title="en-US/docs/Web/Guide/CSS/Getting Started">CSS শুরু করা</a>র ১২তম অধ্যায় এটি;  আপনার ডকুমেন্টের লে-আউট কীভাবে adjust করা যায় তা রয়েছে এখানে। আপনার নমুনা ডকুমেন্টের লে-আউট আপনি পরিবর্তন করতে পারেন।</p>
diff --git a/files/bn/web/css/getting_started/readable_css/index.html b/files/bn/learn/css/first_steps/how_css_is_structured/index.html
index 49bdc94605..ce6781137e 100644
--- a/files/bn/web/css/getting_started/readable_css/index.html
+++ b/files/bn/learn/css/first_steps/how_css_is_structured/index.html
@@ -1,10 +1,11 @@
 ---
 title: Readable CSS
-slug: Web/CSS/Getting_Started/Readable_CSS
+slug: Learn/CSS/First_steps/How_CSS_is_structured
 tags:
   - NeedsReview
 translation_of: Learn/CSS/Introduction_to_CSS/Syntax#Beyond_syntax_make_CSS_readable
 translation_of_original: Web/Guide/CSS/Getting_started/Readable_CSS
+original_slug: Web/CSS/Getting_Started/Readable_CSS
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 <p>{{ previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors", "Selectors")}}<span class="seoSummary">This is the 6th section of the <a href="/en-US/docs/Web/Guide/CSS/Getting_Started" title="en-US/docs/Web/Guide/CSS/Getting Started">CSS Getting Started</a> tutorial; it discusses the style and grammar of the CSS language itself. You change the way your sample CSS file looks, to make it more readable.</span></p>
diff --git a/files/bn/web/css/getting_started/how_css_works/index.html b/files/bn/learn/css/first_steps/how_css_works/index.html
index 944a2f0398..566a6757d9 100644
--- a/files/bn/web/css/getting_started/how_css_works/index.html
+++ b/files/bn/learn/css/first_steps/how_css_works/index.html
@@ -1,14 +1,15 @@
 ---
 title: কিভাবে CSS কাজ করে
-slug: Web/CSS/Getting_Started/How_CSS_works
+slug: Learn/CSS/First_steps/How_CSS_works
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - NeedsReview
   - Web
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/How_CSS_works
+original_slug: Web/CSS/Getting_Started/How_CSS_works
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/bn/web/css/getting_started/index.html b/files/bn/learn/css/first_steps/index.html
index bafa4f6776..25d4dddb0c 100644
--- a/files/bn/web/css/getting_started/index.html
+++ b/files/bn/learn/css/first_steps/index.html
@@ -1,8 +1,9 @@
 ---
 title: যেভাবে শুরু করবেন (CSS টিউটোরিয়াল)
-slug: Web/CSS/Getting_Started
+slug: Learn/CSS/First_steps
 translation_of: Learn/CSS/First_steps
 translation_of_original: Web/Guide/CSS/Getting_started
+original_slug: Web/CSS/Getting_Started
 ---
 <p>সম্পূর্ণ নতুনদের জন্য লেখা এই CSS টিউটোরিয়াল আপনাকে <a href="/bn-BD/docs/CSS" title="/bn-BD/docs/CSS">Cascading Style Sheets</a> (<em>ক্যাসকেডিং স্টাইল শিট</em> বা CSS) এর সঙ্গে পরিচয় করিয়ে দেবে। এই গাইডটি ভাষাটির খুবই সাধারণ ফিচারগুলো সাথে উদাহরণসহ আপনাকে পরিচয় করিয়ে দেবে, যা আপনি নিজের ব্রাউজারে ঘরে বসেই চালিয়ে দেখতে পারবেন। এর ফলে আধুনিক ব্রাউজারগুলোতে CSS এর সাধারণ বিষয়গুলো আপনি সহজেই বুঝতে পারবেন।</p>
 <p>CSS এ নতুন, এমন পাঠকদের জন্যই এই টিউটোরিয়াল লেখা হয়েছে, যদি আপনার CSS এর কিছু অতি সাধারণ বিষয় জানাশোনা তারপরেও আপনি এটি ব্যবহার করতে পারবেন। আপনি যদি CSS এ অভিজ্ঞ হয়ে থাকেন, তবে এই টিউটোরিয়ালটি আপনার বিশেষ একটা উপকার করতে পারবে না, CSS এর মূল পৃষ্ঠায় আরও এ্যাডভান্সড বিষয়ের <a href="/bn-BD/docs/CSS" title="/bn-BD/docs/CSS">তালিকা</a> রয়েছে।</p>
diff --git a/files/bn/web/css/getting_started/text_styles/index.html b/files/bn/learn/css/styling_text/fundamentals/index.html
index 3a53021fe2..0c726c8886 100644
--- a/files/bn/web/css/getting_started/text_styles/index.html
+++ b/files/bn/learn/css/styling_text/fundamentals/index.html
@@ -1,15 +1,16 @@
 ---
 title: টেক্সট স্টাইল
-slug: Web/CSS/Getting_Started/Text_styles
+slug: Learn/CSS/Styling_text/Fundamentals
 tags:
   - Beginer
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - NeedsLiveSample
   - Web
 translation_of: Learn/CSS/Styling_text/Fundamentals
 translation_of_original: Web/Guide/CSS/Getting_started/Text_styles
+original_slug: Web/CSS/Getting_Started/Text_styles
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 <p>{{previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Readable_CSS", "Readable CSS")}}<span class="seoSummary">এটি হচ্ছে <a href="/en-US/docs/Web/Guide/CSS/Getting_Started" title="en-US/docs/Web/Guide/CSS/Getting Started">CSS Getting Started</a> এর ৭ম টীউটোরিয়াল, এখানে টক্সট স্টাইল এর অনেক উদাহরণ দেয়া আছে। একাহে বর্ণনা করা হয়েছে কিভাবে আপনি আপনার নমুনা stylesheet এ বিভিন্ন ফন্ট ব্যাবহার করবেন।</span></p>
diff --git a/files/bn/web/guide/html/forms/index.html b/files/bn/learn/forms/index.html
index 2e0e03ea83..8d3c7edcf9 100644
--- a/files/bn/web/guide/html/forms/index.html
+++ b/files/bn/learn/forms/index.html
@@ -1,9 +1,10 @@
 ---
 title: HTML forms guide
-slug: Web/Guide/HTML/Forms
+slug: Learn/Forms
 tags:
   - NeedsReview
 translation_of: Learn/Forms
+original_slug: Web/Guide/HTML/Forms
 ---
 <p>এই সহায়িকা হচ্ছে একটি সামগ্রিক নির্দেশিকা যা আপনাকে মাষ্টার<span style="background-color: #40e0d0;"> HTML</span> form তৈরি করতে সাহায্য করবে । <span id="result_box" lang="bn"><span class="hps"><span style="background-color: #00ffff;">HTML</span> from</span> <span class="hps">ব্যবহারকারীদের সাথে</span> <span class="hps">আলাপচারিতার</span> <span class="hps">জন্য খুব</span> <span class="hps">শক্তিশালী হাতিয়ার</span> <span class="hps">হয়</span></span> না । <span id="result_box" lang="bn"><span class="hps">এই সহায়িকার মধ্যে,<span style="background-color: #00ffff;"> </span></span><span id="result_box" lang="bn"><span class="hps"><span style="background-color: #00ffff;">HTML</span></span> from <span class="hps">হতে  </span></span><span class="hps">আমরা</span> <span class="hps">কাস্টম উইজেট</span> <span class="hps">করার</span> <span class="hps">পরিচালনার</span> <span class="hps">তথ্য</span> <span class="hps">থেকে</span> <span class="hps">কাঠামো</span> <span class="hps">থেকে</span> <span class="hps">স্টাইলিং</span> <span class="hps">করার</span></span>। তুমি এই শক্তিশালি অফার  শিখতে এবং উপভোগে পারবে।</p>
 <h2 id="বর্ন_মালা">বর্ন মালা</h2>
diff --git a/files/bn/learn/javascript/first_steps/জাভাস্ক্রিপ্ট-কী/index.html b/files/bn/learn/javascript/first_steps/what_is_javascript/index.html
index f42a4814cc..2d2f0528e1 100644
--- a/files/bn/learn/javascript/first_steps/জাভাস্ক্রিপ্ট-কী/index.html
+++ b/files/bn/learn/javascript/first_steps/what_is_javascript/index.html
@@ -1,7 +1,8 @@
 ---
 title: জাভাস্ক্রিপ্ট কী?
-slug: Learn/JavaScript/First_steps/জাভাস্ক্রিপ্ট-কী
+slug: Learn/JavaScript/First_steps/What_is_JavaScript
 translation_of: Learn/JavaScript/First_steps/What_is_JavaScript
+original_slug: Learn/JavaScript/First_steps/জাভাস্ক্রিপ্ট-কী
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/bn/mdn_at_ten/index.html b/files/bn/mdn/at_ten/index.html
index 1006f031c3..eb8062239f 100644
--- a/files/bn/mdn_at_ten/index.html
+++ b/files/bn/mdn/at_ten/index.html
@@ -1,7 +1,8 @@
 ---
 title: মজিলা ডেভেলপার নেটওয়ার্কের ১০ বছরে পদার্পণ ।
-slug: MDN_at_ten
+slug: MDN/At_ten
 translation_of: MDN_at_ten
+original_slug: MDN_at_ten
 ---
 <div class="summary">আপনার ওয়েব ডকুমেন্টেশনের ১০ বছরপূর্তি উদযাপন করুন।</div>
 
diff --git a/files/bn/mdn/contribute/creating_and_editing_pages/index.html b/files/bn/mdn/contribute/howto/create_and_edit_pages/index.html
index 4a07a890ac..c3c7f158a3 100644
--- a/files/bn/mdn/contribute/creating_and_editing_pages/index.html
+++ b/files/bn/mdn/contribute/howto/create_and_edit_pages/index.html
@@ -1,9 +1,10 @@
 ---
 title: পাতা তৈরি ও সম্পাদনা
-slug: MDN/Contribute/Creating_and_editing_pages
+slug: MDN/Contribute/Howto/Create_and_edit_pages
 tags:
   - NeedsReview
 translation_of: MDN/Contribute/Howto/Create_and_edit_pages
+original_slug: MDN/Contribute/Creating_and_editing_pages
 ---
 <div>{{MDNSidebar}}</div><p>মোজিলা ডেভেলপার নেটওয়ার্ক এর মৌলিক দুটি কাজ যা প্রায় সব অবদানকারী করে থাকে, তা হচ্ছে বর্তমান পৃষ্ঠাগুলো সম্পাদনা/সমৃদ্ধ করা এবং নতুন পৃষ্ঠা তৈরি করা। এই নিবন্ধটি সম্পাদনা ও নতুন পৃষ্ঠা তৈরি করার একেবারে মৌলিক কিছু কৌশল নিয়ে লেখা।</p>
 <h2 id="বর্তমান_পৃষ্ঠাগুলো_সমৃদ্ধকরণ">বর্তমান পৃষ্ঠাগুলো সমৃদ্ধকরণ</h2>
diff --git a/files/bn/mdn/guidelines/style_guide/index.html b/files/bn/mdn/guidelines/writing_style_guide/index.html
index 64597c50fa..9581225c77 100644
--- a/files/bn/mdn/guidelines/style_guide/index.html
+++ b/files/bn/mdn/guidelines/writing_style_guide/index.html
@@ -1,11 +1,12 @@
 ---
 title: MDN style guide
-slug: MDN/Guidelines/Style_guide
+slug: MDN/Guidelines/Writing_style_guide
 tags:
   - JavaScript
   - MDN
   - Project
 translation_of: MDN/Guidelines/Writing_style_guide
+original_slug: MDN/Guidelines/Style_guide
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/bn/mozilla/ফায়ারফক্স/index.html b/files/bn/mozilla/firefox/index.html
index de6c68bbec..3be83341ec 100644
--- a/files/bn/mozilla/ফায়ারফক্স/index.html
+++ b/files/bn/mozilla/firefox/index.html
@@ -1,9 +1,10 @@
 ---
 title: ফায়ারফক্স
-slug: Mozilla/ফায়ারফক্স
+slug: Mozilla/Firefox
 tags:
   - ফায়ারফক্স
 translation_of: Mozilla/Firefox
+original_slug: Mozilla/ফায়ারফক্স
 ---
 <div>{{FirefoxSidebar}}</div>
 
diff --git a/files/bn/mozilla/ফায়ারফক্স/রিলিজস/index.html b/files/bn/mozilla/firefox/releases/index.html
index 9027523416..36e5f82057 100644
--- a/files/bn/mozilla/ফায়ারফক্স/রিলিজস/index.html
+++ b/files/bn/mozilla/firefox/releases/index.html
@@ -1,9 +1,10 @@
 ---
 title: ফায়ারফক্স ডেভেলপার রিলিজ নোট্‌স
-slug: Mozilla/ফায়ারফক্স/রিলিজস
+slug: Mozilla/Firefox/Releases
 tags:
   - NeedsReview
 translation_of: Mozilla/Firefox/Releases
+original_slug: Mozilla/ফায়ারফক্স/রিলিজস
 ---
 <div>{{FirefoxSidebar}}</div><p>"ফায়ারফক্স এক্স ডেভেলপারস" দেরকে ফায়ারফক্স এর প্রতিটি রিলিজ এর প্রতিবেদন এর লিঙ্ক দিচ্ছে এই পেজ। ফায়ারফক্স এর প্রতিটি ভার্শন এর সাথে কি কি ফিচার যোগ এবং ভুলগুলো মুছে ফেলা হয়েছে তা এই নোটস এর মাধ্যমে আপনি দেখতে পারবেন।</p>
 
diff --git a/files/bn/mdn/community/index.html b/files/bn/orphaned/mdn/community/index.html
index f4c21fcec5..e65a14688c 100644
--- a/files/bn/mdn/community/index.html
+++ b/files/bn/orphaned/mdn/community/index.html
@@ -1,7 +1,8 @@
 ---
 title: যোগ দিন আমাদের দলে
-slug: MDN/Community
+slug: orphaned/MDN/Community
 translation_of: MDN/Community
+original_slug: MDN/Community
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/bn/mdn/community/whats_happening/index.html b/files/bn/orphaned/mdn/community/whats_happening/index.html
index a703e0481b..79cfe91a89 100644
--- a/files/bn/mdn/community/whats_happening/index.html
+++ b/files/bn/orphaned/mdn/community/whats_happening/index.html
@@ -1,7 +1,8 @@
 ---
 title: চলমান ঘটনাবলি সম্পর্কে জানুন
-slug: MDN/Community/Whats_happening
+slug: orphaned/MDN/Community/Whats_happening
 translation_of: MDN/Community/Whats_happening
+original_slug: MDN/Community/Whats_happening
 ---
 <div>{{MDNSidebar}}</div><p>MDN তৈরি হয়েছে মোজিলার <a href="https://wiki.mozilla.org/Engagement/Developer_Engagement" title="https://wiki.mozilla.org/Engagement/Developer_Engagement">Websites and Developer Engagement</a> কমিউনিটির দ্বারা। নিচে কিছু রাস্তা বলে দেয়া আছে যার মাধ্যমে আমরা কি করছি, সে সম্পর্কে তথ্য ভাগাভাগি করি।</p>
 <h3 id="ব্লগ">ব্লগ</h3>
diff --git a/files/bn/mdn/contribute/howto/create_an_mdn_account/index.html b/files/bn/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
index 7bc9d904ae..e28ffb74b8 100644
--- a/files/bn/mdn/contribute/howto/create_an_mdn_account/index.html
+++ b/files/bn/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
@@ -1,7 +1,8 @@
 ---
 title: যেভাবে MDN এ অ্যাকাউন্ট তৈরি করবো
-slug: MDN/Contribute/Howto/Create_an_MDN_account
+slug: orphaned/MDN/Contribute/Howto/Create_an_MDN_account
 translation_of: MDN/Contribute/Howto/Create_an_MDN_account
+original_slug: MDN/Contribute/Howto/Create_an_MDN_account
 ---
 <div>{{MDNSidebar}}</div><p>এভাবে আমরা MDN এ একটি অ্যাকাউন্ট তৈরি করবোঃ</p>
 <ol style="list-style-type: -moz-bengali; list-style-type: bengali;">
diff --git a/files/bn/tools/ত্রিমাত্রিক_দর্শন/index.html b/files/bn/tools/3d_view/index.html
index e1dfb87617..11f4e45e98 100644
--- a/files/bn/tools/ত্রিমাত্রিক_দর্শন/index.html
+++ b/files/bn/tools/3d_view/index.html
@@ -1,7 +1,8 @@
 ---
 title: ত্রিমাত্রিক দর্শন
-slug: Tools/ত্রিমাত্রিক_দর্শন
+slug: Tools/3D_View
 translation_of: Tools/3D_View
+original_slug: Tools/ত্রিমাত্রিক_দর্শন
 ---
 <div>{{ToolsSidebar}}</div><p>{{ fx_minversion_header("11") }}</p>
 
diff --git a/files/bn/web/html/canvas/index.html b/files/bn/web/api/canvas_api/index.html
index b64f663d74..57707b86b6 100644
--- a/files/bn/web/html/canvas/index.html
+++ b/files/bn/web/api/canvas_api/index.html
@@ -1,7 +1,8 @@
 ---
 title: ক্যানভাস
-slug: Web/HTML/Canvas
+slug: Web/API/Canvas_API
 translation_of: Web/API/Canvas_API
+original_slug: Web/HTML/Canvas
 ---
 <p> <a href="/bn-BD/docs/HTML/HTML5" title="/bn-BD/docs/HTML/HTML5">HTML5</a> এ যুক্ত <strong>HTML {{HTMLElement("canvas")}} এলিমেন্টটি</strong> ব্যবহার করে স্ক্রিপ্টিংয়ের (সাধারণত <a href="/bn-BD/docs/JavaScript" title="JavaScript">জাভাস্ক্রিপ্ট</a>) সাহায্যে গ্রাফিক্স আঁকা যায়। উদাহরণস্বরুপ, এটি গ্রাফিক্স আঁকা, ছবির কম্পোজিশন তৈরি করা, অ্যানিমেশন তৈরি করা অথবা এমনি রিয়েল-টাইম ভিডিও রেন্ডারিং অথবা প্রসেসিংয়ের কাজেও ব্যবহার করা যায়।</p>
 <p><code>&lt;canvas&gt;</code> এর জন্য মোজিলা অ্যাপ্লিকেশনসমূহ সাপোর্ট পাওয়া শুরু করেছে গিকো ১.৮ (বা <a href="/bn-BD/docs/Firefox_1.5_for_developers" title="Firefox_1.5_for_developers">ফায়ারফক্স ১.৫</a>) থেকে। মূলত এ্যাপল তাদের <a class="external" href="http://www.apple.com/macosx/features/dashboard/">ড্যাশবোর্ড</a> এবং সাফারির জন্য এলিমেন্টটি প্রকাশ করে। ইন্টারনেট এক্সপ্লোরার ৯ ভার্সন থেকে <code>&lt;canvas&gt;</code> সাপোর্ট করে; ইন্টারনেট এক্সপ্লোরারের পুরনো সংস্করণের জন্য গুগলের <a class="external" href="http://excanvas.sourceforge.net/">Explorer Canvas</a> প্রজেক্টের একটি স্ক্রিপ্ট যুক্ত করে কার্যকরভাবে <code>&lt;canvas&gt;</code> এর সাপোর্ট যোগ করা যায়। গুগল ক্রোম এবং অপেরা ৯ <code>&lt;canvas&gt;</code> ক্যানভাস সাপোর্ট করে।</p>
diff --git a/files/bn/web/guide/html/canvas_tutorial/index.html b/files/bn/web/api/canvas_api/tutorial/index.html
index 2118fa3c97..1b898bc440 100644
--- a/files/bn/web/guide/html/canvas_tutorial/index.html
+++ b/files/bn/web/api/canvas_api/tutorial/index.html
@@ -1,9 +1,10 @@
 ---
 title: ক্যানভাস টিউটোরিয়াল
-slug: Web/Guide/HTML/Canvas_tutorial
+slug: Web/API/Canvas_API/Tutorial
 tags:
   - NeedsReview
 translation_of: Web/API/Canvas_API/Tutorial
+original_slug: Web/Guide/HTML/Canvas_tutorial
 ---
 <p><a href="/en-US/docs/HTML/Canvas" title="HTML/Canvas"><img alt="" src="https://mdn.mozillademos.org/files/257/Canvas_tut_examples.jpg" style="width: 200px; height: 450px; float: right;"></a></p>
 <p><a href="/en-US/docs/HTML/Canvas" title="HTML/Canvas"><strong><code>&lt;canvas&gt;</code></strong></a> হচ্ছে একটি <a href="/en-US/docs/HTML" title="HTML">HTML</a> element যেটা স্ক্রিপ্টিং (সাধারণত <a href="/en-US/docs/JavaScript" title="JavaScript">JavaScript</a> ) ব্যবহার করে  গ্রাফিক্স আঁকার জন্য ব্যবহার করা হয় । উদাহরণস্বরূপ  গ্রাফ আঁকতে, ছবি কম্পোজিশন অথবা সাধারন ( তবে<a href="/en-US/docs/HTML/Canvas/A_Basic_RayCaster" title="A_Basic_RayCaster"> বেশি সাধারন নয় </a>) অ্যানিমেশন তৈরি করতে এটি ব্যবহার করা হয় । ডানপাশের ছবিতে <code>&lt;canvas&gt;</code> প্রয়োগ করে কিছু উদাহরণ দেওয়া হয়েছে যা আমরা পরে এর টিউটোরিয়াল এ দেখবো।</p>
diff --git a/files/bn/web/html/focus_management_in_html/index.html b/files/bn/web/api/document/hasfocus/index.html
index adbe5e1e9b..5942e02118 100644
--- a/files/bn/web/html/focus_management_in_html/index.html
+++ b/files/bn/web/api/document/hasfocus/index.html
@@ -1,8 +1,9 @@
 ---
 title: Focus management in HTML
-slug: Web/HTML/Focus_management_in_HTML
+slug: Web/API/Document/hasFocus
 translation_of: Web/API/Document/hasFocus
 translation_of_original: Web/HTML/Focus_management_in_HTML
+original_slug: Web/HTML/Focus_management_in_HTML
 ---
 <p>এইচটিএমএল৫ এর ওয়ার্কিং ড্রাফট, <code><a href="/en-US/docs/Web/API/Document/activeElement">একটিভআলিমেন্ত</a></code> ডোম অ্যাট্রিবিউট এবং <code><a href="/en-US/docs/Web/API/Document/hasFocus">হেজফোকাস()</a></code> ডোম মেথড প্রোগ্রামারকে ইউজার এর কারনে পেজ এর ইন্টারআক্তিভিটিতে আরও ভালো নিয়ন্ত্রণ করার ক্ষমতা দেয়। উদাহরণস্বরূপ, দুইটিকে পরিসংখ্যান এর সাধারণ উদ্দেশে ব্যাবহার করা যায়, একটি পেজ এর কিছু লিংকের ক্লিক সংখ্যা বের করা,একটি এলিমেন্তের উপর ফোকাসের সময় বের করা, এবং আরও অনেক।অতিরিক্ত, আজাক্স টেকনোলজির সাহায্যে, সার্ভারের রিকুস্তের সংখ্যা কমানো যায় যা ইউজার এবং পেজ এর লেআউট এর উপর নির্ভর করে।</p>
 
diff --git a/files/bn/dom/index.html b/files/bn/web/api/document_object_model/index.html
index 07bef2b618..2a99d1e376 100644
--- a/files/bn/dom/index.html
+++ b/files/bn/web/api/document_object_model/index.html
@@ -1,6 +1,6 @@
 ---
 title: ডকুমেন্ট অবজেক্ট মডেল (DOM)
-slug: DOM
+slug: Web/API/Document_Object_Model
 tags:
   - DOM
   - NeedsTranslation
@@ -8,6 +8,7 @@ tags:
   - TopicStub
 translation_of: Web/API/Document_Object_Model
 translation_of_original: DOM
+original_slug: DOM
 ---
 <div class="geckoVersionNote">
  <div class="callout-box">
diff --git a/files/bn/web/guide/api/webrtc/index.html b/files/bn/web/api/webrtc_api/index.html
index 48a47d8aa1..e1254a3c49 100644
--- a/files/bn/web/guide/api/webrtc/index.html
+++ b/files/bn/web/api/webrtc_api/index.html
@@ -1,6 +1,6 @@
 ---
 title: ওয়েব আরটিসি (WebRTC)
-slug: Web/Guide/API/WebRTC
+slug: Web/API/WebRTC_API
 tags:
   - এপিআই
   - ওয়েব আরটিসি
@@ -8,6 +8,7 @@ tags:
   - ল্যান্ডিং
 translation_of: Web/API/WebRTC_API
 translation_of_original: Web/Guide/API/WebRTC
+original_slug: Web/Guide/API/WebRTC
 ---
 <p><strong>WebRTC</strong> (যেখানে RTC এর পূর্ণরুপ Real-Time Communications) হল একটি প্রযুক্তি যা একাধিক ব্রাউজারের মধ্যে ব্রাউজার-ব্রাউজার অডিও/ভিডিও স্ট্রিমিং কিংবা ডাটা শেয়ারিং সুবিধা প্রদান করে থাকে। WebRTC এর সাহায্যে কোনরূপ প্লাগ-ইন বা এক্সটেনশন ব্যবহার ছাড়াই স্ট্যান্ডার্ড ওয়েব এপিআই এর সাহায্যে টেলিকনফারেন্সিং কিংবা ডাটা শেয়ারিং সম্ভব।</p>
 
diff --git a/files/bn/web/guide/গ্রাফিক্স/index.html b/files/bn/web/guide/graphics/index.html
index fdf50fc2b7..7d9a685af2 100644
--- a/files/bn/web/guide/গ্রাফিক্স/index.html
+++ b/files/bn/web/guide/graphics/index.html
@@ -1,9 +1,10 @@
 ---
 title: গ্রাফিক্স অন দি ওয়েব
-slug: Web/Guide/গ্রাফিক্স
+slug: Web/Guide/Graphics
 tags:
   - NeedsReview
 translation_of: Web/Guide/Graphics
+original_slug: Web/Guide/গ্রাফিক্স
 ---
 <p><span id="result_box" lang="bn"><span class="hps">আধুনিক ওয়েব</span> <span class="hps">সাইট এবং</span> <span class="hps">অ্যাপ্লিকেশনে</span> <span class="hps">প্রায়ই</span> <span class="hps">গ্রাফিক্স</span> <span class="hps">উপস্থাপন</span> <span class="hps">প্রয়োজন পরে। </span></span><span id="result_box" lang="bn"><span class="hps">{{HTMLElement("img")}} উপাদান <span id="result_box" lang="bn"><span class="hps">ব্যবহার করে </span></span><span id="result_box" lang="bn"><span class="hps">সহজে</span>ই </span>স্ট্যাটিক</span> <span class="hps">ইমেজ</span> <span class="hps">প্রদর্শিত করা</span></span><span lang="bn"><span class="hps"> </span><span class="hps">যায়, অথবা</span></span> {{cssxref("background-image")}} প্রোপার্টি <span id="result_box" lang="bn"><span class="hps">ব্যবহার করে</span> <span class="hps">এইচটিএমএল</span> <span class="hps">উপাদানের</span> <span class="hps">পটভূমি</span> <span class="hps">নির্ধারণ করা যায়।</span></span></p>
 <p><span class="short_text" id="result_box" lang="bn"><span class="hps">আপনি</span> <span class="hps">প্রায়ই</span> <span class="hps">অন</span>-দা-ফ্লাই  <span class="hps">গ্রাফিক্স</span> <span class="hps">নির্মাণ করতে</span> <span class="hps">চান</span></span>, অথবা ঘটনার পরে ছবি প্রদর্শন করতে চান। এই নিবন্ধনটি আপনাকে সাহায্য করবে কিভাবে আপনি তা সম্পন্ন করতে পারেন।</p>
diff --git a/files/bn/web/guide/html/content_editable/index.html b/files/bn/web/guide/html/editable_content/index.html
index 0e8770f603..6433ee1325 100644
--- a/files/bn/web/guide/html/content_editable/index.html
+++ b/files/bn/web/guide/html/editable_content/index.html
@@ -1,9 +1,10 @@
 ---
 title: Content Editable
-slug: Web/Guide/HTML/Content_Editable
+slug: Web/Guide/HTML/Editable_content
 tags:
   - NeedsReview
 translation_of: Web/Guide/HTML/Editable_content
+original_slug: Web/Guide/HTML/Content_Editable
 ---
 <p><span class="seoSummary">HTML5 এ যেকোনো অংশ পরিবর্তনীয়। কিছু জাভাস্ক্রিপ্ট ইভেন্ট হ্যান্ডলার ব্যবহার করে আপনি একটি ওয়েব পেজ একটি সম্পূর্ণ এবং দ্রুত rich-text editor এ রুপান্তর করতে পারবেন । এই অনুচ্ছেদ আপনাকে এর কার্যকারিতা সম্পর্কে কিছু তথ্য প্রদান করবে।</span></p>
 <h2 id="সামঞ্জস্যতা"><span class="short_text" id="result_box" lang="bn"><span class="hps">সামঞ্জস্যতা</span></span></h2>
diff --git a/files/bn/html/html5/index.html b/files/bn/web/guide/html/html5/index.html
index bc45480642..0f9c06003d 100644
--- a/files/bn/html/html5/index.html
+++ b/files/bn/web/guide/html/html5/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTML5
-slug: HTML/HTML5
+slug: Web/Guide/HTML/HTML5
 tags:
   - Guide
   - HTML
@@ -10,6 +10,7 @@ tags:
   - Web
   - Web Development
 translation_of: Web/Guide/HTML/HTML5
+original_slug: HTML/HTML5
 ---
 <p><span class="seoSummary"><a href="/bn-BD/docs/HTML" title="HTML">HTML</a> বলতে যা বুঝায় </span><span class="seoSummary"><strong>HTML5</strong>  তার সর্বাধুনিক বিবর্তন</span><span class="seoSummary">। </span>বিষয়টি দুইটি ভিন্ন ধারনা কে প্রতিনিধিত্ব করে :</p>
 
diff --git a/files/bn/html/html5/introduction_to_html5/index.html b/files/bn/web/guide/html/html5/introduction_to_html5/index.html
index bb65db9a7f..18823a0c6c 100644
--- a/files/bn/html/html5/introduction_to_html5/index.html
+++ b/files/bn/web/guide/html/html5/introduction_to_html5/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTML5 এ হাতেখড়ি
-slug: HTML/HTML5/Introduction_to_HTML5
+slug: Web/Guide/HTML/HTML5/Introduction_to_HTML5
 tags:
   - Guide
   - HTML
@@ -9,6 +9,7 @@ tags:
   - Web
   - গাইড
 translation_of: Web/Guide/HTML/HTML5/Introduction_to_HTML5
+original_slug: HTML/HTML5/Introduction_to_HTML5
 ---
 <p><span id="result_box" lang="bn"><span class="hps">HTML এর</span> <span class="hps">পঞ্চম</span> <span class="hps">ও </span><span class="hps">সর্বশেষ</span> <span class="hps">সংস্করণ <a class="external" href="http://www.whatwg.org/specs/web-apps/current-work/" title="http://www.whatwg.org/specs/web-apps/current-work/">HTML5</a></span></span>। <span id="result_box" lang="bn"><span class="hps">এর</span> নতুন কিছু ফিচার রয়েছে যেমন শুধু <span class="hps">রিচ</span> <span class="hps">মিডিয়া</span>ই <span class="hps">সমর্থন</span> <span class="hps">করা, ওয়েব </span></span><span id="result_box" lang="bn"><span class="hps">এপ্লিকেশন তৈরি করা এখন আরও সহজ। এসব ওয়েব এপ্লিকেশন ব্যবহারকীর সাথে ইন্টার-এক্ট করতে পারে, ব্যবহারকারীর কম্পিউটারের ডেটা নিয়ে কাজ করতে পারে, সার্ভারের সাথে যোগাযোগ </span></span>করতে পারে আগের থেকে অনেক কার্যকরভাবে।</p>
 <p><span id="result_box" lang="bn"><span class="hps">HTML5</span> <span class="hps">এখনও</span> ডেভেলপ<span class="hps"> হচ্ছে</span><span>, সে কারণে</span> এখনো এর নির্দেশিকায় টুকটাক পরিবর্তন চলছে<span>।</span></span> <span id="result_box" lang="bn"><span class="hps">এখনো</span> <span class="hps">সব</span> <span class="hps">ব্রাউজারে সব ফিচার চলে না</span><span class="hps">।</span></span> যাইহোক, <em>গেকো</em> এবং তার এক্সটেনশন, ফায়ারফক্স খুব ভালভাবেই HTML5 সমর্থন করে, এবং এর আরও ফিচার সমর্থনের কাজ চলছে। <span id="result_box" lang="bn"><span class="hps">গেকো</span> <span class="hps">১.৮.১</span> <span id="result_box" lang="bn"><span class="hps">সংস্করণ</span></span> <span class="hps">থেকে HTML5 এর</span> ফিচার <span class="hps">সমর্থন করা</span> <span class="hps">শুরু করেছে। </span></span>গেকো বর্তমানে HTML5 এর কি কি ফিচার সমর্থন করে তা <a href="/bn/HTML/HTML5" title="en/HTML/HTML5">HTML5 এর মুল</a><a href="/bn-BD/HTML/HTML5"> পেজে </a> জানতে পারেন। অন্যান্য ব্রাউজারে HTML5 সাপোর্ট করে কি না, তা বিস্তারিত জানতে <a class="external" href="http://caniuse.com/#cats=HTML5" title="http://caniuse.com/#cats=HTML5">CanIUse</a> ওয়েবসাইটে যেতে পারেন।</p>
diff --git a/files/bn/web/html/cors_settings_attributes/index.html b/files/bn/web/html/attributes/crossorigin/index.html
index 4888d9d63c..3290df0f0a 100644
--- a/files/bn/web/html/cors_settings_attributes/index.html
+++ b/files/bn/web/html/attributes/crossorigin/index.html
@@ -1,9 +1,10 @@
 ---
 title: সি ও আর এস বৈশিষ্ট্যাবলী সেটিংস
-slug: Web/HTML/CORS_settings_attributes
+slug: Web/HTML/Attributes/crossorigin
 tags:
   - এইচ টি এম এল
 translation_of: Web/HTML/Attributes/crossorigin
+original_slug: Web/HTML/CORS_settings_attributes
 ---
 <p><span class="seoSummary"> </span></p>
 
diff --git a/files/bn/web/javascript/ভাষার_রিসোর্স/index.html b/files/bn/web/javascript/language_resources/index.html
index c539ad7321..4aed82dadb 100644
--- a/files/bn/web/javascript/ভাষার_রিসোর্স/index.html
+++ b/files/bn/web/javascript/language_resources/index.html
@@ -1,11 +1,12 @@
 ---
 title: জাভাস্কিপ্ট ভাষার রিসোর্স
-slug: Web/JavaScript/ভাষার_রিসোর্স
+slug: Web/JavaScript/Language_Resources
 tags:
   - JavaScript
   - JavaScript Language Resource
   - জাভাস্ক্রিপ্ট
 translation_of: Web/JavaScript/Language_Resources
+original_slug: Web/JavaScript/ভাষার_রিসোর্স
 ---
 <div>{{JsSidebar}}</div>
 
diff --git a/files/ca/_redirects.txt b/files/ca/_redirects.txt
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     "contributors": [
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       "llue"
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     "contributors": [
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-      "enTropy",
-      "Sheppy"
+      "SphinxKnight",
+      "kdex",
+      "fscholz"
     ]
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     "contributors": [
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-      "enTropy"
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-    "modified": "2019-03-23T22:44:04.496Z",
+  "Web/JavaScript/Reference": {
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     "contributors": [
-      "enTropy"
+      "enTropy",
+      "teoli",
+      "JordiGuilleumes"
     ]
   },
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     "modified": "2019-03-23T22:36:05.123Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/every": {
+  "Web/JavaScript/Reference/Global_Objects/Array/every": {
     "modified": "2019-03-23T22:37:52.531Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/fill": {
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     "contributors": [
       "SphinxKnight",
       "enTropy"
     ]
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+  "Web/JavaScript/Reference/Global_Objects/Array/filter": {
     "modified": "2019-03-23T22:41:52.655Z",
     "contributors": [
       "adriaroms",
@@ -3372,67 +3269,74 @@
       "enTropy"
     ]
   },
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     "contributors": [
       "enTropy"
     ]
   },
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     "contributors": [
       "enTropy"
     ]
   },
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     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/includes": {
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     "contributors": [
       "enTropy"
     ]
   },
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+  "Web/JavaScript/Reference/Global_Objects/Array": {
+    "modified": "2019-03-23T22:47:17.387Z",
+    "contributors": [
+      "wbamberg",
+      "enTropy"
+    ]
+  },
+  "Web/JavaScript/Reference/Global_Objects/Array/indexOf": {
     "modified": "2019-03-23T22:35:51.226Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/isArray": {
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     "contributors": [
       "llue"
     ]
   },
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     "modified": "2019-07-09T09:44:57.379Z",
     "contributors": [
       "enTropy"
     ]
   },
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     "modified": "2019-03-23T22:36:08.512Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/lastIndexOf": {
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     "modified": "2019-03-23T22:35:49.922Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/length": {
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     "contributors": [
       "llue"
     ]
   },
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+  "Web/JavaScript/Reference/Global_Objects/Array/map": {
     "modified": "2019-03-23T22:44:32.320Z",
     "contributors": [
       "dsabalete",
@@ -3440,66 +3344,72 @@
       "llue"
     ]
   },
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     "contributors": [
       "SphinxKnight",
       "llue"
     ]
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     "contributors": [
       "enTropy"
     ]
   },
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     "contributors": [
       "enTropy"
     ]
   },
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     "modified": "2019-03-23T22:45:57.375Z",
     "contributors": [
       "ibesora",
       "enTropy"
     ]
   },
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+    "contributors": [
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+    ]
+  },
+  "Web/JavaScript/Reference/Global_Objects/Array/reverse": {
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     "contributors": [
       "llue"
     ]
   },
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     "contributors": [
       "enTropy"
     ]
   },
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     "contributors": [
       "ibesora",
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/Array/some": {
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     "modified": "2020-09-18T06:02:41.977Z",
     "contributors": [
       "carmenansio",
       "enTropy"
     ]
   },
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     "contributors": [
       "ricardbarnes",
       "enTropy"
     ]
   },
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+  "Web/JavaScript/Reference/Global_Objects/Boolean": {
     "modified": "2019-03-23T22:58:34.517Z",
     "contributors": [
       "wbamberg",
@@ -3507,660 +3417,583 @@
       "enTropy"
     ]
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-    "contributors": [
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-      "enTropy"
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     "contributors": [
       "teoli",
       "enTropy"
     ]
   },
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     "contributors": [
       "teoli",
       "enTropy"
     ]
   },
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     "modified": "2019-03-23T22:58:36.167Z",
     "contributors": [
       "teoli",
       "enTropy"
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-      "teoli",
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-    "contributors": [
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-    ]
-  },
-  "Web/JavaScript/Referencia/Objectes_globals/Date/getDate": {
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     "contributors": [
       "enTropy"
     ]
   },
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     "contributors": [
       "teoli",
       "enTropy"
     ]
   },
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     "contributors": [
       "teoli",
       "enTropy"
     ]
   },
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     "contributors": [
       "teoli",
       "enTropy"
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   },
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     "contributors": [
       "teoli",
       "enTropy"
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   },
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     "contributors": [
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       "enTropy"
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     "contributors": [
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       "enTropy"
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     "contributors": [
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     "contributors": [
       "enTropy"
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   },
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     "contributors": [
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   },
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     "contributors": [
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   },
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     "contributors": [
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   },
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     "contributors": [
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   },
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     "contributors": [
       "enTropy"
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   },
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     "modified": "2019-03-23T22:50:00.925Z",
     "contributors": [
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     ]
   },
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     "contributors": [
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@@ -4168,133 +4001,190 @@
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@@ -4302,16 +4192,15 @@
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@@ -4319,402 +4208,384 @@
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-  "Web/JavaScript/Referencia/Objectes_globals/String/toLocaleUpperCase": {
+  "Web/JavaScript/Reference/Global_Objects/String/toLocaleUpperCase": {
     "modified": "2019-03-23T22:50:21.889Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/String/toLowerCase": {
+  "Web/JavaScript/Reference/Global_Objects/String/toLowerCase": {
     "modified": "2019-03-23T22:50:11.452Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/String/toString": {
+  "Web/JavaScript/Reference/Global_Objects/String/toString": {
     "modified": "2019-03-23T22:47:22.295Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/String/toUpperCase": {
+  "Web/JavaScript/Reference/Global_Objects/String/toUpperCase": {
     "modified": "2019-03-23T22:50:17.891Z",
     "contributors": [
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/SyntaxError": {
-    "modified": "2019-03-23T22:47:51.903Z",
+  "Web/JavaScript/Reference/Global_Objects/String/Trim": {
+    "modified": "2019-03-23T22:47:13.066Z",
     "contributors": [
-      "llue"
+      "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/SyntaxError/prototype": {
-    "modified": "2019-03-23T22:47:20.553Z",
+  "Web/JavaScript/Reference/Global_Objects/String/trimStart": {
+    "modified": "2019-03-23T22:47:12.920Z",
     "contributors": [
-      "llue"
+      "teoli",
+      "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/null": {
-    "modified": "2020-03-12T19:40:31.685Z",
+  "Web/JavaScript/Reference/Global_Objects/String/trimEnd": {
+    "modified": "2019-03-23T22:47:06.878Z",
     "contributors": [
       "teoli",
-      "Sheppy",
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/parseFloat": {
-    "modified": "2020-03-12T19:42:39.159Z",
+  "Web/JavaScript/Reference/Global_Objects/SyntaxError": {
+    "modified": "2019-03-23T22:47:51.903Z",
     "contributors": [
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Objectes_globals/undefined": {
+  "Web/JavaScript/Reference/Global_Objects/undefined": {
     "modified": "2020-03-12T19:40:33.567Z",
     "contributors": [
       "teoli",
@@ -4722,37 +4593,20 @@
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors": {
-    "modified": "2020-03-12T19:40:33.454Z",
-    "contributors": [
-      "teoli",
-      "enTropy",
-      "fscholz"
-    ]
-  },
-  "Web/JavaScript/Referencia/Operadors/Arithmetic_Operators": {
-    "modified": "2020-03-12T19:40:35.933Z",
+  "Web/JavaScript/Reference/Operators/Conditional_Operator": {
+    "modified": "2020-03-12T19:40:36.029Z",
     "contributors": [
       "teoli",
-      "enTropy",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/Bitwise_Operators": {
-    "modified": "2020-03-12T19:40:37.718Z",
-    "contributors": [
-      "teoli",
-      "enTropy"
-    ]
-  },
-  "Web/JavaScript/Referencia/Operadors/Conditional_Operator": {
-    "modified": "2020-03-12T19:40:36.029Z",
+  "Web/JavaScript/Reference/Operators/function": {
+    "modified": "2020-03-12T19:43:14.603Z",
     "contributors": [
-      "teoli",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/Grouping": {
+  "Web/JavaScript/Reference/Operators/Grouping": {
     "modified": "2020-03-12T19:40:35.580Z",
     "contributors": [
       "teoli",
@@ -4760,15 +4614,15 @@
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/Logical_Operators": {
-    "modified": "2020-03-12T19:40:33.485Z",
+  "Web/JavaScript/Reference/Operators": {
+    "modified": "2020-03-12T19:40:33.454Z",
     "contributors": [
       "teoli",
       "enTropy",
-      "llue"
+      "fscholz"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/Operador_Coma": {
+  "Web/JavaScript/Reference/Operators/Comma_Operator": {
     "modified": "2020-03-12T19:40:38.129Z",
     "contributors": [
       "teoli",
@@ -4776,20 +4630,14 @@
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/function": {
-    "modified": "2020-03-12T19:43:14.603Z",
-    "contributors": [
-      "llue"
-    ]
-  },
-  "Web/JavaScript/Referencia/Operadors/super": {
+  "Web/JavaScript/Reference/Operators/super": {
     "modified": "2020-03-12T19:40:57.165Z",
     "contributors": [
       "SphinxKnight",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/typeof": {
+  "Web/JavaScript/Reference/Operators/typeof": {
     "modified": "2020-03-12T19:40:39.552Z",
     "contributors": [
       "teoli",
@@ -4797,68 +4645,60 @@
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/void": {
+  "Web/JavaScript/Reference/Operators/void": {
     "modified": "2020-03-12T19:40:51.423Z",
     "contributors": [
       "teoli",
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Operadors/yield": {
+  "Web/JavaScript/Reference/Operators/yield": {
     "modified": "2020-03-12T19:40:38.885Z",
     "contributors": [
       "teoli",
       "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies": {
-    "modified": "2020-03-12T19:40:33.725Z",
-    "contributors": [
-      "fscholz",
-      "enTropy",
-      "schlagi123"
-    ]
-  },
-  "Web/JavaScript/Referencia/Sentencies/Buida": {
-    "modified": "2020-03-12T19:40:53.165Z",
+  "Web/JavaScript/Reference/Statements/block": {
+    "modified": "2020-03-12T19:40:58.782Z",
     "contributors": [
       "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/block": {
-    "modified": "2020-03-12T19:40:58.782Z",
+  "Web/JavaScript/Reference/Statements/break": {
+    "modified": "2020-03-12T19:42:37.121Z",
     "contributors": [
-      "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/break": {
-    "modified": "2020-03-12T19:42:37.121Z",
+  "Web/JavaScript/Reference/Statements/Empty": {
+    "modified": "2020-03-12T19:40:53.165Z",
     "contributors": [
+      "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/continue": {
+  "Web/JavaScript/Reference/Statements/continue": {
     "modified": "2020-03-12T19:42:36.256Z",
     "contributors": [
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/debugger": {
+  "Web/JavaScript/Reference/Statements/debugger": {
     "modified": "2020-03-12T19:42:42.043Z",
     "contributors": [
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/do...while": {
+  "Web/JavaScript/Reference/Statements/do...while": {
     "modified": "2020-03-12T19:42:35.370Z",
     "contributors": [
       "antoniomatt",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/export": {
+  "Web/JavaScript/Reference/Statements/export": {
     "modified": "2020-11-15T17:57:08.110Z",
     "contributors": [
       "marc.valerio",
@@ -4867,56 +4707,64 @@
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/for": {
-    "modified": "2020-03-12T19:40:55.949Z",
+  "Web/JavaScript/Reference/Statements/for...of": {
+    "modified": "2020-03-12T19:40:34.152Z",
     "contributors": [
+      "SphinxKnight",
       "fscholz",
-      "llue"
+      "enTropy"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/for...of": {
-    "modified": "2020-03-12T19:40:34.152Z",
+  "Web/JavaScript/Reference/Statements/for": {
+    "modified": "2020-03-12T19:40:55.949Z",
     "contributors": [
-      "SphinxKnight",
       "fscholz",
-      "enTropy"
+      "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/function": {
+  "Web/JavaScript/Reference/Statements/function": {
     "modified": "2020-03-12T19:40:57.798Z",
     "contributors": [
       "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/if...else": {
+  "Web/JavaScript/Reference/Statements/if...else": {
     "modified": "2020-03-12T19:40:53.418Z",
     "contributors": [
       "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/return": {
+  "Web/JavaScript/Reference/Statements": {
+    "modified": "2020-03-12T19:40:33.725Z",
+    "contributors": [
+      "fscholz",
+      "enTropy",
+      "schlagi123"
+    ]
+  },
+  "Web/JavaScript/Reference/Statements/return": {
     "modified": "2020-03-12T19:40:55.904Z",
     "contributors": [
       "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/throw": {
+  "Web/JavaScript/Reference/Statements/throw": {
     "modified": "2020-03-12T19:42:33.312Z",
     "contributors": [
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sentencies/while": {
+  "Web/JavaScript/Reference/Statements/while": {
     "modified": "2020-03-12T19:40:53.547Z",
     "contributors": [
       "fscholz",
       "llue"
     ]
   },
-  "Web/JavaScript/Referencia/Sobre": {
+  "Web/JavaScript/Reference/About": {
     "modified": "2020-03-12T19:38:14.941Z",
     "contributors": [
       "enTropy",
@@ -4924,76 +4772,228 @@
       "JordiGuilleumes"
     ]
   },
-  "Web/JavaScript/quant_a_JavaScript": {
-    "modified": "2020-07-27T11:53:21.427Z",
+  "Web/OpenSearch": {
+    "modified": "2019-01-16T15:50:29.790Z",
     "contributors": [
-      "joanpardo",
-      "enTropy"
+      "Toniher"
     ]
   },
-  "Web/Reference": {
-    "modified": "2019-03-23T22:22:23.982Z",
+  "conflicting/Web/Guide": {
+    "modified": "2019-03-23T23:33:13.846Z",
     "contributors": [
-      "Legioinvicta",
-      "andrealeone"
+      "caos30",
+      "ethertank"
     ]
   },
-  "Web/Reference/API": {
-    "modified": "2019-03-23T22:22:24.413Z",
+  "Web/Guide/Mobile": {
+    "modified": "2019-03-23T23:33:13.336Z",
+    "contributors": [
+      "caos30",
+      "wbamberg"
+    ]
+  },
+  "Web/Progressive_web_apps": {
+    "modified": "2019-03-23T23:33:17.529Z",
+    "contributors": [
+      "caos30"
+    ]
+  },
+  "Web/CSS/:is": {
+    "modified": "2019-03-23T22:21:40.467Z",
     "contributors": [
       "Legioinvicta"
     ]
   },
-  "Web/Tutorials": {
-    "modified": "2019-03-23T22:22:12.721Z",
+  "conflicting/Learn/CSS/Building_blocks": {
+    "modified": "2019-03-23T22:21:00.737Z",
     "contributors": [
       "Legioinvicta"
     ]
   },
-  "Web/XSLT": {
-    "modified": "2019-03-23T23:40:59.738Z",
+  "conflicting/Learn/CSS/Building_blocks/Cascade_and_inheritance": {
+    "modified": "2019-03-23T22:21:11.477Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/Building_blocks/Values_and_units": {
+    "modified": "2019-03-23T22:20:58.899Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps/How_CSS_works": {
+    "modified": "2019-03-23T22:21:14.792Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps/How_CSS_is_structured": {
+    "modified": "2019-03-23T22:20:58.263Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/CSS_layout": {
+    "modified": "2019-03-23T22:20:52.030Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/Styling_text/Fundamentals": {
+    "modified": "2019-03-23T22:21:09.957Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps": {
+    "modified": "2019-03-23T22:22:04.507Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "Learn/JavaScript/Client-side_web_APIs/Manipulating_documents": {
+    "modified": "2019-03-23T22:20:34.923Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/Styling_text/Styling_lists": {
+    "modified": "2019-03-23T22:21:00.463Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps/How_CSS_works_54b8e7ce45c74338181144ded4fbdccf": {
+    "modified": "2019-03-23T22:21:21.787Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/First_steps/How_CSS_works_9566880e82eb23b2f47f8821f75e0ab1": {
+    "modified": "2019-03-23T22:21:22.840Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/Building_blocks/Selectors": {
+    "modified": "2019-03-23T22:21:02.763Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "conflicting/Learn/CSS/Building_blocks/Styling_tables": {
+    "modified": "2019-03-23T22:20:47.336Z",
+    "contributors": [
+      "Legioinvicta"
+    ]
+  },
+  "Learn/JavaScript/Objects": {
+    "modified": "2020-03-12T19:40:42.090Z",
+    "contributors": [
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/DataView": {
+    "modified": "2019-03-23T22:46:15.196Z",
+    "contributors": [
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/EvalError": {
+    "modified": "2019-03-23T22:47:27.467Z",
+    "contributors": [
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Object": {
+    "modified": "2019-03-23T22:48:18.297Z",
+    "contributors": [
+      "enTropy"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/WeakMap": {
+    "modified": "2019-03-23T22:44:02.612Z",
+    "contributors": [
+      "SphinxKnight",
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/WeakSet": {
+    "modified": "2019-03-23T22:44:06.443Z",
+    "contributors": [
+      "SphinxKnight",
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Boolean": {
+    "modified": "2019-03-23T22:58:39.243Z",
     "contributors": [
-      "ExE-Boss",
       "teoli",
-      "Oriol"
+      "enTropy"
     ]
   },
-  "Web_Development": {
-    "modified": "2019-03-23T23:33:13.846Z",
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Date": {
+    "modified": "2019-03-23T22:57:58.782Z",
     "contributors": [
-      "caos30",
-      "ethertank"
+      "teoli",
+      "enTropy"
     ]
   },
-  "Web_Development/Mobile": {
-    "modified": "2019-03-23T23:33:13.336Z",
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Error": {
+    "modified": "2019-03-23T22:58:43.169Z",
     "contributors": [
-      "caos30",
-      "wbamberg"
+      "teoli",
+      "enTropy"
     ]
   },
-  "Web_Development/Mobile/A_hybrid_approach": {
-    "modified": "2019-03-23T23:33:18.345Z",
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Map": {
+    "modified": "2019-03-23T22:48:45.592Z",
     "contributors": [
-      "trevorh"
+      "SphinxKnight",
+      "enTropy"
     ]
   },
-  "Web_Development/Mobile/Mobile-friendliness": {
-    "modified": "2019-03-23T23:33:21.925Z",
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Number": {
+    "modified": "2019-03-23T22:50:16.328Z",
     "contributors": [
-      "caos30"
+      "enTropy"
     ]
   },
-  "Web_Development/Mobile/Responsive_design": {
-    "modified": "2019-03-23T23:33:17.529Z",
+  "conflicting/Web/JavaScript/Reference/Global_Objects/Set": {
+    "modified": "2019-03-23T22:48:42.404Z",
     "contributors": [
-      "caos30"
+      "SphinxKnight",
+      "enTropy"
     ]
   },
-  "Web_Development/Mobile/Separate_sites": {
-    "modified": "2019-03-23T23:33:19.296Z",
+  "conflicting/Web/JavaScript/Reference/Global_Objects/SyntaxError": {
+    "modified": "2019-03-23T22:47:20.553Z",
     "contributors": [
-      "trevorh"
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators": {
+    "modified": "2020-03-12T19:40:35.933Z",
+    "contributors": [
+      "teoli",
+      "enTropy",
+      "llue"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators_94c03c413a71df1ccff4c3ede275360c": {
+    "modified": "2020-03-12T19:40:37.718Z",
+    "contributors": [
+      "teoli",
+      "enTropy"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators_af596841c6a3650ee514088f0e310901": {
+    "modified": "2020-03-12T19:40:33.485Z",
+    "contributors": [
+      "teoli",
+      "enTropy",
+      "llue"
     ]
   }
 }
\ No newline at end of file
diff --git a/files/ca/web/guide/css/inici_en_css/cascada_i_herència/index.html b/files/ca/conflicting/learn/css/building_blocks/cascade_and_inheritance/index.html
index b7bf86a77f..738c16d558 100644
--- a/files/ca/web/guide/css/inici_en_css/cascada_i_herència/index.html
+++ b/files/ca/conflicting/learn/css/building_blocks/cascade_and_inheritance/index.html
@@ -1,16 +1,17 @@
 ---
 title: Cascada i herència
-slug: Web/Guide/CSS/Inici_en_CSS/Cascada_i_herència
+slug: conflicting/Learn/CSS/Building_blocks/Cascade_and_inheritance
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - NeedsBeginnerUpdate
   - NeedsUpdate
   - Web
 translation_of: Learn/CSS/Building_blocks/Cascade_and_inheritance
 translation_of_original: Web/Guide/CSS/Getting_started/Cascading_and_inheritance
+original_slug: Web/Guide/CSS/Inici_en_CSS/Cascada_i_herència
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/caixes/index.html b/files/ca/conflicting/learn/css/building_blocks/index.html
index 39d411bb19..b0105c59c4 100644
--- a/files/ca/web/guide/css/inici_en_css/caixes/index.html
+++ b/files/ca/conflicting/learn/css/building_blocks/index.html
@@ -1,6 +1,6 @@
 ---
 title: Caixes
-slug: Web/Guide/CSS/Inici_en_CSS/Caixes
+slug: conflicting/Learn/CSS/Building_blocks
 tags:
   - Basic
   - Beginner
@@ -8,12 +8,13 @@ tags:
   - CSS Borders
   - CSS Margin
   - CSS Padding
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - NeedsBeginnerUpdate
   - NeedsUpdate
   - Web
 translation_of: Learn/CSS/Building_blocks
 translation_of_original: Web/Guide/CSS/Getting_started/Boxes
+original_slug: Web/Guide/CSS/Inici_en_CSS/Caixes
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/selectors/index.html b/files/ca/conflicting/learn/css/building_blocks/selectors/index.html
index a3e8534ee5..3e3f5edc98 100644
--- a/files/ca/web/guide/css/inici_en_css/selectors/index.html
+++ b/files/ca/conflicting/learn/css/building_blocks/selectors/index.html
@@ -1,11 +1,11 @@
 ---
 title: Selectors
-slug: Web/Guide/CSS/Inici_en_CSS/Selectors
+slug: conflicting/Learn/CSS/Building_blocks/Selectors
 tags:
   - Beginner
   - CSS
   - CSS Selector
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - NeedsBeginnerUpdate
@@ -14,6 +14,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Building_blocks/Selectors
 translation_of_original: Web/Guide/CSS/Getting_started/Selectors
+original_slug: Web/Guide/CSS/Inici_en_CSS/Selectors
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/taules/index.html b/files/ca/conflicting/learn/css/building_blocks/styling_tables/index.html
index d7875ae370..7b09140c78 100644
--- a/files/ca/web/guide/css/inici_en_css/taules/index.html
+++ b/files/ca/conflicting/learn/css/building_blocks/styling_tables/index.html
@@ -1,10 +1,10 @@
 ---
 title: Taules
-slug: Web/Guide/CSS/Inici_en_CSS/Taules
+slug: conflicting/Learn/CSS/Building_blocks/Styling_tables
 tags:
   - CSS
   - CSS Tables
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -14,6 +14,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Building_blocks/Styling_tables
 translation_of_original: Web/Guide/CSS/Getting_started/Tables
+original_slug: Web/Guide/CSS/Inici_en_CSS/Taules
 ---
 <p>{{CSSTutorialTOC}}{{previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Layout", "Disseny")}}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/color/index.html b/files/ca/conflicting/learn/css/building_blocks/values_and_units/index.html
index ba607aab18..dc9e9a197e 100644
--- a/files/ca/web/guide/css/inici_en_css/color/index.html
+++ b/files/ca/conflicting/learn/css/building_blocks/values_and_units/index.html
@@ -1,10 +1,10 @@
 ---
 title: Color
-slug: Web/Guide/CSS/Inici_en_CSS/Color
+slug: conflicting/Learn/CSS/Building_blocks/Values_and_units
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - NeedsBeginnerUpdate
@@ -12,6 +12,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Introduction_to_CSS/Values_and_units#Colors
 translation_of_original: Web/Guide/CSS/Getting_started/Color
+original_slug: Web/Guide/CSS/Inici_en_CSS/Color
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/disseny/index.html b/files/ca/conflicting/learn/css/css_layout/index.html
index 28045a681d..b19a07ffe4 100644
--- a/files/ca/web/guide/css/inici_en_css/disseny/index.html
+++ b/files/ca/conflicting/learn/css/css_layout/index.html
@@ -1,12 +1,12 @@
 ---
 title: Disseny
-slug: Web/Guide/CSS/Inici_en_CSS/Disseny
+slug: conflicting/Learn/CSS/CSS_layout
 tags:
   - CSS
   - CSS Float
   - CSS Text Align
   - CSS Unit
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -16,6 +16,7 @@ tags:
   - Web
 translation_of: Learn/CSS/CSS_layout
 translation_of_original: Web/Guide/CSS/Getting_started/Layout
+original_slug: Web/Guide/CSS/Inici_en_CSS/Disseny
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/css_llegible/index.html b/files/ca/conflicting/learn/css/first_steps/how_css_is_structured/index.html
index 15b376dad0..d2b6959c85 100644
--- a/files/ca/web/guide/css/inici_en_css/css_llegible/index.html
+++ b/files/ca/conflicting/learn/css/first_steps/how_css_is_structured/index.html
@@ -1,9 +1,9 @@
 ---
 title: CSS llegible
-slug: Web/Guide/CSS/Inici_en_CSS/CSS_llegible
+slug: conflicting/Learn/CSS/First_steps/How_CSS_is_structured
 tags:
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - Intermediate
   - NeedsBeginnerUpdate
@@ -11,6 +11,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Introduction_to_CSS/Syntax#Beyond_syntax_make_CSS_readable
 translation_of_original: Web/Guide/CSS/Getting_started/Readable_CSS
+original_slug: Web/Guide/CSS/Inici_en_CSS/CSS_llegible
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/com_funciona_el_css/index.html b/files/ca/conflicting/learn/css/first_steps/how_css_works/index.html
index eb6512b8bb..067de9bb09 100644
--- a/files/ca/web/guide/css/inici_en_css/com_funciona_el_css/index.html
+++ b/files/ca/conflicting/learn/css/first_steps/how_css_works/index.html
@@ -1,16 +1,17 @@
 ---
 title: Com funciona el CSS
-slug: Web/Guide/CSS/Inici_en_CSS/Com_funciona_el_CSS
+slug: conflicting/Learn/CSS/First_steps/How_CSS_works
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - NeedsBeginnerUpdate
   - NeedsUpdate
   - Web
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/How_CSS_works
+original_slug: Web/Guide/CSS/Inici_en_CSS/Com_funciona_el_CSS
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/per_què_utilitzar_css/index.html b/files/ca/conflicting/learn/css/first_steps/how_css_works_54b8e7ce45c74338181144ded4fbdccf/index.html
index d3685309c7..99da18a2b6 100644
--- a/files/ca/web/guide/css/inici_en_css/per_què_utilitzar_css/index.html
+++ b/files/ca/conflicting/learn/css/first_steps/how_css_works_54b8e7ce45c74338181144ded4fbdccf/index.html
@@ -1,16 +1,18 @@
 ---
 title: Per què utilitzar CSS?
-slug: Web/Guide/CSS/Inici_en_CSS/Per_què_utilitzar_CSS
+slug: >-
+  conflicting/Learn/CSS/First_steps/How_CSS_works_54b8e7ce45c74338181144ded4fbdccf
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - NeedsBeginnerUpdate
   - Web
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/Why_use_CSS
+original_slug: Web/Guide/CSS/Inici_en_CSS/Per_què_utilitzar_CSS
 ---
 <p><span style="line-height: 1.5;">{{ CSSTutorialTOC() }}</span></p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/que_és_css/index.html b/files/ca/conflicting/learn/css/first_steps/how_css_works_9566880e82eb23b2f47f8821f75e0ab1/index.html
index 28db41fa98..5d4592efb8 100644
--- a/files/ca/web/guide/css/inici_en_css/que_és_css/index.html
+++ b/files/ca/conflicting/learn/css/first_steps/how_css_works_9566880e82eb23b2f47f8821f75e0ab1/index.html
@@ -1,16 +1,18 @@
 ---
 title: Que és CSS?
-slug: Web/Guide/CSS/Inici_en_CSS/Que_és_CSS
+slug: >-
+  conflicting/Learn/CSS/First_steps/How_CSS_works_9566880e82eb23b2f47f8821f75e0ab1
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - NeedsBeginnerUpdate
   - Web
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/What_is_CSS
+original_slug: Web/Guide/CSS/Inici_en_CSS/Que_és_CSS
 ---
 <div>{{CSSTutorialTOC}}</div>
 
diff --git a/files/ca/web/guide/css/inici_en_css/index.html b/files/ca/conflicting/learn/css/first_steps/index.html
index 8de66f308e..2f821fe1eb 100644
--- a/files/ca/web/guide/css/inici_en_css/index.html
+++ b/files/ca/conflicting/learn/css/first_steps/index.html
@@ -1,10 +1,10 @@
 ---
 title: Inici en CSS
-slug: Web/Guide/CSS/Inici_en_CSS
+slug: conflicting/Learn/CSS/First_steps
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - Needs
   - NeedsBeginnerUpdate
@@ -12,6 +12,7 @@ tags:
   - Web
 translation_of: Learn/CSS/First_steps
 translation_of_original: Web/Guide/CSS/Getting_started
+original_slug: Web/Guide/CSS/Inici_en_CSS
 ---
 <p>Aquest tutorial és una introducció a les característiques bàsiques i llenguatge (la sintaxi) per als <strong><a href="https://developer.mozilla.org/en-US/docs/Web/Guide/CSS">fulls d'estil en cascada</a></strong><span class="seoSummary"><a href="https://developer.mozilla.org/en-US/docs/Web/Guide/CSS"><strong>(Cascading Style Sheets)</strong></a> (CSS). </span>S'utilitza CSS per canviar l'aspecte d'un document estructurat, com ara una pàgina web. El tutorial també inclou exemples d'exercicis que podeu provar en el vostre ordinador per veure els efectes de les CSS i les característiques que funcionen en els navegadors moderns.</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/estils_de_text/index.html b/files/ca/conflicting/learn/css/styling_text/fundamentals/index.html
index a1a8c9364f..8561eb551c 100644
--- a/files/ca/web/guide/css/inici_en_css/estils_de_text/index.html
+++ b/files/ca/conflicting/learn/css/styling_text/fundamentals/index.html
@@ -1,11 +1,11 @@
 ---
 title: Estils de text
-slug: Web/Guide/CSS/Inici_en_CSS/Estils_de_text
+slug: conflicting/Learn/CSS/Styling_text/Fundamentals
 tags:
   - Beginner
   - CSS
   - CSS Fonts
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Guide
   - NeedsBeginnerUpdate
   - NeedsLiveSample
@@ -13,6 +13,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Styling_text/Fundamentals
 translation_of_original: Web/Guide/CSS/Getting_started/Text_styles
+original_slug: Web/Guide/CSS/Inici_en_CSS/Estils_de_text
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/llistes/index.html b/files/ca/conflicting/learn/css/styling_text/styling_lists/index.html
index a6bd0d31a1..7968e26f8b 100644
--- a/files/ca/web/guide/css/inici_en_css/llistes/index.html
+++ b/files/ca/conflicting/learn/css/styling_text/styling_lists/index.html
@@ -1,10 +1,10 @@
 ---
 title: Llistes
-slug: Web/Guide/CSS/Inici_en_CSS/Llistes
+slug: conflicting/Learn/CSS/Styling_text/Styling_lists
 tags:
   - Beginner
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -13,6 +13,7 @@ tags:
   - Web
 translation_of: Learn/CSS/Styling_text/Styling_lists
 translation_of_original: Web/Guide/CSS/Getting_started/Lists
+original_slug: Web/Guide/CSS/Inici_en_CSS/Llistes
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web_development/index.html b/files/ca/conflicting/web/guide/index.html
index ba6fb934f0..4debdf0059 100644
--- a/files/ca/web_development/index.html
+++ b/files/ca/conflicting/web/guide/index.html
@@ -1,12 +1,13 @@
 ---
 title: Desenvolupament web
-slug: Web_Development
+slug: conflicting/Web/Guide
 tags:
   - NeedsTranslation
   - TopicStub
   - Web Development
 translation_of: Web/Guide
 translation_of_original: Web_Development
+original_slug: Web_Development
 ---
 <p><strong>El desenvolupament web</strong> comprèn tots els aspectes de construir un portal o aplicació web.</p>
 <p>Aprèn a crear qualsevol cosa des d'una simple web fins a una web complexa i altament interactiva emprant les darreres tecnologies web  fullejant els articles que et mostrem aquí.</p>
diff --git a/files/ca/web/javascript/referencia/objectes_globals/boolean/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/boolean/index.html
index e0845eb102..1f032b041e 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/boolean/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/boolean/index.html
@@ -1,8 +1,9 @@
 ---
 title: Boolean.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Boolean
 translation_of: Web/JavaScript/Reference/Global_Objects/Boolean
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Boolean/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/prototype
 ---
 <div>{{JSRef("Global_Objects", "Boolean")}}</div>
 
diff --git a/files/ca/web/javascript/reference/global_objects/dataview/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/dataview/index.html
index ebd6cbe729..7f75592b39 100644
--- a/files/ca/web/javascript/reference/global_objects/dataview/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/dataview/index.html
@@ -1,8 +1,9 @@
 ---
 title: DataView.prototype
-slug: Web/JavaScript/Reference/Global_Objects/DataView/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/DataView
 translation_of: Web/JavaScript/Reference/Global_Objects/DataView
 translation_of_original: Web/JavaScript/Reference/Global_Objects/DataView/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/DataView/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/date/index.html
index 91e2dff38f..e9e2bb9c7d 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/date/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/date/index.html
@@ -1,8 +1,9 @@
 ---
 title: Date.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Date
 translation_of: Web/JavaScript/Reference/Global_Objects/Date
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Date/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/prototype
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/error/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/error/index.html
index 53e22669e9..96d7ea961e 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/error/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/error/index.html
@@ -1,8 +1,9 @@
 ---
 title: Error.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Error/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Error
 translation_of: Web/JavaScript/Reference/Global_Objects/Error
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Error/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Error/prototype
 ---
 <div>{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}}</div>
 
diff --git a/files/ca/web/javascript/reference/global_objects/evalerror/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/evalerror/index.html
index 5f83d25a6f..e058929546 100644
--- a/files/ca/web/javascript/reference/global_objects/evalerror/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/evalerror/index.html
@@ -1,8 +1,9 @@
 ---
 title: EvalError.prototype
-slug: Web/JavaScript/Reference/Global_Objects/EvalError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/EvalError
 translation_of: Web/JavaScript/Reference/Global_Objects/EvalError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/EvalError/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/EvalError/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/map/index.html
index 3a7508f042..bcab0afb8a 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/map/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/map/index.html
@@ -1,8 +1,9 @@
 ---
 title: Map.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Map/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Map
 translation_of: Web/JavaScript/Reference/Global_Objects/Map
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Map/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/number/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/number/index.html
index ae733e56ec..d5c2f282cd 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/number/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/number/index.html
@@ -1,8 +1,9 @@
 ---
 title: Number.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Number/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Number
 translation_of: Web/JavaScript/Reference/Global_Objects/Number
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Number/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Number/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/reference/global_objects/object/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/object/index.html
index 9451ccfefe..a5bfe248c9 100644
--- a/files/ca/web/javascript/reference/global_objects/object/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/object/index.html
@@ -1,8 +1,9 @@
 ---
 title: Object.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Object/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Object
 translation_of: Web/JavaScript/Reference/Global_Objects/Object
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Object/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Object/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/set/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/set/index.html
index 9d6f6e90ee..d4e6516f15 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/set/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/set/index.html
@@ -1,8 +1,9 @@
 ---
 title: Set.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Set/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Set
 translation_of: Web/JavaScript/Reference/Global_Objects/Set
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Set/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Set/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/syntaxerror/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/syntaxerror/index.html
index 35aea642bd..e2641c4057 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/syntaxerror/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/syntaxerror/index.html
@@ -1,8 +1,9 @@
 ---
 title: SyntaxError.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/SyntaxError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/SyntaxError
 translation_of: Web/JavaScript/Reference/Global_Objects/SyntaxError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/SyntaxError/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/SyntaxError/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/reference/global_objects/weakmap/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/weakmap/index.html
index 40c3e72ff6..45313877ce 100644
--- a/files/ca/web/javascript/reference/global_objects/weakmap/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/weakmap/index.html
@@ -1,8 +1,9 @@
 ---
 title: WeakMap.prototype
-slug: Web/JavaScript/Reference/Global_Objects/WeakMap/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/WeakMap
 translation_of: Web/JavaScript/Reference/Global_Objects/WeakMap
 translation_of_original: Web/JavaScript/Reference/Global_Objects/WeakMap/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/WeakMap/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/reference/global_objects/weakset/prototype/index.html b/files/ca/conflicting/web/javascript/reference/global_objects/weakset/index.html
index 4e86935904..f602febbc9 100644
--- a/files/ca/web/javascript/reference/global_objects/weakset/prototype/index.html
+++ b/files/ca/conflicting/web/javascript/reference/global_objects/weakset/index.html
@@ -1,8 +1,9 @@
 ---
 title: WeakSet.prototype
-slug: Web/JavaScript/Reference/Global_Objects/WeakSet/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/WeakSet
 translation_of: Web/JavaScript/Reference/Global_Objects/WeakSet
 translation_of_original: Web/JavaScript/Reference/Global_Objects/WeakSet/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/WeakSet/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/operadors/arithmetic_operators/index.html b/files/ca/conflicting/web/javascript/reference/operators/index.html
index 9b6816c2d6..5f5221c244 100644
--- a/files/ca/web/javascript/referencia/operadors/arithmetic_operators/index.html
+++ b/files/ca/conflicting/web/javascript/reference/operators/index.html
@@ -1,8 +1,9 @@
 ---
 title: Operadors aritmètics
-slug: Web/JavaScript/Referencia/Operadors/Arithmetic_Operators
+slug: conflicting/Web/JavaScript/Reference/Operators
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Arithmetic_Operators
+original_slug: Web/JavaScript/Referencia/Operadors/Arithmetic_Operators
 ---
 <div>
 <div>{{jsSidebar("Operators")}}</div>
diff --git a/files/ca/web/javascript/referencia/operadors/bitwise_operators/index.html b/files/ca/conflicting/web/javascript/reference/operators_94c03c413a71df1ccff4c3ede275360c/index.html
index f7fbae7b47..73733f5188 100644
--- a/files/ca/web/javascript/referencia/operadors/bitwise_operators/index.html
+++ b/files/ca/conflicting/web/javascript/reference/operators_94c03c413a71df1ccff4c3ede275360c/index.html
@@ -1,8 +1,10 @@
 ---
 title: Operadors de bits
-slug: Web/JavaScript/Referencia/Operadors/Bitwise_Operators
+slug: >-
+  conflicting/Web/JavaScript/Reference/Operators_94c03c413a71df1ccff4c3ede275360c
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Bitwise_Operators
+original_slug: Web/JavaScript/Referencia/Operadors/Bitwise_Operators
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/operadors/logical_operators/index.html b/files/ca/conflicting/web/javascript/reference/operators_af596841c6a3650ee514088f0e310901/index.html
index 591e1fbc4f..3dc7af9899 100644
--- a/files/ca/web/javascript/referencia/operadors/logical_operators/index.html
+++ b/files/ca/conflicting/web/javascript/reference/operators_af596841c6a3650ee514088f0e310901/index.html
@@ -1,8 +1,10 @@
 ---
 title: Operadors Lògics
-slug: Web/JavaScript/Referencia/Operadors/Logical_Operators
+slug: >-
+  conflicting/Web/JavaScript/Reference/Operators_af596841c6a3650ee514088f0e310901
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Logical_Operators
+original_slug: Web/JavaScript/Referencia/Operadors/Logical_Operators
 ---
 <div>
 <div>{{jsSidebar("Operators")}}</div>
diff --git a/files/ca/glossary/atribut/index.html b/files/ca/glossary/attribute/index.html
index 8cb4795ca4..51b8de1e1c 100644
--- a/files/ca/glossary/atribut/index.html
+++ b/files/ca/glossary/attribute/index.html
@@ -1,11 +1,12 @@
 ---
 title: Atribut
-slug: Glossary/Atribut
+slug: Glossary/Attribute
 tags:
   - CodingScripting
   - Glossary
   - HTML
 translation_of: Glossary/Attribute
+original_slug: Glossary/Atribut
 ---
 <p>Un atribut estén una {{Glossary("etiqueta")}}, canviant el comportament de l'etiqueta o proporcionant metadades. Un atribut té sempre la forma nom = valor (donant l'identificador de l'atribut i el valor associat a l'atribut).</p>
 
diff --git a/files/ca/glossary/navegador/index.html b/files/ca/glossary/browser/index.html
index c3280d723b..a9780ffbf2 100644
--- a/files/ca/glossary/navegador/index.html
+++ b/files/ca/glossary/browser/index.html
@@ -1,10 +1,11 @@
 ---
 title: Navegador
-slug: Glossary/Navegador
+slug: Glossary/Browser
 tags:
   - Glossary
   - Navigation
 translation_of: Glossary/Browser
+original_slug: Glossary/Navegador
 ---
 <p>Un <em>navegador web</em> és un programa que recupera i mostra les pàgines de la {{Glossary("World Wide Web","Web")}}, i permet als usuaris accedir a més pàgines a través {{Glossary("hyperlink","hipervincles")}}.</p>
 
diff --git a/files/ca/glossary/caràcter/index.html b/files/ca/glossary/character/index.html
index 4c887673a2..957c03a534 100644
--- a/files/ca/glossary/caràcter/index.html
+++ b/files/ca/glossary/character/index.html
@@ -1,11 +1,12 @@
 ---
 title: Caràcter
-slug: Glossary/Caràcter
+slug: Glossary/Character
 tags:
   - CodingScripting
   - Glossary
   - strings
 translation_of: Glossary/Character
+original_slug: Glossary/Caràcter
 ---
 <p>Un <em>caràcter</em> és o bé un símbol (lletres, nombres, puntuació) o "control" no imprès (per exemple, retorn de carro o guió suau). {{Glossary("UTF-8")}} és el conjunt de caràcters més comuna i inclou els grafemes dels idiomes humans més populars.</p>
 
diff --git a/files/ca/glossary/codificació_de_caràcters/index.html b/files/ca/glossary/character_encoding/index.html
index 40179b5e89..15caec7d33 100644
--- a/files/ca/glossary/codificació_de_caràcters/index.html
+++ b/files/ca/glossary/character_encoding/index.html
@@ -1,10 +1,11 @@
 ---
 title: Codificació de caràcters
-slug: Glossary/Codificació_de_caràcters
+slug: Glossary/character_encoding
 tags:
   - Composing
   - Glossary
 translation_of: Glossary/character_encoding
+original_slug: Glossary/Codificació_de_caràcters
 ---
 <p>La codificació de caràcters proporciona un sistema de codificació dels caràcters específics en els diferents idiomes, per permetre que tots ells existeixen i poguin ser manejats consistentment en un sistema informàtic o entorn de programació.</p>
 
diff --git a/files/ca/glossary/funció/index.html b/files/ca/glossary/function/index.html
index d022b3196b..fa534958eb 100644
--- a/files/ca/glossary/funció/index.html
+++ b/files/ca/glossary/function/index.html
@@ -1,6 +1,6 @@
 ---
 title: Funció
-slug: Glossary/Funció
+slug: Glossary/Function
 tags:
   - CodingScripting
   - Glossary
@@ -8,6 +8,7 @@ tags:
   - Immediately Invoked Function Expressions (IIFE)
   - JavaScript
 translation_of: Glossary/Function
+original_slug: Glossary/Funció
 ---
 <p>Una <strong>funció</strong> és un fragment de codi que pot ser cridat per altres codis o per si mateix, o una {{Glossary("variable")}} que fa referència a la funció. Quan una funció es cridada, es passan {{Glossary("argument", "arguments")}} a la funció com a entrada, i opcionalment la funció pot retornar una sortida. Una funció de {{glossary("JavaScript")}} és també un {{glossary("objecte")}}.</p>
 
diff --git a/files/ca/glossary/adreça_ip/index.html b/files/ca/glossary/ip_address/index.html
index 8e855d55ac..67b49ef99f 100644
--- a/files/ca/glossary/adreça_ip/index.html
+++ b/files/ca/glossary/ip_address/index.html
@@ -1,12 +1,13 @@
 ---
 title: adreça IP (IP address)
-slug: Glossary/adreça_IP
+slug: Glossary/IP_Address
 tags:
   - Beginner
   - Glossary
   - Infrastructure
   - Web
 translation_of: Glossary/IP_Address
+original_slug: Glossary/adreça_IP
 ---
 <p>Una adreça IP (IP address) és un nombre assignat a cada dispositiu connectat a una xarxa que utilitza el protocol d'Internet.</p>
 
diff --git a/files/ca/glossary/mètode/index.html b/files/ca/glossary/method/index.html
index 65838733f8..da2077d87a 100644
--- a/files/ca/glossary/mètode/index.html
+++ b/files/ca/glossary/method/index.html
@@ -1,11 +1,12 @@
 ---
 title: Mètode
-slug: Glossary/Mètode
+slug: Glossary/Method
 tags:
   - CodingScripting
   - Glossary
   - JavaScript
 translation_of: Glossary/Method
+original_slug: Glossary/Mètode
 ---
 <p>Un <strong>mètode</strong> és una {{glossary("funció")}} que és {{glossary("propietat")}} d'un {{glossary("objecte")}}. Existeixen dos tipus de mètodes: <em>Mètode Instància</em> que estan incorporades en les tasques dutes a terme per una instància d'objecte, o <em>Mètodes Estàtics</em> que són tasques que es poden realitzar sense necessitat d'una instància d'objecte.</p>
 
diff --git a/files/ca/glossary/objecte/index.html b/files/ca/glossary/object/index.html
index 2688a42fed..09d2e7b145 100644
--- a/files/ca/glossary/objecte/index.html
+++ b/files/ca/glossary/object/index.html
@@ -1,12 +1,13 @@
 ---
 title: Objecte
-slug: Glossary/Objecte
+slug: Glossary/Object
 tags:
   - CodingScripting
   - Glossary
   - Intro
   - Object
 translation_of: Glossary/Object
+original_slug: Glossary/Objecte
 ---
 <p><a href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object">Objecte,</a> es refereix a una estructura de dades que conté dades i instruccions per treballar amb les dades. Els objectes a vegades es refereixen a les coses del món real, per exemple, un objecte cotxe o mapa en un joc de carreres. {{glossary("JavaScript")}}, Java, C ++, Python i Ruby són exemples de llenguatges de {{glossary("OOP", "programació orientada a objectes")}}.</p>
 
diff --git a/files/ca/glossary/referències_a_objectes/index.html b/files/ca/glossary/object_reference/index.html
index 1eca91862d..6cb976de0e 100644
--- a/files/ca/glossary/referències_a_objectes/index.html
+++ b/files/ca/glossary/object_reference/index.html
@@ -1,10 +1,11 @@
 ---
 title: Referències a objectes
-slug: Glossary/referències_a_objectes
+slug: Glossary/Object_reference
 tags:
   - CodingScripting
   - Glossary
 translation_of: Glossary/Object_reference
+original_slug: Glossary/referències_a_objectes
 ---
 <p>Un enllaç a un <strong>{{glossary("objecte")}}</strong>. Les referències a objectes poden usar-se exactament igual que els objectes vinculats.</p>
 
diff --git a/files/ca/glossary/primitiu/index.html b/files/ca/glossary/primitive/index.html
index c0e1cd1ff3..3916313c36 100644
--- a/files/ca/glossary/primitiu/index.html
+++ b/files/ca/glossary/primitive/index.html
@@ -1,11 +1,12 @@
 ---
 title: Primitiu
-slug: Glossary/Primitiu
+slug: Glossary/Primitive
 tags:
   - CodingScripting
   - Glossary
   - JavaScript
 translation_of: Glossary/Primitive
+original_slug: Glossary/Primitiu
 ---
 <p>Un <strong>primitiu</strong> (valor primitiu, tipus de dades primitiu) és una dada que no és un {{Glossary("objecte")}} i no té {{glossary("method","mètodes")}}. En {{Glossary("JavaScript")}}, hi ha 6 tipus de dades primitius: {{Glossary("string")}}, {{Glossary("number")}}, {{Glossary("boolean")}}, {{Glossary("null")}}, {{Glossary("undefined")}}, {{Glossary("symbol")}} (nou en {{Glossary("ECMAScript")}} 2015).</p>
 
diff --git a/files/ca/glossary/propietat/index.html b/files/ca/glossary/property/index.html
index a6b0970dd6..abe7a9ec32 100644
--- a/files/ca/glossary/propietat/index.html
+++ b/files/ca/glossary/property/index.html
@@ -1,10 +1,11 @@
 ---
 title: Propietat
-slug: Glossary/Propietat
+slug: Glossary/property
 tags:
   - Disambiguation
   - Glossary
 translation_of: Glossary/property
+original_slug: Glossary/Propietat
 ---
 <p><span id="result_box" lang="ca"><span>El terme</span> <span>propietat pot</span> <span>tenir diversos</span> <span>significats</span><span>, depenent del</span> <span>context.</span> <span>Es</span> <span>pot</span> <span>fer</span> <span>referència a</span><span>:</span></span></p>
 
diff --git a/files/ca/glossary/àmbit/index.html b/files/ca/glossary/scope/index.html
index 10707ada0b..a77a178a5c 100644
--- a/files/ca/glossary/àmbit/index.html
+++ b/files/ca/glossary/scope/index.html
@@ -1,10 +1,11 @@
 ---
 title: Àmbit
-slug: Glossary/Àmbit
+slug: Glossary/Scope
 tags:
   - CodingScripting
   - Glossary
 translation_of: Glossary/Scope
+original_slug: Glossary/Àmbit
 ---
 <p>El context actual d'{{glossary("execute","execució")}}. El context en el qual {{glossary("value","valors")}} i <strong>expressions</strong> són "visibles", o poden ser referenciats. Si una <strong>{{glossary("variable")}}</strong> o una altra expressió no és "en l'àmbit actual", llavors no està disponible per al seu ús. Els àmbits també es poden superposar en una jerarquia, de manera que els àmbits fills tinguin accés als àmbits dels pares, però no viceversa.</p>
 
diff --git a/files/ca/glossary/servidor/index.html b/files/ca/glossary/server/index.html
index cda9e7c3ea..c778694214 100644
--- a/files/ca/glossary/servidor/index.html
+++ b/files/ca/glossary/server/index.html
@@ -1,6 +1,6 @@
 ---
 title: Servidor
-slug: Glossary/Servidor
+slug: Glossary/Server
 tags:
   - Glossary
   - Infrastructure
@@ -8,6 +8,7 @@ tags:
   - Protocol
   - Server
 translation_of: Glossary/Server
+original_slug: Glossary/Servidor
 ---
 <p>Un servidor de maquinari és un equip compartit en una xarxa que proporciona serveis a clients. Un servidor de programari és un programa que proporciona serveis als programes de client.</p>
 
diff --git a/files/ca/web/html/optimizing_your_pages_for_speculative_parsing/index.html b/files/ca/glossary/speculative_parsing/index.html
index df48dec4e3..97d763bd02 100644
--- a/files/ca/web/html/optimizing_your_pages_for_speculative_parsing/index.html
+++ b/files/ca/glossary/speculative_parsing/index.html
@@ -1,7 +1,8 @@
 ---
 title: Optimizing your pages for speculative parsing
-slug: Web/HTML/Optimizing_your_pages_for_speculative_parsing
+slug: Glossary/speculative_parsing
 translation_of: Glossary/speculative_parsing
+original_slug: Web/HTML/Optimizing_your_pages_for_speculative_parsing
 ---
 <p><span id="result_box" lang="ca"><span class="alt-edited">Tradicionalment en els navegadors, </span></span>el analitzador sintàctic<span lang="ca"><span class="alt-edited"> d'HTML s'executa en el fil principal i s'ha bloquejat després d'una etiqueta <code>&lt;/script&gt;</code> fins que l'script s'ha recuperat de la xarxa i s'executat.</span></span> El analitzador sintàctic d'HTML en Firefox 4 i versions posteriors dóna suport a l'anàlisi especulativa fora del fil principal. A continuació s'analitza mentre que els scripts estan sent descarregats i s'executen. Com en Firefox 3.5 i 3.6, l'analitzador sintàctic d'HTML comença càrregues especulatives per als scripts, fulles d'estil i imatges que troba per davant en la seqüència. No obstant això, en Firefox 4 i posterior l'analitzador sintàctic d'HTML també executa l'algorisme de construcció de l'arbre HTML especulativament. <span id="result_box" lang="ca"><span>L'avantatge</span> <span>és que</span> <span>quan una</span> <span>especulació</span> <span>té</span> <span>èxit, no</span> <span>hi ha</span> <span>necessitat</span> <span>de reanàlisi</span> <span>de la</span> <span>part de l'arxiu</span> <span>d'entrada </span> <span>ja que </span></span><span lang="ca"><span>va ser</span> <span>analitzat</span> <span>a la recerca de</span> <span>scripts</span><span>, fulls</span> <span>d'estil</span> <span>i imatges</span></span>. L'inconvenient és que hi ha més feina perduda quan l'especulació falla.</p>
 
diff --git a/files/ca/glossary/etiqueta/index.html b/files/ca/glossary/tag/index.html
index e52b3f29a2..6b3860391e 100644
--- a/files/ca/glossary/etiqueta/index.html
+++ b/files/ca/glossary/tag/index.html
@@ -1,12 +1,13 @@
 ---
 title: Etiqueta
-slug: Glossary/Etiqueta
+slug: Glossary/Tag
 tags:
   - CodingScripting
   - Glossary
   - HTML
   - Intro
 translation_of: Glossary/Tag
+original_slug: Glossary/Etiqueta
 ---
 <p>En {{Glossary("HTML")}} una etiqueta s'utilitza per a la creació d'un {{Glossary("element")}}. El nom d'un element HTML és el nom usat en parèntesis angulars, com &lt;p&gt; per al paràgraf. Recordeu que el nom de l'etiqueta final és precedit per un caràcter de barra, "&lt;/p&gt;", i que en els elements buits l'etiqueta final no és necessària ni permesa. Si els atributs no s'esmenten, els valors per omissió s'utilitzen en cada cas.</p>
 
diff --git a/files/ca/glossary/valor/index.html b/files/ca/glossary/value/index.html
index 972fd4303d..352c8c4be0 100644
--- a/files/ca/glossary/valor/index.html
+++ b/files/ca/glossary/value/index.html
@@ -1,11 +1,12 @@
 ---
 title: Valor
-slug: Glossary/Valor
+slug: Glossary/Value
 tags:
   - CodingScripting
   - Glossary
   - NeedsContent
 translation_of: Glossary/Value
+original_slug: Glossary/Valor
 ---
 <p>En el context de les dades o un <strong>{{Glossary("Wrapper","contenidor")}}</strong> d'objectes al voltant d'aquestes dades, el valor és el <strong>{{Glossary("Primitive", "valor primitiu")}}</strong> que conté el contenidor d'objectes. En el context d'una <strong>{{Glossary("Variable","variable")}}</strong> or <strong>{{Glossary("Property","propietat")}}</strong>, el valor pot ser una primitiva o una <strong>{{Glossary("Object reference","referència d'objecte")}}</strong>.</p>
 
diff --git a/files/ca/learn/accessibility/que_es_accessibilitat/index.html b/files/ca/learn/accessibility/what_is_accessibility/index.html
index 6d8891a20c..5978594345 100644
--- a/files/ca/learn/accessibility/que_es_accessibilitat/index.html
+++ b/files/ca/learn/accessibility/what_is_accessibility/index.html
@@ -1,7 +1,8 @@
 ---
 title: Què és l'accessibilitat?
-slug: Learn/Accessibility/Que_es_accessibilitat
+slug: Learn/Accessibility/What_is_accessibility
 translation_of: Learn/Accessibility/What_is_accessibility
+original_slug: Learn/Accessibility/Que_es_accessibilitat
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/caixes_estil/caixa_aspecte_interessant/index.html b/files/ca/learn/css/building_blocks/a_cool_looking_box/index.html
index 3a4df8a2b2..4a8e050221 100644
--- a/files/ca/learn/css/caixes_estil/caixa_aspecte_interessant/index.html
+++ b/files/ca/learn/css/building_blocks/a_cool_looking_box/index.html
@@ -1,6 +1,6 @@
 ---
 title: Una caixa d'aspecte interessant
-slug: Learn/CSS/Caixes_estil/Caixa_aspecte_interessant
+slug: Learn/CSS/Building_blocks/A_cool_looking_box
 tags:
   - Assessment
   - Beginner
@@ -12,6 +12,7 @@ tags:
   - box model
   - effects
 translation_of: Learn/CSS/Building_blocks/A_cool_looking_box
+original_slug: Learn/CSS/Caixes_estil/Caixa_aspecte_interessant
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/fons_i_vores/index.html b/files/ca/learn/css/building_blocks/backgrounds_and_borders/index.html
index 2e2ce4727c..71da89b786 100644
--- a/files/ca/learn/css/building_blocks/fons_i_vores/index.html
+++ b/files/ca/learn/css/building_blocks/backgrounds_and_borders/index.html
@@ -1,7 +1,8 @@
 ---
 title: Fons i vores
-slug: Learn/CSS/Building_blocks/Fons_i_vores
+slug: Learn/CSS/Building_blocks/Backgrounds_and_borders
 translation_of: Learn/CSS/Building_blocks/Backgrounds_and_borders
+original_slug: Learn/CSS/Building_blocks/Fons_i_vores
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/The_box_model", "Learn/CSS/Building_blocks/Handling_different_text_directions", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/cascada_i_herència/index.html b/files/ca/learn/css/building_blocks/cascade_and_inheritance/index.html
index 09a5e368eb..b99c93e29e 100644
--- a/files/ca/learn/css/building_blocks/cascada_i_herència/index.html
+++ b/files/ca/learn/css/building_blocks/cascade_and_inheritance/index.html
@@ -1,7 +1,8 @@
 ---
 title: Cascada i herència
-slug: Learn/CSS/Building_blocks/Cascada_i_herència
+slug: Learn/CSS/Building_blocks/Cascade_and_inheritance
 translation_of: Learn/CSS/Building_blocks/Cascade_and_inheritance
+original_slug: Learn/CSS/Building_blocks/Cascada_i_herència
 ---
 <div>{{LearnSidebar}}{{NextMenu("Learn/CSS/Building_blocks/Selectors", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/caixes_estil/creació_carta/index.html b/files/ca/learn/css/building_blocks/creating_fancy_letterheaded_paper/index.html
index 2623d6d0dd..bf71948ffb 100644
--- a/files/ca/learn/css/caixes_estil/creació_carta/index.html
+++ b/files/ca/learn/css/building_blocks/creating_fancy_letterheaded_paper/index.html
@@ -1,6 +1,6 @@
 ---
 title: Creació d'una carta amb encapçalat de fantasia
-slug: Learn/CSS/Caixes_estil/Creació_carta
+slug: Learn/CSS/Building_blocks/Creating_fancy_letterheaded_paper
 tags:
   - Assessment
   - Background
@@ -14,6 +14,7 @@ tags:
   - letterheaded
   - paper
 translation_of: Learn/CSS/Building_blocks/Creating_fancy_letterheaded_paper
+original_slug: Learn/CSS/Caixes_estil/Creació_carta
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/depurar_el_css/index.html b/files/ca/learn/css/building_blocks/debugging_css/index.html
index 273468969e..45bdbe5587 100644
--- a/files/ca/learn/css/building_blocks/depurar_el_css/index.html
+++ b/files/ca/learn/css/building_blocks/debugging_css/index.html
@@ -1,7 +1,8 @@
 ---
 title: Depurar el CSS
-slug: Learn/CSS/Building_blocks/Depurar_el_CSS
+slug: Learn/CSS/Building_blocks/Debugging_CSS
 translation_of: Learn/CSS/Building_blocks/Debugging_CSS
+original_slug: Learn/CSS/Building_blocks/Depurar_el_CSS
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Styling_tables", "Learn/CSS/Building_blocks/Organizing", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/introducció_a_css/comprensió_css_fonamental/index.html b/files/ca/learn/css/building_blocks/fundamental_css_comprehension/index.html
index 34a654269a..ff288a91bb 100644
--- a/files/ca/learn/css/introducció_a_css/comprensió_css_fonamental/index.html
+++ b/files/ca/learn/css/building_blocks/fundamental_css_comprehension/index.html
@@ -1,6 +1,6 @@
 ---
 title: Comprensió CSS fonamental
-slug: Learn/CSS/Introducció_a_CSS/Comprensió_CSS_fonamental
+slug: Learn/CSS/Building_blocks/Fundamental_CSS_comprehension
 tags:
   - Assessment
   - Beginner
@@ -13,6 +13,7 @@ tags:
   - comments
   - rules
 translation_of: Learn/CSS/Building_blocks/Fundamental_CSS_comprehension
+original_slug: Learn/CSS/Introducció_a_CSS/Comprensió_CSS_fonamental
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/desbordament_de_contingut/index.html b/files/ca/learn/css/building_blocks/overflowing_content/index.html
index 2ee0dc6129..8f5b6e641d 100644
--- a/files/ca/learn/css/building_blocks/desbordament_de_contingut/index.html
+++ b/files/ca/learn/css/building_blocks/overflowing_content/index.html
@@ -1,7 +1,8 @@
 ---
 title: Desbordament de contingut
-slug: Learn/CSS/Building_blocks/Desbordament_de_contingut
+slug: Learn/CSS/Building_blocks/Overflowing_content
 translation_of: Learn/CSS/Building_blocks/Overflowing_content
+original_slug: Learn/CSS/Building_blocks/Desbordament_de_contingut
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Handling_different_text_directions", "Learn/CSS/Building_blocks/Values_and_units", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/selectors_css/selectors_atribut/index.html b/files/ca/learn/css/building_blocks/selectors/attribute_selectors/index.html
index 6ab61828f8..2039eda428 100644
--- a/files/ca/learn/css/building_blocks/selectors_css/selectors_atribut/index.html
+++ b/files/ca/learn/css/building_blocks/selectors/attribute_selectors/index.html
@@ -1,7 +1,8 @@
 ---
 title: Selectors d'atribut
-slug: Learn/CSS/Building_blocks/Selectors_CSS/Selectors_atribut
+slug: Learn/CSS/Building_blocks/Selectors/Attribute_selectors
 translation_of: Learn/CSS/Building_blocks/Selectors/Attribute_selectors
+original_slug: Learn/CSS/Building_blocks/Selectors_CSS/Selectors_atribut
 ---
 <p>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors", "Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements", "Learn/CSS/Building_blocks")}}</p>
 
diff --git a/files/ca/learn/css/building_blocks/selectors_css/combinadors/index.html b/files/ca/learn/css/building_blocks/selectors/combinators/index.html
index 175379f986..1806678d4a 100644
--- a/files/ca/learn/css/building_blocks/selectors_css/combinadors/index.html
+++ b/files/ca/learn/css/building_blocks/selectors/combinators/index.html
@@ -1,7 +1,8 @@
 ---
 title: Combinadors
-slug: Learn/CSS/Building_blocks/Selectors_CSS/Combinadors
+slug: Learn/CSS/Building_blocks/Selectors/Combinators
 translation_of: Learn/CSS/Building_blocks/Selectors/Combinators
+original_slug: Learn/CSS/Building_blocks/Selectors_CSS/Combinadors
 ---
 <p>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements", "Learn/CSS/Building_blocks/The_box_model", "Learn/CSS/Building_blocks")}}</p>
 
diff --git a/files/ca/learn/css/building_blocks/selectors_css/index.html b/files/ca/learn/css/building_blocks/selectors/index.html
index 4bd7b005de..e58dd3cf92 100644
--- a/files/ca/learn/css/building_blocks/selectors_css/index.html
+++ b/files/ca/learn/css/building_blocks/selectors/index.html
@@ -1,7 +1,8 @@
 ---
 title: Selectors CSS
-slug: Learn/CSS/Building_blocks/Selectors_CSS
+slug: Learn/CSS/Building_blocks/Selectors
 translation_of: Learn/CSS/Building_blocks/Selectors
+original_slug: Learn/CSS/Building_blocks/Selectors_CSS
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Cascade_and_inheritance", "Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/selectors_css/pseudo-classes_and_pseudo-elements/index.html b/files/ca/learn/css/building_blocks/selectors/pseudo-classes_and_pseudo-elements/index.html
index b28cb4873a..b9ecc0a3be 100644
--- a/files/ca/learn/css/building_blocks/selectors_css/pseudo-classes_and_pseudo-elements/index.html
+++ b/files/ca/learn/css/building_blocks/selectors/pseudo-classes_and_pseudo-elements/index.html
@@ -1,7 +1,8 @@
 ---
 title: Pseudoclasses i pseudoelements
-slug: Learn/CSS/Building_blocks/Selectors_CSS/Pseudo-classes_and_pseudo-elements
+slug: Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements
 translation_of: Learn/CSS/Building_blocks/Selectors/Pseudo-classes_and_pseudo-elements
+original_slug: Learn/CSS/Building_blocks/Selectors_CSS/Pseudo-classes_and_pseudo-elements
 ---
 <p>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Selectors/Attribute_selectors", "Learn/CSS/Building_blocks/Selectors/Combinators", "Learn/CSS/Building_blocks")}}</p>
 
diff --git a/files/ca/learn/css/building_blocks/selectors_css/selectors_de_tipus_classe_i_id/index.html b/files/ca/learn/css/building_blocks/selectors/type_class_and_id_selectors/index.html
index 2cdbdc244a..8eaf6cf50e 100644
--- a/files/ca/learn/css/building_blocks/selectors_css/selectors_de_tipus_classe_i_id/index.html
+++ b/files/ca/learn/css/building_blocks/selectors/type_class_and_id_selectors/index.html
@@ -1,7 +1,8 @@
 ---
-title: 'Selectors de tipus, classe i ID'
-slug: Learn/CSS/Building_blocks/Selectors_CSS/Selectors_de_tipus_classe_i_ID
+title: Selectors de tipus, classe i ID
+slug: Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors
 translation_of: Learn/CSS/Building_blocks/Selectors/Type_Class_and_ID_Selectors
+original_slug: Learn/CSS/Building_blocks/Selectors_CSS/Selectors_de_tipus_classe_i_ID
 ---
 <p>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Selectors", "Learn/CSS/Building_blocks/Selectors/Attribute_selectors", "Learn/CSS/Building_blocks")}}</p>
 
diff --git a/files/ca/learn/css/building_blocks/dimensionar_elements_en_css/index.html b/files/ca/learn/css/building_blocks/sizing_items_in_css/index.html
index 5ff34b8d93..36a1ed3a18 100644
--- a/files/ca/learn/css/building_blocks/dimensionar_elements_en_css/index.html
+++ b/files/ca/learn/css/building_blocks/sizing_items_in_css/index.html
@@ -1,7 +1,8 @@
 ---
 title: Dimensionar elements en CSS
-slug: Learn/CSS/Building_blocks/Dimensionar_elements_en_CSS
+slug: Learn/CSS/Building_blocks/Sizing_items_in_CSS
 translation_of: Learn/CSS/Building_blocks/Sizing_items_in_CSS
+original_slug: Learn/CSS/Building_blocks/Dimensionar_elements_en_CSS
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Values_and_units", "Learn/CSS/Building_blocks/Images_media_form_elements", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/building_blocks/valors_i_unitats_css/index.html b/files/ca/learn/css/building_blocks/values_and_units/index.html
index b754bd27ac..12ec749f01 100644
--- a/files/ca/learn/css/building_blocks/valors_i_unitats_css/index.html
+++ b/files/ca/learn/css/building_blocks/values_and_units/index.html
@@ -1,7 +1,8 @@
 ---
 title: Valors i unitats CSS
-slug: Learn/CSS/Building_blocks/Valors_i_unitats_CSS
+slug: Learn/CSS/Building_blocks/Values_and_units
 translation_of: Learn/CSS/Building_blocks/Values_and_units
+original_slug: Learn/CSS/Building_blocks/Valors_i_unitats_CSS
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Overflowing_content", "Learn/CSS/Building_blocks/Sizing_items_in_CSS", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/flexbox/index.html b/files/ca/learn/css/css_layout/flexbox/index.html
index 37f31f619b..f16e4bec67 100644
--- a/files/ca/learn/css/disseny_css/flexbox/index.html
+++ b/files/ca/learn/css/css_layout/flexbox/index.html
@@ -1,6 +1,6 @@
 ---
 title: Flexbox
-slug: Learn/CSS/Disseny_CSS/Flexbox
+slug: Learn/CSS/CSS_layout/Flexbox
 tags:
   - Article
   - Beginner
@@ -14,6 +14,7 @@ tags:
   - Learn
   - flexbox
 translation_of: Learn/CSS/CSS_layout/Flexbox
+original_slug: Learn/CSS/Disseny_CSS/Flexbox
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/flotadors/index.html b/files/ca/learn/css/css_layout/floats/index.html
index 25d2fe01a6..36d5e17da5 100644
--- a/files/ca/learn/css/disseny_css/flotadors/index.html
+++ b/files/ca/learn/css/css_layout/floats/index.html
@@ -1,6 +1,6 @@
 ---
 title: Flotadors (Floats)
-slug: Learn/CSS/Disseny_CSS/Flotadors
+slug: Learn/CSS/CSS_layout/Floats
 tags:
   - Article
   - Beginner
@@ -13,6 +13,7 @@ tags:
   - columns
   - multi-column
 translation_of: Learn/CSS/CSS_layout/Floats
+original_slug: Learn/CSS/Disseny_CSS/Flotadors
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/graelles/index.html b/files/ca/learn/css/css_layout/grids/index.html
index af97c6f989..98cf560583 100644
--- a/files/ca/learn/css/disseny_css/graelles/index.html
+++ b/files/ca/learn/css/css_layout/grids/index.html
@@ -1,6 +1,6 @@
 ---
 title: Graelles (Grids)
-slug: Learn/CSS/Disseny_CSS/Graelles
+slug: Learn/CSS/CSS_layout/Grids
 tags:
   - Article
   - Beginner
@@ -16,6 +16,7 @@ tags:
   - grid framework
   - grid system
 translation_of: Learn/CSS/CSS_layout/Grids
+original_slug: Learn/CSS/Disseny_CSS/Graelles
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/index.html b/files/ca/learn/css/css_layout/index.html
index e74e5da0b9..408d33bd80 100644
--- a/files/ca/learn/css/disseny_css/index.html
+++ b/files/ca/learn/css/css_layout/index.html
@@ -1,6 +1,6 @@
 ---
 title: Disseny CSS
-slug: Learn/CSS/Disseny_CSS
+slug: Learn/CSS/CSS_layout
 tags:
   - Beginner
   - CSS
@@ -16,6 +16,7 @@ tags:
   - flexbox
   - float
 translation_of: Learn/CSS/CSS_layout
+original_slug: Learn/CSS/Disseny_CSS
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/introduccio_disseny_css/index.html b/files/ca/learn/css/css_layout/introduction/index.html
index 88a924dc00..c14622da8f 100644
--- a/files/ca/learn/css/disseny_css/introduccio_disseny_css/index.html
+++ b/files/ca/learn/css/css_layout/introduction/index.html
@@ -1,6 +1,6 @@
 ---
 title: Introducció al disseny CSS
-slug: Learn/CSS/Disseny_CSS/Introduccio_disseny_CSS
+slug: Learn/CSS/CSS_layout/Introduction
 tags:
   - Article
   - Beginner
@@ -15,6 +15,7 @@ tags:
   - flexbox
   - flow
 translation_of: Learn/CSS/CSS_layout/Introduction
+original_slug: Learn/CSS/Disseny_CSS/Introduccio_disseny_CSS
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/flux_normal/index.html b/files/ca/learn/css/css_layout/normal_flow/index.html
index ac44f6a95a..afa52896d8 100644
--- a/files/ca/learn/css/disseny_css/flux_normal/index.html
+++ b/files/ca/learn/css/css_layout/normal_flow/index.html
@@ -1,7 +1,8 @@
 ---
 title: Flux normal
-slug: Learn/CSS/Disseny_CSS/Flux_normal
+slug: Learn/CSS/CSS_layout/Normal_Flow
 translation_of: Learn/CSS/CSS_layout/Normal_Flow
+original_slug: Learn/CSS/Disseny_CSS/Flux_normal
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/posicionament/index.html b/files/ca/learn/css/css_layout/positioning/index.html
index 213293ff4e..154d8fabac 100644
--- a/files/ca/learn/css/disseny_css/posicionament/index.html
+++ b/files/ca/learn/css/css_layout/positioning/index.html
@@ -1,6 +1,6 @@
 ---
 title: Posicionament
-slug: Learn/CSS/Disseny_CSS/Posicionament
+slug: Learn/CSS/CSS_layout/Positioning
 tags:
   - Article
   - Beginner
@@ -13,6 +13,7 @@ tags:
   - fixed
   - relative
 translation_of: Learn/CSS/CSS_layout/Positioning
+original_slug: Learn/CSS/Disseny_CSS/Posicionament
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/exemples_pràctics_posicionament/index.html b/files/ca/learn/css/css_layout/practical_positioning_examples/index.html
index dfaac7f63c..036cb5d308 100644
--- a/files/ca/learn/css/disseny_css/exemples_pràctics_posicionament/index.html
+++ b/files/ca/learn/css/css_layout/practical_positioning_examples/index.html
@@ -1,6 +1,6 @@
 ---
 title: Exemples pràctics de posicionament
-slug: Learn/CSS/Disseny_CSS/Exemples_pràctics_posicionament
+slug: Learn/CSS/CSS_layout/Practical_positioning_examples
 tags:
   - Article
   - Beginner
@@ -13,6 +13,7 @@ tags:
   - fixed
   - relative
 translation_of: Learn/CSS/CSS_layout/Practical_positioning_examples
+original_slug: Learn/CSS/Disseny_CSS/Exemples_pràctics_posicionament
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/disseny_responsiu/index.html b/files/ca/learn/css/css_layout/responsive_design/index.html
index 5bf909e6e7..b8f0011edd 100644
--- a/files/ca/learn/css/disseny_css/disseny_responsiu/index.html
+++ b/files/ca/learn/css/css_layout/responsive_design/index.html
@@ -1,7 +1,8 @@
 ---
 title: Disseny responsiu
-slug: Learn/CSS/Disseny_CSS/Disseny_responsiu
+slug: Learn/CSS/CSS_layout/Responsive_Design
 translation_of: Learn/CSS/CSS_layout/Responsive_Design
+original_slug: Learn/CSS/Disseny_CSS/Disseny_responsiu
 ---
 <div>{{learnsidebar}}{{PreviousMenuNext("Learn/CSS/CSS_layout/Multiple-column_Layout", "Learn/CSS/CSS_layout/Media_queries", "Learn/CSS/CSS_layout")}}</div>
 
diff --git a/files/ca/learn/css/disseny_css/suport_en_navegadors_antics/index.html b/files/ca/learn/css/css_layout/supporting_older_browsers/index.html
index 5a689b6437..e5ee4a703c 100644
--- a/files/ca/learn/css/disseny_css/suport_en_navegadors_antics/index.html
+++ b/files/ca/learn/css/css_layout/supporting_older_browsers/index.html
@@ -1,7 +1,8 @@
 ---
 title: Suport en navegadors antics
-slug: Learn/CSS/Disseny_CSS/Suport_en_navegadors_antics
+slug: Learn/CSS/CSS_layout/Supporting_Older_Browsers
 translation_of: Learn/CSS/CSS_layout/Supporting_Older_Browsers
+original_slug: Learn/CSS/Disseny_CSS/Suport_en_navegadors_antics
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/first_steps/com_començar_amb_css/index.html b/files/ca/learn/css/first_steps/getting_started/index.html
index dfc1ae29b3..555dc4f0cd 100644
--- a/files/ca/learn/css/first_steps/com_començar_amb_css/index.html
+++ b/files/ca/learn/css/first_steps/getting_started/index.html
@@ -1,7 +1,8 @@
 ---
 title: Com començar amb CSS
-slug: Learn/CSS/First_steps/Com_començar_amb_CSS
+slug: Learn/CSS/First_steps/Getting_started
 translation_of: Learn/CSS/First_steps/Getting_started
+original_slug: Learn/CSS/First_steps/Com_començar_amb_CSS
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/first_steps/com_estructurar_el_css/index.html b/files/ca/learn/css/first_steps/how_css_is_structured/index.html
index 6c216af68c..afe4804394 100644
--- a/files/ca/learn/css/first_steps/com_estructurar_el_css/index.html
+++ b/files/ca/learn/css/first_steps/how_css_is_structured/index.html
@@ -1,7 +1,8 @@
 ---
 title: Com estructurar el CSS
-slug: Learn/CSS/First_steps/Com_estructurar_el_CSS
+slug: Learn/CSS/First_steps/How_CSS_is_structured
 translation_of: Learn/CSS/First_steps/How_CSS_is_structured
+original_slug: Learn/CSS/First_steps/Com_estructurar_el_CSS
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/first_steps/com_funciona_el_css/index.html b/files/ca/learn/css/first_steps/how_css_works/index.html
index 9621d2c21c..24727cbdf8 100644
--- a/files/ca/learn/css/first_steps/com_funciona_el_css/index.html
+++ b/files/ca/learn/css/first_steps/how_css_works/index.html
@@ -1,7 +1,8 @@
 ---
 title: Com funciona el CSS
-slug: Learn/CSS/First_steps/Com_funciona_el_CSS
+slug: Learn/CSS/First_steps/How_CSS_works
 translation_of: Learn/CSS/First_steps/How_CSS_works
+original_slug: Learn/CSS/First_steps/Com_funciona_el_CSS
 ---
 <p>{{LearnSidebar}}<br>
  {{PreviousMenuNext("Learn/CSS/First_steps/How_CSS_is_structured", "Learn/CSS/First_steps/Using_your_new_knowledge", "Learn/CSS/First_steps")}}</p>
diff --git a/files/ca/learn/css/first_steps/que_es_el_css/index.html b/files/ca/learn/css/first_steps/what_is_css/index.html
index b158b8e62e..e1817bb73c 100644
--- a/files/ca/learn/css/first_steps/que_es_el_css/index.html
+++ b/files/ca/learn/css/first_steps/what_is_css/index.html
@@ -1,7 +1,8 @@
 ---
 title: Què és el CSS?
-slug: Learn/CSS/First_steps/Que_es_el_CSS
+slug: Learn/CSS/First_steps/What_is_CSS
 translation_of: Learn/CSS/First_steps/What_is_CSS
+original_slug: Learn/CSS/First_steps/Que_es_el_CSS
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/estilitzar_text/text_fonamental/index.html b/files/ca/learn/css/styling_text/fundamentals/index.html
index e258171ffc..2d8295df54 100644
--- a/files/ca/learn/css/estilitzar_text/text_fonamental/index.html
+++ b/files/ca/learn/css/styling_text/fundamentals/index.html
@@ -1,6 +1,6 @@
 ---
 title: Text fonamental i estil de font
-slug: Learn/CSS/Estilitzar_text/Text_fonamental
+slug: Learn/CSS/Styling_text/Fundamentals
 tags:
   - Article
   - Beginner
@@ -15,6 +15,7 @@ tags:
   - spacing
   - weight
 translation_of: Learn/CSS/Styling_text/Fundamentals
+original_slug: Learn/CSS/Estilitzar_text/Text_fonamental
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/estilitzar_text/index.html b/files/ca/learn/css/styling_text/index.html
index c815d83297..39ad209939 100644
--- a/files/ca/learn/css/estilitzar_text/index.html
+++ b/files/ca/learn/css/styling_text/index.html
@@ -1,6 +1,6 @@
 ---
 title: Estilitzar text
-slug: Learn/CSS/Estilitzar_text
+slug: Learn/CSS/Styling_text
 tags:
   - Beginner
   - CSS
@@ -17,6 +17,7 @@ tags:
   - shadow
   - web fonts
 translation_of: Learn/CSS/Styling_text
+original_slug: Learn/CSS/Estilitzar_text
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/estilitzar_text/estilitzar_enllaços/index.html b/files/ca/learn/css/styling_text/styling_links/index.html
index 448a53289d..9ab78597b2 100644
--- a/files/ca/learn/css/estilitzar_text/estilitzar_enllaços/index.html
+++ b/files/ca/learn/css/styling_text/styling_links/index.html
@@ -1,7 +1,8 @@
 ---
 title: Aplicar estils a enllaços
-slug: Learn/CSS/Estilitzar_text/Estilitzar_enllaços
+slug: Learn/CSS/Styling_text/Styling_links
 translation_of: Learn/CSS/Styling_text/Styling_links
+original_slug: Learn/CSS/Estilitzar_text/Estilitzar_enllaços
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/estilitzar_text/llistes_estil/index.html b/files/ca/learn/css/styling_text/styling_lists/index.html
index 6caa6e0e24..8ea4d15476 100644
--- a/files/ca/learn/css/estilitzar_text/llistes_estil/index.html
+++ b/files/ca/learn/css/styling_text/styling_lists/index.html
@@ -1,6 +1,6 @@
 ---
 title: Estils de llistes
-slug: Learn/CSS/Estilitzar_text/Llistes_estil
+slug: Learn/CSS/Styling_text/Styling_lists
 tags:
   - Article
   - Beginner
@@ -11,6 +11,7 @@ tags:
   - bullets
   - lists
 translation_of: Learn/CSS/Styling_text/Styling_lists
+original_slug: Learn/CSS/Estilitzar_text/Llistes_estil
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/estilitzar_text/composició_pàgina_inici/index.html b/files/ca/learn/css/styling_text/typesetting_a_homepage/index.html
index 2619be67e7..48c4955f34 100644
--- a/files/ca/learn/css/estilitzar_text/composició_pàgina_inici/index.html
+++ b/files/ca/learn/css/styling_text/typesetting_a_homepage/index.html
@@ -1,6 +1,6 @@
 ---
 title: Composició d'una pàgina d'inici de l'escola comunitaria
-slug: Learn/CSS/Estilitzar_text/Composició_pàgina_inici
+slug: Learn/CSS/Styling_text/Typesetting_a_homepage
 tags:
   - Assessment
   - Beginner
@@ -12,6 +12,7 @@ tags:
   - list
   - web font
 translation_of: Learn/CSS/Styling_text/Typesetting_a_homepage
+original_slug: Learn/CSS/Estilitzar_text/Composició_pàgina_inici
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/css/estilitzar_text/fonts_web/index.html b/files/ca/learn/css/styling_text/web_fonts/index.html
index b4d1e8ecfd..beba582471 100644
--- a/files/ca/learn/css/estilitzar_text/fonts_web/index.html
+++ b/files/ca/learn/css/styling_text/web_fonts/index.html
@@ -1,6 +1,6 @@
 ---
 title: Fonts Web
-slug: Learn/CSS/Estilitzar_text/Fonts_Web
+slug: Learn/CSS/Styling_text/Web_fonts
 tags:
   - '@font-face'
   - Article
@@ -12,6 +12,7 @@ tags:
   - font-family
   - web fonts
 translation_of: Learn/CSS/Styling_text/Web_fonts
+original_slug: Learn/CSS/Estilitzar_text/Fonts_Web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/forms/controls_de_formulari_originals/index.html b/files/ca/learn/forms/basic_native_form_controls/index.html
index 73ee2a9249..4cc3b868b6 100644
--- a/files/ca/learn/html/forms/controls_de_formulari_originals/index.html
+++ b/files/ca/learn/forms/basic_native_form_controls/index.html
@@ -1,7 +1,8 @@
 ---
 title: Controls de formulari originals
-slug: Learn/HTML/Forms/Controls_de_formulari_originals
+slug: Learn/Forms/Basic_native_form_controls
 translation_of: Learn/Forms/Basic_native_form_controls
+original_slug: Learn/HTML/Forms/Controls_de_formulari_originals
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/forms/validacio_formularis/index.html b/files/ca/learn/forms/form_validation/index.html
index 0b76183d7e..7d5b432e1c 100644
--- a/files/ca/learn/html/forms/validacio_formularis/index.html
+++ b/files/ca/learn/forms/form_validation/index.html
@@ -1,7 +1,8 @@
 ---
 title: Validació de formularis del costat del client
-slug: Learn/HTML/Forms/Validacio_formularis
+slug: Learn/Forms/Form_validation
 translation_of: Learn/Forms/Form_validation
+original_slug: Learn/HTML/Forms/Validacio_formularis
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/forms/com_estructurar_un_formulari_web/index.html b/files/ca/learn/forms/how_to_structure_a_web_form/index.html
index c0cb1e022c..6ba3fe8f1c 100644
--- a/files/ca/learn/html/forms/com_estructurar_un_formulari_web/index.html
+++ b/files/ca/learn/forms/how_to_structure_a_web_form/index.html
@@ -1,7 +1,8 @@
 ---
 title: Com estructurar un formulari web
-slug: Learn/HTML/Forms/Com_estructurar_un_formulari_web
+slug: Learn/Forms/How_to_structure_a_web_form
 translation_of: Learn/Forms/How_to_structure_a_web_form
+original_slug: Learn/HTML/Forms/Com_estructurar_un_formulari_web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/forms/index.html b/files/ca/learn/forms/index.html
index bfd01dcf91..964d71c754 100644
--- a/files/ca/learn/html/forms/index.html
+++ b/files/ca/learn/forms/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTML forms guide
-slug: Learn/HTML/Forms
+slug: Learn/Forms
 tags:
   - Featured
   - Formularis
@@ -8,6 +8,7 @@ tags:
   - HTML
   - Web
 translation_of: Learn/Forms
+original_slug: Learn/HTML/Forms
 ---
 <p>Aquesta guia és una sèrie d'articles que l'ajudaran a dominar els formularis HTML. Els formularis HTML són una eina molt potent per interactuar amb els usuaris; No obstant això, per raons històriques i tècniques, no sempre és obvi com usar-los al seu màxim potencial. En aquesta guia, anem a cobrir tots els aspectes dels formularis HTML, des de donar estil a l'estructura, des de la manipulació de dades amb components personalitzats. Aprendràs a gaudir de la gran potència que ofereixen!</p>
 
diff --git a/files/ca/learn/html/forms/el_teu_primer_formulari/index.html b/files/ca/learn/forms/your_first_form/index.html
index 3f327d4494..95e79c8da4 100644
--- a/files/ca/learn/html/forms/el_teu_primer_formulari/index.html
+++ b/files/ca/learn/forms/your_first_form/index.html
@@ -1,7 +1,8 @@
 ---
 title: El teu primer formulari
-slug: Learn/HTML/Forms/El_teu_primer_formulari
+slug: Learn/Forms/Your_first_form
 translation_of: Learn/Forms/Your_first_form
+original_slug: Learn/HTML/Forms/El_teu_primer_formulari
 ---
 <div>{{LearnSidebar}}{{NextMenu("Learn/Forms/How_to_structure_a_web_form", "Learn/Forms")}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/css_bàsic/index.html b/files/ca/learn/getting_started_with_the_web/css_basics/index.html
index 991a20ca78..92ab165fad 100644
--- a/files/ca/learn/getting_started_with_the_web/css_bàsic/index.html
+++ b/files/ca/learn/getting_started_with_the_web/css_basics/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS bàsic
-slug: Learn/Getting_started_with_the_web/CSS_bàsic
+slug: Learn/Getting_started_with_the_web/CSS_basics
 tags:
   - Beginner
   - CSS
@@ -8,8 +8,9 @@ tags:
   - Learn
   - Styling
   - Web
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Learn/Getting_started_with_the_web/CSS_basics
+original_slug: Learn/Getting_started_with_the_web/CSS_bàsic
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/tractar_amb_arxius/index.html b/files/ca/learn/getting_started_with_the_web/dealing_with_files/index.html
index 0ba94d3273..491e11badc 100644
--- a/files/ca/learn/getting_started_with_the_web/tractar_amb_arxius/index.html
+++ b/files/ca/learn/getting_started_with_the_web/dealing_with_files/index.html
@@ -1,16 +1,17 @@
 ---
 title: Tractar amb arxius
-slug: Learn/Getting_started_with_the_web/Tractar_amb_arxius
+slug: Learn/Getting_started_with_the_web/Dealing_with_files
 tags:
   - Beginner
   - CodingScripting
   - Files
   - Guide
   - HTML
-  - 'l10n:priority'
+  - l10n:priority
   - theory
   - website
 translation_of: Learn/Getting_started_with_the_web/Dealing_with_files
+original_slug: Learn/Getting_started_with_the_web/Tractar_amb_arxius
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/com_funciona_web/index.html b/files/ca/learn/getting_started_with_the_web/how_the_web_works/index.html
index 4a36fb2bff..27677a7d4f 100644
--- a/files/ca/learn/getting_started_with_the_web/com_funciona_web/index.html
+++ b/files/ca/learn/getting_started_with_the_web/how_the_web_works/index.html
@@ -1,6 +1,6 @@
 ---
 title: Com funciona la Web
-slug: Learn/Getting_started_with_the_web/Com_funciona_Web
+slug: Learn/Getting_started_with_the_web/How_the_Web_works
 tags:
   - Beginner
   - Client
@@ -11,8 +11,9 @@ tags:
   - Learn
   - Server
   - TCP
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Learn/Getting_started_with_the_web/How_the_Web_works
+original_slug: Learn/Getting_started_with_the_web/Com_funciona_Web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/instal·lació_bàsica_programari/index.html b/files/ca/learn/getting_started_with_the_web/installing_basic_software/index.html
index aa431f3199..4b52f765ee 100644
--- a/files/ca/learn/getting_started_with_the_web/instal·lació_bàsica_programari/index.html
+++ b/files/ca/learn/getting_started_with_the_web/installing_basic_software/index.html
@@ -1,6 +1,6 @@
 ---
 title: Instal·lació bàsica del programari
-slug: Learn/Getting_started_with_the_web/Instal·lació_bàsica_programari
+slug: Learn/Getting_started_with_the_web/Installing_basic_software
 tags:
   - Beginner
   - Browser
@@ -8,9 +8,10 @@ tags:
   - Setup
   - Tools
   - WebMechanics
-  - 'l10n:priority'
+  - l10n:priority
   - text editor
 translation_of: Learn/Getting_started_with_the_web/Installing_basic_software
+original_slug: Learn/Getting_started_with_the_web/Instal·lació_bàsica_programari
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/javascript_bàsic/index.html b/files/ca/learn/getting_started_with_the_web/javascript_basics/index.html
index e9b90830ca..8ba4dacd4b 100644
--- a/files/ca/learn/getting_started_with_the_web/javascript_bàsic/index.html
+++ b/files/ca/learn/getting_started_with_the_web/javascript_basics/index.html
@@ -1,14 +1,15 @@
 ---
 title: JavaScript bàsic
-slug: Learn/Getting_started_with_the_web/JavaScript_bàsic
+slug: Learn/Getting_started_with_the_web/JavaScript_basics
 tags:
   - Beginner
   - CodingScripting
   - JavaScript
   - Learn
   - Web
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Learn/Getting_started_with_the_web/JavaScript_basics
+original_slug: Learn/Getting_started_with_the_web/JavaScript_bàsic
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/publicar_nostre_lloc_web/index.html b/files/ca/learn/getting_started_with_the_web/publishing_your_website/index.html
index 0329bbfcd0..9999acba6b 100644
--- a/files/ca/learn/getting_started_with_the_web/publicar_nostre_lloc_web/index.html
+++ b/files/ca/learn/getting_started_with_the_web/publishing_your_website/index.html
@@ -1,6 +1,6 @@
 ---
 title: Publicar el nostre lloc web
-slug: Learn/Getting_started_with_the_web/Publicar_nostre_lloc_web
+slug: Learn/Getting_started_with_the_web/Publishing_your_website
 tags:
   - Beginner
   - CodingScripting
@@ -9,10 +9,11 @@ tags:
   - Google App Engine
   - Learn
   - Web
-  - 'l10n:priority'
+  - l10n:priority
   - publishing
   - web server
 translation_of: Learn/Getting_started_with_the_web/Publishing_your_website
+original_slug: Learn/Getting_started_with_the_web/Publicar_nostre_lloc_web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/getting_started_with_the_web/quin_aspecte_tindrà_vostre_lloc_web/index.html b/files/ca/learn/getting_started_with_the_web/what_will_your_website_look_like/index.html
index a7e5ef4b2c..733e6aec2e 100644
--- a/files/ca/learn/getting_started_with_the_web/quin_aspecte_tindrà_vostre_lloc_web/index.html
+++ b/files/ca/learn/getting_started_with_the_web/what_will_your_website_look_like/index.html
@@ -1,6 +1,6 @@
 ---
 title: Quin aspecte tindrà el vostre lloc web?
-slug: Learn/Getting_started_with_the_web/Quin_aspecte_tindrà_vostre_lloc_web
+slug: Learn/Getting_started_with_the_web/What_will_your_website_look_like
 tags:
   - Assets
   - Beginner
@@ -10,8 +10,9 @@ tags:
   - Fonts
   - Learn
   - Plan
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Learn/Getting_started_with_the_web/What_will_your_website_look_like
+original_slug: Learn/Getting_started_with_the_web/Quin_aspecte_tindrà_vostre_lloc_web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/web/guide/html/_consells_per_crear_pàgines_html_de_càrrega_ràpida/index.html b/files/ca/learn/html/howto/author_fast-loading_html_pages/index.html
index 6c683a8156..09e45b6131 100644
--- a/files/ca/web/guide/html/_consells_per_crear_pàgines_html_de_càrrega_ràpida/index.html
+++ b/files/ca/learn/html/howto/author_fast-loading_html_pages/index.html
@@ -1,6 +1,6 @@
 ---
 title: Consells per crear pàgines HTML de càrrega ràpida
-slug: Web/Guide/HTML/_Consells_per_crear_pàgines_HTML_de_càrrega_ràpida
+slug: Learn/HTML/Howto/Author_fast-loading_HTML_pages
 tags:
   - Advanced
   - Guide
@@ -9,6 +9,7 @@ tags:
   - Performance
   - Web
 translation_of: Learn/HTML/Howto/Author_fast-loading_HTML_pages
+original_slug: Web/Guide/HTML/_Consells_per_crear_pàgines_HTML_de_càrrega_ràpida
 ---
 <p><span id="result_box" lang="ca"><span>Aquests consells</span> <span>es</span> <span>basen</span> <span>en el coneixement</span> <span>i</span> <span>l'experimentació</span> <span>comuna.</span></span></p>
 
diff --git a/files/ca/learn/html/introducció_al_html/format_de_text_avançat/index.html b/files/ca/learn/html/introduction_to_html/advanced_text_formatting/index.html
index 8163f0b4c3..4e48058397 100644
--- a/files/ca/learn/html/introducció_al_html/format_de_text_avançat/index.html
+++ b/files/ca/learn/html/introduction_to_html/advanced_text_formatting/index.html
@@ -1,6 +1,6 @@
 ---
 title: Format de text avançat
-slug: Learn/HTML/Introducció_al_HTML/Format_de_text_avançat
+slug: Learn/HTML/Introduction_to_HTML/Advanced_text_formatting
 tags:
   - Beginner
   - CodingScripting
@@ -13,6 +13,7 @@ tags:
   - quote
   - semantic
 translation_of: Learn/HTML/Introduction_to_HTML/Advanced_text_formatting
+original_slug: Learn/HTML/Introducció_al_HTML/Format_de_text_avançat
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/crear_hipervincles/index.html b/files/ca/learn/html/introduction_to_html/creating_hyperlinks/index.html
index c2bc2d0b0c..8bbe503472 100644
--- a/files/ca/learn/html/introducció_al_html/crear_hipervincles/index.html
+++ b/files/ca/learn/html/introduction_to_html/creating_hyperlinks/index.html
@@ -1,6 +1,6 @@
 ---
 title: Crear hipervincles
-slug: Learn/HTML/Introducció_al_HTML/Crear_hipervincles
+slug: Learn/HTML/Introduction_to_HTML/Creating_hyperlinks
 tags:
   - Beginner
   - CodingScripting
@@ -14,6 +14,7 @@ tags:
   - relative
   - urls
 translation_of: Learn/HTML/Introduction_to_HTML/Creating_hyperlinks
+original_slug: Learn/HTML/Introducció_al_HTML/Crear_hipervincles
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/depurar_html/index.html b/files/ca/learn/html/introduction_to_html/debugging_html/index.html
index 5d8feaea62..ec95564653 100644
--- a/files/ca/learn/html/introducció_al_html/depurar_html/index.html
+++ b/files/ca/learn/html/introduction_to_html/debugging_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Depurar HTML
-slug: Learn/HTML/Introducció_al_HTML/Depurar_HTML
+slug: Learn/HTML/Introduction_to_HTML/Debugging_HTML
 tags:
   - Beginner
   - CodingScripting
@@ -11,6 +11,7 @@ tags:
   - Validation
   - validator
 translation_of: Learn/HTML/Introduction_to_HTML/Debugging_HTML
+original_slug: Learn/HTML/Introducció_al_HTML/Depurar_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/document_i_estructura_del_lloc_web/index.html b/files/ca/learn/html/introduction_to_html/document_and_website_structure/index.html
index 1088731eea..c072bc7c22 100644
--- a/files/ca/learn/html/introducció_al_html/document_i_estructura_del_lloc_web/index.html
+++ b/files/ca/learn/html/introduction_to_html/document_and_website_structure/index.html
@@ -1,7 +1,8 @@
 ---
 title: Document i estructura del lloc web
-slug: Learn/HTML/Introducció_al_HTML/Document_i_estructura_del_lloc_web
+slug: Learn/HTML/Introduction_to_HTML/Document_and_website_structure
 translation_of: Learn/HTML/Introduction_to_HTML/Document_and_website_structure
+original_slug: Learn/HTML/Introducció_al_HTML/Document_i_estructura_del_lloc_web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/getting_started/index.html b/files/ca/learn/html/introduction_to_html/getting_started/index.html
index 03b70effc6..aa2074f0bb 100644
--- a/files/ca/learn/html/introducció_al_html/getting_started/index.html
+++ b/files/ca/learn/html/introduction_to_html/getting_started/index.html
@@ -1,6 +1,6 @@
 ---
 title: Inici en HTML
-slug: Learn/HTML/Introducció_al_HTML/Getting_started
+slug: Learn/HTML/Introduction_to_HTML/Getting_started
 tags:
   - Attribute
   - Beginner
@@ -12,6 +12,7 @@ tags:
   - entity reference
   - whitespace
 translation_of: Learn/HTML/Introduction_to_HTML/Getting_started
+original_slug: Learn/HTML/Introducció_al_HTML/Getting_started
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/fonaments_de_text_html/index.html b/files/ca/learn/html/introduction_to_html/html_text_fundamentals/index.html
index fafc49effe..4e25b7fd7b 100644
--- a/files/ca/learn/html/introducció_al_html/fonaments_de_text_html/index.html
+++ b/files/ca/learn/html/introduction_to_html/html_text_fundamentals/index.html
@@ -1,6 +1,6 @@
 ---
 title: Fonaments de text HTML
-slug: Learn/HTML/Introducció_al_HTML/Fonaments_de_text_HTML
+slug: Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals
 tags:
   - Beginner
   - CodingScripting
@@ -13,6 +13,7 @@ tags:
   - paragraphs
   - semantics
 translation_of: Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals
+original_slug: Learn/HTML/Introducció_al_HTML/Fonaments_de_text_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/index.html b/files/ca/learn/html/introduction_to_html/index.html
index 721a2795f5..835f2046b0 100644
--- a/files/ca/learn/html/introducció_al_html/index.html
+++ b/files/ca/learn/html/introduction_to_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Introducció a l'HTML
-slug: Learn/HTML/Introducció_al_HTML
+slug: Learn/HTML/Introduction_to_HTML
 tags:
   - CodingScripting
   - HTML
@@ -12,6 +12,7 @@ tags:
   - head
   - semantics
 translation_of: Learn/HTML/Introduction_to_HTML
+original_slug: Learn/HTML/Introducció_al_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/marcatge_una_carta/index.html b/files/ca/learn/html/introduction_to_html/marking_up_a_letter/index.html
index 34647eb294..999aabd8bd 100644
--- a/files/ca/learn/html/introducció_al_html/marcatge_una_carta/index.html
+++ b/files/ca/learn/html/introduction_to_html/marking_up_a_letter/index.html
@@ -1,6 +1,6 @@
 ---
 title: Marcatge d'una carta
-slug: Learn/HTML/Introducció_al_HTML/Marcatge_una_carta
+slug: Learn/HTML/Introduction_to_HTML/Marking_up_a_letter
 tags:
   - Assessment
   - Beginner
@@ -10,6 +10,7 @@ tags:
   - Text
   - head
 translation_of: Learn/HTML/Introduction_to_HTML/Marking_up_a_letter
+original_slug: Learn/HTML/Introducció_al_HTML/Marcatge_una_carta
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/estructurar_una_pàgina_de_contingut/index.html b/files/ca/learn/html/introduction_to_html/structuring_a_page_of_content/index.html
index e3481bdc15..838a26fe56 100644
--- a/files/ca/learn/html/introducció_al_html/estructurar_una_pàgina_de_contingut/index.html
+++ b/files/ca/learn/html/introduction_to_html/structuring_a_page_of_content/index.html
@@ -1,6 +1,6 @@
 ---
 title: Estructurar una pàgina de contingut
-slug: Learn/HTML/Introducció_al_HTML/Estructurar_una_pàgina_de_contingut
+slug: Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content
 tags:
   - Assessment
   - Beginner
@@ -12,6 +12,7 @@ tags:
   - Structure
   - semantics
 translation_of: Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content
+original_slug: Learn/HTML/Introducció_al_HTML/Estructurar_una_pàgina_de_contingut
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/introducció_al_html/què_hi_ha_en_el_head_metadades_en_html/index.html b/files/ca/learn/html/introduction_to_html/the_head_metadata_in_html/index.html
index 934377c4ca..85677b1759 100644
--- a/files/ca/learn/html/introducció_al_html/què_hi_ha_en_el_head_metadades_en_html/index.html
+++ b/files/ca/learn/html/introduction_to_html/the_head_metadata_in_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Què hi ha en el head? Metadades en HTML
-slug: Learn/HTML/Introducció_al_HTML/Què_hi_ha_en_el_head_Metadades_en_HTML
+slug: Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML
 tags:
   - Beginner
   - CodingScripting
@@ -12,6 +12,7 @@ tags:
   - lang
   - metadata
 translation_of: Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML
+original_slug: Learn/HTML/Introducció_al_HTML/Què_hi_ha_en_el_head_Metadades_en_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/afegir_gràfics_vectorials_a_la_web/index.html b/files/ca/learn/html/multimedia_and_embedding/adding_vector_graphics_to_the_web/index.html
index feaf09c048..082feae6bf 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/afegir_gràfics_vectorials_a_la_web/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/adding_vector_graphics_to_the_web/index.html
@@ -1,6 +1,6 @@
 ---
 title: Afegir gràfics vectorials a la Web
-slug: Learn/HTML/Multimèdia_i_incrustar/Afegir_gràfics_vectorials_a_la_Web
+slug: Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web
 tags:
   - Beginner
   - Graphics
@@ -14,6 +14,7 @@ tags:
   - iframe
   - img
 translation_of: Learn/HTML/Multimedia_and_embedding/Adding_vector_graphics_to_the_Web
+original_slug: Learn/HTML/Multimèdia_i_incrustar/Afegir_gràfics_vectorials_a_la_Web
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/images_in_html/index.html b/files/ca/learn/html/multimedia_and_embedding/images_in_html/index.html
index 839a38b400..74dc1ff697 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/images_in_html/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/images_in_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Imatges en HTML
-slug: Learn/HTML/Multimèdia_i_incrustar/Images_in_HTML
+slug: Learn/HTML/Multimedia_and_embedding/Images_in_HTML
 tags:
   - Article
   - Beginner
@@ -13,6 +13,7 @@ tags:
   - figure
   - img
 translation_of: Learn/HTML/Multimedia_and_embedding/Images_in_HTML
+original_slug: Learn/HTML/Multimèdia_i_incrustar/Images_in_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/index.html b/files/ca/learn/html/multimedia_and_embedding/index.html
index 43e0e89c91..d4f9d6fef8 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/index.html
@@ -1,6 +1,6 @@
 ---
 title: Multimèdia i incrustar
-slug: Learn/HTML/Multimèdia_i_incrustar
+slug: Learn/HTML/Multimedia_and_embedding
 tags:
   - Assessment
   - Audio
@@ -18,6 +18,7 @@ tags:
   - imagemaps
   - responsive
 translation_of: Learn/HTML/Multimedia_and_embedding
+original_slug: Learn/HTML/Multimèdia_i_incrustar
 ---
 <div class="textArea" id="destText" style="direction: ltr;">
 <div><span class="highlighted" id="ouHighlight__0_9TO0_9">Multimèdia</span><span id="noHighlight_0.7886620835513062"> </span><span id="ouHighlight__11_13TO11_11">i</span><span id="noHighlight_0.5759707384643681"> </span><span id="ouHighlight__15_23TO13_21">incrustar</span></div>
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/mozilla_pàgina_de_benvinguda/index.html b/files/ca/learn/html/multimedia_and_embedding/mozilla_splash_page/index.html
index 71e1d3426e..7f47d7762c 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/mozilla_pàgina_de_benvinguda/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/mozilla_splash_page/index.html
@@ -1,6 +1,6 @@
 ---
 title: Mozilla pàgina de benvinguda
-slug: Learn/HTML/Multimèdia_i_incrustar/Mozilla_pàgina_de_benvinguda
+slug: Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page
 tags:
   - Assessment
   - Beginner
@@ -16,6 +16,7 @@ tags:
   - sizes
   - srcset
 translation_of: Learn/HTML/Multimedia_and_embedding/Mozilla_splash_page
+original_slug: Learn/HTML/Multimèdia_i_incrustar/Mozilla_pàgina_de_benvinguda
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/de_objecte_a_iframe_altres_tecnologies_incrustació/index.html b/files/ca/learn/html/multimedia_and_embedding/other_embedding_technologies/index.html
index 0a69bc1d47..caccc6782b 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/de_objecte_a_iframe_altres_tecnologies_incrustació/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/other_embedding_technologies/index.html
@@ -1,7 +1,6 @@
 ---
 title: De objecte a iframe - altres tecnologies d'incrustació
-slug: >-
-  Learn/HTML/Multimèdia_i_incrustar/De_objecte_a_iframe_altres_tecnologies_incrustació
+slug: Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies
 tags:
   - Article
   - Beginner
@@ -16,6 +15,8 @@ tags:
   - embed
   - iframe
 translation_of: Learn/HTML/Multimedia_and_embedding/Other_embedding_technologies
+original_slug: >-
+  Learn/HTML/Multimèdia_i_incrustar/De_objecte_a_iframe_altres_tecnologies_incrustació
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/imatges_sensibles/index.html b/files/ca/learn/html/multimedia_and_embedding/responsive_images/index.html
index 4be56f6248..ddcce139ff 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/imatges_sensibles/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/responsive_images/index.html
@@ -1,6 +1,6 @@
 ---
 title: Imatges sensibles
-slug: Learn/HTML/Multimèdia_i_incrustar/Imatges_sensibles
+slug: Learn/HTML/Multimedia_and_embedding/Responsive_images
 tags:
   - Article
   - Beginner
@@ -15,6 +15,7 @@ tags:
   - sizes
   - srcset
 translation_of: Learn/HTML/Multimedia_and_embedding/Responsive_images
+original_slug: Learn/HTML/Multimèdia_i_incrustar/Imatges_sensibles
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/multimèdia_i_incrustar/contingut_de_vídeo_i_àudio/index.html b/files/ca/learn/html/multimedia_and_embedding/video_and_audio_content/index.html
index 5a8855df2b..c37b3ecfd4 100644
--- a/files/ca/learn/html/multimèdia_i_incrustar/contingut_de_vídeo_i_àudio/index.html
+++ b/files/ca/learn/html/multimedia_and_embedding/video_and_audio_content/index.html
@@ -1,6 +1,6 @@
 ---
 title: Contingut de vídeo i àudio
-slug: Learn/HTML/Multimèdia_i_incrustar/Contingut_de_vídeo_i_àudio
+slug: Learn/HTML/Multimedia_and_embedding/Video_and_audio_content
 tags:
   - Article
   - Audio
@@ -12,6 +12,7 @@ tags:
   - subtitles
   - track
 translation_of: Learn/HTML/Multimedia_and_embedding/Video_and_audio_content
+original_slug: Learn/HTML/Multimèdia_i_incrustar/Contingut_de_vídeo_i_àudio
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/taules_html/taula_html_característiques_avançades_i_laccessibilitat/index.html b/files/ca/learn/html/tables/advanced/index.html
index 69b7edf725..8ccd08e053 100644
--- a/files/ca/learn/html/taules_html/taula_html_característiques_avançades_i_laccessibilitat/index.html
+++ b/files/ca/learn/html/tables/advanced/index.html
@@ -1,6 +1,6 @@
 ---
 title: 'Taules HTML: característiques avançades i accessibilitat'
-slug: Learn/HTML/Taules_HTML/Taula_HTML_característiques_avançades_i_laccessibilitat
+slug: Learn/HTML/Tables/Advanced
 tags:
   - Accessibility
   - Advanced
@@ -19,6 +19,7 @@ tags:
   - tfoot
   - thead
 translation_of: Learn/HTML/Tables/Advanced
+original_slug: Learn/HTML/Taules_HTML/Taula_HTML_característiques_avançades_i_laccessibilitat
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/taules_html/fonaments_de_la_taula_html/index.html b/files/ca/learn/html/tables/basics/index.html
index f21f6fd3ca..fd6156d930 100644
--- a/files/ca/learn/html/taules_html/fonaments_de_la_taula_html/index.html
+++ b/files/ca/learn/html/tables/basics/index.html
@@ -1,6 +1,6 @@
 ---
 title: Fonaments de la taula HTML
-slug: Learn/HTML/Taules_HTML/Fonaments_de_la_taula_HTML
+slug: Learn/HTML/Tables/Basics
 tags:
   - Article
   - Beginner
@@ -17,6 +17,7 @@ tags:
   - row
   - rowspan
 translation_of: Learn/HTML/Tables/Basics
+original_slug: Learn/HTML/Taules_HTML/Fonaments_de_la_taula_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/taules_html/index.html b/files/ca/learn/html/tables/index.html
index add81f874e..433e905386 100644
--- a/files/ca/learn/html/taules_html/index.html
+++ b/files/ca/learn/html/tables/index.html
@@ -1,6 +1,6 @@
 ---
 title: Taules HTML
-slug: Learn/HTML/Taules_HTML
+slug: Learn/HTML/Tables
 tags:
   - Article
   - Beginner
@@ -11,6 +11,7 @@ tags:
   - Module
   - Tables
 translation_of: Learn/HTML/Tables
+original_slug: Learn/HTML/Taules_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/learn/html/taules_html/avaluació_estructurar_les_dades_dels_planeta/index.html b/files/ca/learn/html/tables/structuring_planet_data/index.html
index 15d583607f..2f49124e01 100644
--- a/files/ca/learn/html/taules_html/avaluació_estructurar_les_dades_dels_planeta/index.html
+++ b/files/ca/learn/html/tables/structuring_planet_data/index.html
@@ -1,6 +1,6 @@
 ---
 title: 'Avaluació: Estructurar les dades dels planeta'
-slug: Learn/HTML/Taules_HTML/Avaluació_Estructurar_les_dades_dels_planeta
+slug: Learn/HTML/Tables/Structuring_planet_data
 tags:
   - Assessment
   - Beginner
@@ -9,6 +9,7 @@ tags:
   - Learn
   - Tables
 translation_of: Learn/HTML/Tables/Structuring_planet_data
+original_slug: Learn/HTML/Taules_HTML/Avaluació_Estructurar_les_dades_dels_planeta
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/ca/web/guide/css/inici_en_css/javascript/index.html b/files/ca/learn/javascript/client-side_web_apis/manipulating_documents/index.html
index 83a6f18c98..4250d46dea 100644
--- a/files/ca/web/guide/css/inici_en_css/javascript/index.html
+++ b/files/ca/learn/javascript/client-side_web_apis/manipulating_documents/index.html
@@ -1,9 +1,9 @@
 ---
 title: JavaScript i CSS
-slug: Web/Guide/CSS/Inici_en_CSS/JavaScript
+slug: Learn/JavaScript/Client-side_web_APIs/Manipulating_documents
 tags:
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -11,6 +11,7 @@ tags:
   - Web
 translation_of: Learn/JavaScript/Client-side_web_APIs/Manipulating_documents
 translation_of_original: Web/Guide/CSS/Getting_started/JavaScript
+original_slug: Web/Guide/CSS/Inici_en_CSS/JavaScript
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/ca/web/javascript/introducció_al_javascript_orientat_a_objectes/index.html b/files/ca/learn/javascript/objects/index.html
index 187f7930f4..299d0c2bd3 100644
--- a/files/ca/web/javascript/introducció_al_javascript_orientat_a_objectes/index.html
+++ b/files/ca/learn/javascript/objects/index.html
@@ -1,8 +1,9 @@
 ---
 title: Introducció al Javascript orientat a Objectes
-slug: Web/JavaScript/Introducció_al_Javascript_orientat_a_Objectes
+slug: Learn/JavaScript/Objects
 translation_of: Learn/JavaScript/Objects
 translation_of_original: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
+original_slug: Web/JavaScript/Introducció_al_Javascript_orientat_a_Objectes
 ---
 <div>{{jsSidebar("Introductory")}}</div>
 
diff --git a/files/ca/mdn_at_ten/index.html b/files/ca/mdn/at_ten/index.html
index 5f61d9d876..f71d68bf5e 100644
--- a/files/ca/mdn_at_ten/index.html
+++ b/files/ca/mdn/at_ten/index.html
@@ -1,7 +1,8 @@
 ---
 title: MDN at 10
-slug: MDN_at_ten
+slug: MDN/At_ten
 translation_of: MDN_at_ten
+original_slug: MDN_at_ten
 ---
 <p class="hidden"><span class="seoSummary">Celebra els 10 anys de documentar la teva Web.</span></p>
 
diff --git a/files/ca/mdn/contribute/processos/index.html b/files/ca/mdn/contribute/processes/index.html
index 69faa1d6b5..cce4ff173a 100644
--- a/files/ca/mdn/contribute/processos/index.html
+++ b/files/ca/mdn/contribute/processes/index.html
@@ -1,11 +1,12 @@
 ---
 title: Processos de documentació
-slug: MDN/Contribute/Processos
+slug: MDN/Contribute/Processes
 tags:
   - Landing
   - MDN Meta
   - Processes
 translation_of: MDN/Contribute/Processes
+original_slug: MDN/Contribute/Processos
 ---
 <div>{{MDNSidebar}}</div><div>{{IncludeSubnav("/en-US/docs/MDN")}}</div>
 
diff --git a/files/ca/mdn/kuma/index.html b/files/ca/mdn/yari/index.html
index b9c1ddc40d..a6c0effed5 100644
--- a/files/ca/mdn/kuma/index.html
+++ b/files/ca/mdn/yari/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'Kuma: plataforma wiki de MDN'
-slug: MDN/Kuma
+slug: MDN/Yari
 tags:
   - Kuma
   - Landing
   - MDN Meta
 translation_of: MDN/Kuma
+original_slug: MDN/Kuma
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ca/firefox_2_per_a_desenvolupadors/index.html b/files/ca/mozilla/firefox/releases/2/index.html
index 911a4004f5..347a056a2f 100644
--- a/files/ca/firefox_2_per_a_desenvolupadors/index.html
+++ b/files/ca/mozilla/firefox/releases/2/index.html
@@ -1,7 +1,8 @@
 ---
 title: Firefox 2 per a desenvolupadors
-slug: Firefox_2_per_a_desenvolupadors
+slug: Mozilla/Firefox/Releases/2
 translation_of: Mozilla/Firefox/Releases/2
+original_slug: Firefox_2_per_a_desenvolupadors
 ---
 <h2 id="Noves_caracter.C3.ADstiques_de_desenvolupament_en_el_Firefox_2">Noves característiques de desenvolupament en el Firefox 2</h2>
 <p>El Firefox 2 introdueix un gran nombre de noves funcionalitats i possibilitats. Aquest article us proporciona tot un seguit d'articles que cobreixen aquestes noves característiques.</p>
diff --git a/files/ca/mdn/comunitat/index.html b/files/ca/orphaned/mdn/community/index.html
index 26b3c182a8..20d3bb66ee 100644
--- a/files/ca/mdn/comunitat/index.html
+++ b/files/ca/orphaned/mdn/community/index.html
@@ -1,12 +1,13 @@
 ---
 title: Uniu-vos a la comunitat MDN
-slug: MDN/Comunitat
+slug: orphaned/MDN/Community
 tags:
   - Community
   - Guide
   - Landing
   - MDN Meta
 translation_of: MDN/Community
+original_slug: MDN/Comunitat
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ca/mdn/contribute/howto/crear_un_compte_mdn/index.html b/files/ca/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
index fd8ae9355c..25213fa69f 100644
--- a/files/ca/mdn/contribute/howto/crear_un_compte_mdn/index.html
+++ b/files/ca/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
@@ -1,7 +1,8 @@
 ---
 title: Com crear un compte MDN
-slug: MDN/Contribute/Howto/Crear_un_compte_MDN
+slug: orphaned/MDN/Contribute/Howto/Create_an_MDN_account
 translation_of: MDN/Contribute/Howto/Create_an_MDN_account
+original_slug: MDN/Contribute/Howto/Crear_un_compte_MDN
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/ca/web/html/element/command/index.html b/files/ca/orphaned/web/html/element/command/index.html
index 17614b7e4f..bd49e982d2 100644
--- a/files/ca/web/html/element/command/index.html
+++ b/files/ca/orphaned/web/html/element/command/index.html
@@ -1,12 +1,13 @@
 ---
 title: <command>
-slug: Web/HTML/Element/command
+slug: orphaned/Web/HTML/Element/command
 tags:
   - HTML
   - HTML Element Reference
   - HTML element
   - HTML5
 translation_of: Web/HTML/Element/command
+original_slug: Web/HTML/Element/command
 ---
 <div>{{obsolete_header()}}</div>
 
diff --git a/files/ca/web/html/element/element/index.html b/files/ca/orphaned/web/html/element/element/index.html
index 66e51e06e1..d3cb0b7196 100644
--- a/files/ca/web/html/element/element/index.html
+++ b/files/ca/orphaned/web/html/element/element/index.html
@@ -1,7 +1,8 @@
 ---
 title: <element>
-slug: Web/HTML/Element/element
+slug: orphaned/Web/HTML/Element/element
 translation_of: Web/HTML/Element/element
+original_slug: Web/HTML/Element/element
 ---
 <div class="note">
 <p><strong>Nota:</strong> Aquest element s'ha eliminat de l'especificació. Vegeu <a href="http://lists.w3.org/Archives/Public/public-webapps/2013JulSep/0287.html">això</a> per més informació de l'editor de l'especificació.</p>
diff --git a/files/ca/web/html/global_attributes/dropzone/index.html b/files/ca/orphaned/web/html/global_attributes/dropzone/index.html
index 9435eb1c68..3870f0f65f 100644
--- a/files/ca/web/html/global_attributes/dropzone/index.html
+++ b/files/ca/orphaned/web/html/global_attributes/dropzone/index.html
@@ -1,12 +1,13 @@
 ---
 title: dropzone
-slug: Web/HTML/Global_attributes/dropzone
+slug: orphaned/Web/HTML/Global_attributes/dropzone
 tags:
   - Experimental
   - Global attributes
   - HTML
   - Reference
 translation_of: Web/HTML/Global_attributes/dropzone
+original_slug: Web/HTML/Global_attributes/dropzone
 ---
 <p class="note">{{HTMLSidebar("Global_attributes")}}{{SeeCompatTable}}</p>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/prototype/index.html b/files/ca/orphaned/web/javascript/reference/global_objects/array/prototype/index.html
index 35ebf53933..ec3d1c29d7 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/array/prototype/index.html
+++ b/files/ca/orphaned/web/javascript/reference/global_objects/array/prototype/index.html
@@ -1,7 +1,8 @@
 ---
 title: Array.prototype
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/prototype
+slug: orphaned/Web/JavaScript/Reference/Global_Objects/Array/prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/prototype
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/animacions_avançades/index.html b/files/ca/web/api/canvas_api/tutorial/advanced_animations/index.html
index 4aebb46529..5b70ecc32b 100644
--- a/files/ca/web/api/canvas_api/tutorial/animacions_avançades/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/advanced_animations/index.html
@@ -1,11 +1,12 @@
 ---
 title: Animacions avançades
-slug: Web/API/Canvas_API/Tutorial/Animacions_avançades
+slug: Web/API/Canvas_API/Tutorial/Advanced_animations
 tags:
   - Canvas
   - Graphics
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Advanced_animations
+original_slug: Web/API/Canvas_API/Tutorial/Animacions_avançades
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Basic_animations", "Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/aplicar_estils_i_colors/index.html b/files/ca/web/api/canvas_api/tutorial/applying_styles_and_colors/index.html
index 9adcc2d5f4..b0dbadb6a0 100644
--- a/files/ca/web/api/canvas_api/tutorial/aplicar_estils_i_colors/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/applying_styles_and_colors/index.html
@@ -1,6 +1,6 @@
 ---
 title: Aplicar estils i colors
-slug: Web/API/Canvas_API/Tutorial/Aplicar_estils_i_colors
+slug: Web/API/Canvas_API/Tutorial/Applying_styles_and_colors
 tags:
   - Canvas
   - Graphics
@@ -9,6 +9,7 @@ tags:
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Applying_styles_and_colors
+original_slug: Web/API/Canvas_API/Tutorial/Aplicar_estils_i_colors
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Drawing_shapes", "Web/API/Canvas_API/Tutorial/Drawing_text")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/animacions_bàsiques/index.html b/files/ca/web/api/canvas_api/tutorial/basic_animations/index.html
index e4a3751d1e..358c12a3d7 100644
--- a/files/ca/web/api/canvas_api/tutorial/animacions_bàsiques/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/basic_animations/index.html
@@ -1,6 +1,6 @@
 ---
 title: Animacions bàsiques
-slug: Web/API/Canvas_API/Tutorial/Animacions_bàsiques
+slug: Web/API/Canvas_API/Tutorial/Basic_animations
 tags:
   - Canvas
   - Graphics
@@ -9,6 +9,7 @@ tags:
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Basic_animations
+original_slug: Web/API/Canvas_API/Tutorial/Animacions_bàsiques
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Compositing", "Web/API/Canvas_API/Tutorial/Advanced_animations")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/ús_bàsic/index.html b/files/ca/web/api/canvas_api/tutorial/basic_usage/index.html
index fb15a62d81..cd0bfd3634 100644
--- a/files/ca/web/api/canvas_api/tutorial/ús_bàsic/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/basic_usage/index.html
@@ -1,6 +1,6 @@
 ---
 title: Ús bàsic de canvas
-slug: Web/API/Canvas_API/Tutorial/Ús_bàsic
+slug: Web/API/Canvas_API/Tutorial/Basic_usage
 tags:
   - Canvas
   - Graphics
@@ -8,6 +8,7 @@ tags:
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Basic_usage
+original_slug: Web/API/Canvas_API/Tutorial/Ús_bàsic
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial", "Web/API/Canvas_API/Tutorial/Drawing_shapes")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/composició/index.html b/files/ca/web/api/canvas_api/tutorial/compositing/index.html
index e556e911d4..3aae44e059 100644
--- a/files/ca/web/api/canvas_api/tutorial/composició/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/compositing/index.html
@@ -1,6 +1,6 @@
 ---
 title: Composició i retall
-slug: Web/API/Canvas_API/Tutorial/Composició
+slug: Web/API/Canvas_API/Tutorial/Compositing
 tags:
   - Canvas
   - Graphics
@@ -9,6 +9,7 @@ tags:
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Compositing
+original_slug: Web/API/Canvas_API/Tutorial/Composició
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Transformations", "Web/API/Canvas_API/Tutorial/Basic_animations")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/dibuixar_text/index.html b/files/ca/web/api/canvas_api/tutorial/drawing_text/index.html
index 37b730176a..b7bd981cd9 100644
--- a/files/ca/web/api/canvas_api/tutorial/dibuixar_text/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/drawing_text/index.html
@@ -1,12 +1,13 @@
 ---
 title: Dibuixar text
-slug: Web/API/Canvas_API/Tutorial/Dibuixar_text
+slug: Web/API/Canvas_API/Tutorial/Drawing_text
 tags:
   - Canvas
   - Graphics
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Drawing_text
+original_slug: Web/API/Canvas_API/Tutorial/Dibuixar_text
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Applying_styles_and_colors", "Web/API/Canvas_API/Tutorial/Using_images")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/manipular_píxels_amb_canvas/index.html b/files/ca/web/api/canvas_api/tutorial/pixel_manipulation_with_canvas/index.html
index d792e62ef0..b437cfbb7e 100644
--- a/files/ca/web/api/canvas_api/tutorial/manipular_píxels_amb_canvas/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/pixel_manipulation_with_canvas/index.html
@@ -1,12 +1,13 @@
 ---
 title: Manipular píxels amb canvas
-slug: Web/API/Canvas_API/Tutorial/Manipular_píxels_amb_canvas
+slug: Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas
 tags:
   - Canvas
   - Graphics
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas
+original_slug: Web/API/Canvas_API/Tutorial/Manipular_píxels_amb_canvas
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Advanced_animations", "Web/API/Canvas_API/Tutorial/Hit_regions_and_accessibility")}}</div>
 
diff --git a/files/ca/web/api/canvas_api/tutorial/transformacions/index.html b/files/ca/web/api/canvas_api/tutorial/transformations/index.html
index 2958d40498..ee81746c6d 100644
--- a/files/ca/web/api/canvas_api/tutorial/transformacions/index.html
+++ b/files/ca/web/api/canvas_api/tutorial/transformations/index.html
@@ -1,6 +1,6 @@
 ---
 title: Transformacions
-slug: Web/API/Canvas_API/Tutorial/Transformacions
+slug: Web/API/Canvas_API/Tutorial/Transformations
 tags:
   - Canvas
   - Graphics
@@ -10,6 +10,7 @@ tags:
   - Intermediate
   - Web
 translation_of: Web/API/Canvas_API/Tutorial/Transformations
+original_slug: Web/API/Canvas_API/Tutorial/Transformacions
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Using_images", "Web/API/Canvas_API/Tutorial/Compositing")}}</div>
 
diff --git a/files/ca/web/css/_colon_any/index.html b/files/ca/web/css/_colon_is/index.html
index 6669bc645a..735c5dd92d 100644
--- a/files/ca/web/css/_colon_any/index.html
+++ b/files/ca/web/css/_colon_is/index.html
@@ -1,13 +1,14 @@
 ---
 title: ':any'
-slug: 'Web/CSS/:any'
+slug: Web/CSS/:is
 tags:
   - CSS
   - Experimental
   - Pseudo-class
   - Reference
-translation_of: 'Web/CSS/:is'
-translation_of_original: 'Web/CSS/:any'
+translation_of: Web/CSS/:is
+translation_of_original: Web/CSS/:any
+original_slug: Web/CSS/:any
 ---
 <div>{{CSSRef}}{{SeeCompatTable}}</div>
 
diff --git a/files/ca/web/css/selectors_de_germans_adjacents/index.html b/files/ca/web/css/adjacent_sibling_combinator/index.html
index 911a395693..4cdeef9759 100644
--- a/files/ca/web/css/selectors_de_germans_adjacents/index.html
+++ b/files/ca/web/css/adjacent_sibling_combinator/index.html
@@ -1,12 +1,13 @@
 ---
 title: Combinador de germans adjacents
-slug: Web/CSS/Selectors_de_germans_adjacents
+slug: Web/CSS/Adjacent_sibling_combinator
 tags:
   - CSS
   - NeedsMobileBrowserCompatibility
   - Reference
   - Selectors
 translation_of: Web/CSS/Adjacent_sibling_combinator
+original_slug: Web/CSS/Selectors_de_germans_adjacents
 ---
 <div>{{CSSRef("Selectors")}}</div>
 
diff --git a/files/ca/web/css/selectors_d'atribut/index.html b/files/ca/web/css/attribute_selectors/index.html
index 6778a2b3cb..2878bc2507 100644
--- a/files/ca/web/css/selectors_d'atribut/index.html
+++ b/files/ca/web/css/attribute_selectors/index.html
@@ -1,12 +1,13 @@
 ---
 title: Selector Atribut
-slug: Web/CSS/Selectors_d'Atribut
+slug: Web/CSS/Attribute_selectors
 tags:
   - Beginner
   - CSS
   - Reference
   - Selectors
 translation_of: Web/CSS/Attribute_selectors
+original_slug: Web/CSS/Selectors_d'Atribut
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/selectors_de_fills/index.html b/files/ca/web/css/child_combinator/index.html
index f5cb8139f9..312ae090d4 100644
--- a/files/ca/web/css/selectors_de_fills/index.html
+++ b/files/ca/web/css/child_combinator/index.html
@@ -1,12 +1,13 @@
 ---
 title: Combinador de fills
-slug: Web/CSS/Selectors_de_fills
+slug: Web/CSS/Child_combinator
 tags:
   - CSS
   - NeedsMobileBrowserCompatibility
   - Reference
   - Selectors
 translation_of: Web/CSS/Child_combinator
+original_slug: Web/CSS/Selectors_de_fills
 ---
 <div>{{CSSRef("Selectors")}}</div>
 
diff --git a/files/ca/web/css/selectors_de_classe/index.html b/files/ca/web/css/class_selectors/index.html
index 1f8cfdbee4..1756db8394 100644
--- a/files/ca/web/css/selectors_de_classe/index.html
+++ b/files/ca/web/css/class_selectors/index.html
@@ -1,11 +1,12 @@
 ---
 title: Selector Class
-slug: Web/CSS/Selectors_de_Classe
+slug: Web/CSS/Class_selectors
 tags:
   - CSS
   - Reference
   - Selectors
 translation_of: Web/CSS/Class_selectors
+original_slug: Web/CSS/Selectors_de_Classe
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/css_box_model/introducció_al_model_de_caixa_css/index.html b/files/ca/web/css/css_box_model/introduction_to_the_css_box_model/index.html
index bfb613ed6c..18acde6b02 100644
--- a/files/ca/web/css/css_box_model/introducció_al_model_de_caixa_css/index.html
+++ b/files/ca/web/css/css_box_model/introduction_to_the_css_box_model/index.html
@@ -1,12 +1,13 @@
 ---
 title: Introducció al model de caixa CSS
-slug: Web/CSS/CSS_Box_Model/Introducció_al_model_de_caixa_CSS
+slug: Web/CSS/CSS_Box_Model/Introduction_to_the_CSS_box_model
 tags:
   - CSS
   - CSS Box Model
   - Guide
   - Reference
 translation_of: Web/CSS/CSS_Box_Model/Introduction_to_the_CSS_box_model
+original_slug: Web/CSS/CSS_Box_Model/Introducció_al_model_de_caixa_CSS
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/css_box_model/dominar_el_col.lapse_del_marge/index.html b/files/ca/web/css/css_box_model/mastering_margin_collapsing/index.html
index 9b312fc789..307cd2bbb8 100644
--- a/files/ca/web/css/css_box_model/dominar_el_col.lapse_del_marge/index.html
+++ b/files/ca/web/css/css_box_model/mastering_margin_collapsing/index.html
@@ -1,12 +1,13 @@
 ---
 title: Dominar el col.lapse del marge
-slug: Web/CSS/CSS_Box_Model/Dominar_el_col.lapse_del_marge
+slug: Web/CSS/CSS_Box_Model/Mastering_margin_collapsing
 tags:
   - CSS
   - CSS Box Model
   - Guide
   - Reference
 translation_of: Web/CSS/CSS_Box_Model/Mastering_margin_collapsing
+original_slug: Web/CSS/CSS_Box_Model/Dominar_el_col.lapse_del_marge
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/selectors_css/index.html b/files/ca/web/css/css_selectors/index.html
index 9eaf8daffc..b6041847ef 100644
--- a/files/ca/web/css/selectors_css/index.html
+++ b/files/ca/web/css/css_selectors/index.html
@@ -1,6 +1,6 @@
 ---
 title: Selectors CSS
-slug: Web/CSS/Selectors_CSS
+slug: Web/CSS/CSS_Selectors
 tags:
   - CSS
   - CSS Selectors
@@ -8,6 +8,7 @@ tags:
   - Reference
   - Selectors
 translation_of: Web/CSS/CSS_Selectors
+original_slug: Web/CSS/Selectors_CSS
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/selectors_css/using_the__colon_target_pseudo-class_in_selectors/index.html b/files/ca/web/css/css_selectors/using_the__colon_target_pseudo-class_in_selectors/index.html
index 53339b06e5..f3c708ba38 100644
--- a/files/ca/web/css/selectors_css/using_the__colon_target_pseudo-class_in_selectors/index.html
+++ b/files/ca/web/css/css_selectors/using_the__colon_target_pseudo-class_in_selectors/index.html
@@ -1,13 +1,14 @@
 ---
-title: 'Ùs de la pseudo-class :target  en selectors'
-slug: 'Web/CSS/Selectors_CSS/Using_the_:target_pseudo-class_in_selectors'
+title: Ùs de la pseudo-class :target  en selectors
+slug: Web/CSS/CSS_Selectors/Using_the_:target_pseudo-class_in_selectors
 tags:
   - ':target'
   - CSS
   - Guide
   - Reference
   - Selectors
-translation_of: 'Web/CSS/CSS_Selectors/Using_the_:target_pseudo-class_in_selectors'
+translation_of: Web/CSS/CSS_Selectors/Using_the_:target_pseudo-class_in_selectors
+original_slug: Web/CSS/Selectors_CSS/Using_the_:target_pseudo-class_in_selectors
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/selectors_de_descendents/index.html b/files/ca/web/css/descendant_combinator/index.html
index 1eb4fd57f8..57cfd0f1ef 100644
--- a/files/ca/web/css/selectors_de_descendents/index.html
+++ b/files/ca/web/css/descendant_combinator/index.html
@@ -1,11 +1,12 @@
 ---
 title: Selectors de descendents
-slug: Web/CSS/Selectors_de_descendents
+slug: Web/CSS/Descendant_combinator
 tags:
   - CSS
   - Reference
   - Selectors
 translation_of: Web/CSS/Descendant_combinator
+original_slug: Web/CSS/Selectors_de_descendents
 ---
 <div>{{CSSRef("Selectors")}}</div>
 
diff --git a/files/ca/web/css/selectors_general_de_germans/index.html b/files/ca/web/css/general_sibling_combinator/index.html
index 64429bbaba..dd14105daa 100644
--- a/files/ca/web/css/selectors_general_de_germans/index.html
+++ b/files/ca/web/css/general_sibling_combinator/index.html
@@ -1,12 +1,13 @@
 ---
 title: Combinador general de germans
-slug: Web/CSS/Selectors_general_de_germans
+slug: Web/CSS/General_sibling_combinator
 tags:
   - CSS
   - NeedsMobileBrowserCompatibility
   - Reference
   - Selectors
 translation_of: Web/CSS/General_sibling_combinator
+original_slug: Web/CSS/Selectors_general_de_germans
 ---
 <div><span class="s1">{{CSSRef("Selectors")}}</span></div>
 
diff --git a/files/ca/web/css/selectors_id/index.html b/files/ca/web/css/id_selectors/index.html
index 1b6f041eb6..2a51db6e69 100644
--- a/files/ca/web/css/selectors_id/index.html
+++ b/files/ca/web/css/id_selectors/index.html
@@ -1,11 +1,12 @@
 ---
 title: Selector ID
-slug: Web/CSS/Selectors_ID
+slug: Web/CSS/ID_selectors
 tags:
   - CSS
   - Reference
   - Selectors
 translation_of: Web/CSS/ID_selectors
+original_slug: Web/CSS/Selectors_ID
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/referéncia_css/index.html b/files/ca/web/css/reference/index.html
index 739dcdc9e3..ac8629ce07 100644
--- a/files/ca/web/css/referéncia_css/index.html
+++ b/files/ca/web/css/reference/index.html
@@ -1,11 +1,12 @@
 ---
 title: Referéncia CSS
-slug: Web/CSS/Referéncia_CSS
+slug: Web/CSS/Reference
 tags:
   - CSS
   - Reference
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/CSS/Reference
+original_slug: Web/CSS/Referéncia_CSS
 ---
 <p class="summary"><span id="result_box" lang="ca"><span>Utilitzeu aquesta referència CSS per explorar un</span></span> <a href="#Keyword_index">índex alfabètic</a> <span id="result_box" lang="ca"><span>de totes les propietats</span></span> <a href="/en-US/docs/Web/CSS">CSS</a> <span id="result_box" lang="ca"><span>estàndard</span></span> , <a href="/en-US/docs/Web/CSS/Pseudo-classes">pseudo-classes</a>, <a href="/en-US/docs/Web/CSS/Pseudo-elements">pseudo-elements</a>, <a href="/en-US/docs/Web/CSS/CSS_Types">tipus de dades</a>, i <a href="/en-US/docs/Web/CSS/At-rule">regles-at</a>. <span id="result_box" lang="ca"><span>També podeu explorar una llista de tots els </span></span> <a href="#Selectors">selectors CSS organitzats per tipus</a> i una llista de <a href="#Concepts">conceptes clau CSS</a>. <span id="result_box" lang="ca"><span>També s'inclou una breu</span></span> <a href="#DOM-CSS_CSSOM">referència DOM-CSS / CSSOM</a>.</p>
 
diff --git a/files/ca/web/css/sintaxi/index.html b/files/ca/web/css/syntax/index.html
index 51931c11f0..876bdca751 100644
--- a/files/ca/web/css/sintaxi/index.html
+++ b/files/ca/web/css/syntax/index.html
@@ -1,12 +1,13 @@
 ---
 title: Sintaxi
-slug: Web/CSS/Sintaxi
+slug: Web/CSS/Syntax
 tags:
   - CSS
   - Guide
   - Reference
   - Web
 translation_of: Web/CSS/Syntax
+original_slug: Web/CSS/Sintaxi
 ---
 <div>{{cssref}}</div>
 
diff --git a/files/ca/web/css/selectors_de_tipus/index.html b/files/ca/web/css/type_selectors/index.html
index d87b102ac3..78553af969 100644
--- a/files/ca/web/css/selectors_de_tipus/index.html
+++ b/files/ca/web/css/type_selectors/index.html
@@ -1,6 +1,6 @@
 ---
 title: Selector Type
-slug: Web/CSS/Selectors_de_Tipus
+slug: Web/CSS/Type_selectors
 tags:
   - CSS
   - HTML
@@ -9,6 +9,7 @@ tags:
   - Reference
   - Selectors
 translation_of: Web/CSS/Type_selectors
+original_slug: Web/CSS/Selectors_de_Tipus
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/css/selectors_universal/index.html b/files/ca/web/css/universal_selectors/index.html
index 6aa7931ef9..f625d3d9d9 100644
--- a/files/ca/web/css/selectors_universal/index.html
+++ b/files/ca/web/css/universal_selectors/index.html
@@ -1,6 +1,6 @@
 ---
 title: Selector Universal
-slug: Web/CSS/Selectors_Universal
+slug: Web/CSS/Universal_selectors
 tags:
   - CSS
   - NeedsBrowserCompatibility
@@ -8,6 +8,7 @@ tags:
   - Reference
   - Selectors
 translation_of: Web/CSS/Universal_selectors
+original_slug: Web/CSS/Selectors_Universal
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/ca/web/guide/ajax/primers_passos/index.html b/files/ca/web/guide/ajax/getting_started/index.html
index ea59270ae8..d93348c916 100644
--- a/files/ca/web/guide/ajax/primers_passos/index.html
+++ b/files/ca/web/guide/ajax/getting_started/index.html
@@ -1,10 +1,11 @@
 ---
 title: Primers passos
-slug: Web/Guide/AJAX/Primers_passos
+slug: Web/Guide/AJAX/Getting_Started
 tags:
   - AJAX
   - Totes_les_categories
 translation_of: Web/Guide/AJAX/Getting_Started
+original_slug: Web/Guide/AJAX/Primers_passos
 ---
 <p>
 Aquest article us guiarà a través dels principis bàsics d'AJAX i amb dos pràctics exemples per a anar per feina.
diff --git a/files/ca/web/guide/gràfics/index.html b/files/ca/web/guide/graphics/index.html
index a65c99ec66..26a3d02437 100644
--- a/files/ca/web/guide/gràfics/index.html
+++ b/files/ca/web/guide/graphics/index.html
@@ -1,6 +1,6 @@
 ---
 title: Gràfics en la Web
-slug: Web/Guide/Gràfics
+slug: Web/Guide/Graphics
 tags:
   - 2D
   - 3D
@@ -12,6 +12,7 @@ tags:
   - WebGL
   - WebRTC
 translation_of: Web/Guide/Graphics
+original_slug: Web/Guide/Gràfics
 ---
 <p>Els llocs web i les aplicacions sovint necessiten presentar gràfics. Les imatges estàtiques poden visualitzar-se fàcilment usant l'element {{HTMLElement("img")}} o configurant el fons dels elements HTML  utilitzant la propietat {{cssxref("background-image")}}. També podeu construir gràfics sobre la marxa o manipular imatges després de fetes. Aquests articles proporcionen informació sobre com podeu aconseguir-ho.</p>
 
diff --git a/files/ca/web/guide/html/us_de_seccions_i_esquemes_en_html/index.html b/files/ca/web/guide/html/using_html_sections_and_outlines/index.html
index 5da074b341..afe591b845 100644
--- a/files/ca/web/guide/html/us_de_seccions_i_esquemes_en_html/index.html
+++ b/files/ca/web/guide/html/using_html_sections_and_outlines/index.html
@@ -1,6 +1,6 @@
 ---
 title: Us de seccions i esquemes en HTML 5
-slug: Web/Guide/HTML/Us_de_seccions_i_esquemes_en_HTML
+slug: Web/Guide/HTML/Using_HTML_sections_and_outlines
 tags:
   - Advanced
   - Example
@@ -12,6 +12,7 @@ tags:
   - Sections
   - Web
 translation_of: Web/Guide/HTML/Using_HTML_sections_and_outlines
+original_slug: Web/Guide/HTML/Us_de_seccions_i_esquemes_en_HTML
 ---
 <div class="warning">
 <p><strong>Important</strong>: Actualment no existeixen implementacions de l'algorisme d'esquema en els navegadors gràfics o agents d'usuari de tecnologia d'assistència, encara que l'algorisme s'executa a un altre programari, com comprobadors de conformitat. Per tant, l'algorisme d'<a href="http://www.w3.org/TR/html5/sections.html#outline">esquema</a> no pot ser invocat per transmetre l'estructura dels documents als usuaris. Es recomana als autors a utilitzar les capçaleres de <a href="http://www.w3.org/TR/html5/sections.html#rank">rang</a> (<code><a href="http://www.w3.org/TR/html5/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements">h1</a></code>-<code><a href="http://www.w3.org/TR/html5/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements">h6</a></code>) per transmetre l'estructura.</p>
diff --git a/files/ca/web_development/mobile/a_hybrid_approach/index.html b/files/ca/web/guide/mobile/a_hybrid_approach/index.html
index da2ee0a625..64c76899c9 100644
--- a/files/ca/web_development/mobile/a_hybrid_approach/index.html
+++ b/files/ca/web/guide/mobile/a_hybrid_approach/index.html
@@ -1,7 +1,8 @@
 ---
 title: Una solució híbrida
-slug: Web_Development/Mobile/A_hybrid_approach
+slug: Web/Guide/Mobile/A_hybrid_approach
 translation_of: Web/Guide/Mobile/A_hybrid_approach
+original_slug: Web_Development/Mobile/A_hybrid_approach
 ---
 <p>Les bales de plata costen de trobar en el desenvolupament web — és molt més probable que empris estratègies que fan ús de vàries tècniques segons les circumstàncies. I això ens du a la nostra tercera solució pel desenvolupament web amigable amb el mòbil, que tracta d'evitar les deficiències de les altres dues solucions (<a href="/ca/Web_Development/Mobile/Separate_sites" title="en/Web development/Mobile/Separate sites">diferents webs</a> i <a href="/ca/Web_development/Mobile/Responsive_design" title="en/Web_development/Mobile/Responsive_design">única web amb disseny sensible</a>), combinant-les.</p>
 <p>Aquest enfoc híbrid se centra en atacar per separat cada un dels <a href="/ca/Web_Development/Mobile/Mobile-friendliness" title="en/Web development/Mobile/Mobile-friendliness">tres objectius del desenvolupament web per als mòbils</a>, i aplicar les millors solucions tècniques disponibles a cada un d'ells. Aquest article presenta aquí una potencial combinació de tècniques, però en altres circumstàncies pot convenir una combinació diferent. El concepte clau que cal recordar i entendre és que per resoldre les teves necesitats concretes pots combinar les tècniques que calgui de banda del servidor amb les aplicades al navegador.</p>
diff --git a/files/ca/web_development/mobile/index.html b/files/ca/web/guide/mobile/index.html
index 84a810eb1c..8d98081f36 100644
--- a/files/ca/web_development/mobile/index.html
+++ b/files/ca/web/guide/mobile/index.html
@@ -1,6 +1,6 @@
 ---
 title: Desenvolupament de webs per a mòbils
-slug: Web_Development/Mobile
+slug: Web/Guide/Mobile
 tags:
   - Mobile
   - NeedsTranslation
@@ -8,6 +8,7 @@ tags:
   - Web Development
 translation_of: Web/Guide/Mobile
 translation_of_original: Web_Development/Mobile
+original_slug: Web_Development/Mobile
 ---
 <p>Construir webs per ser vistes en dispositius mòbils requereix prendre solucions que assegurin que la web funcioni igual de bé en dispositius mòbils com ho fa en navegadors d'escriptori. Els següents articles descriuen algunes d'aquestes solucions:</p>
 <ul>
diff --git a/files/ca/web_development/mobile/mobile-friendliness/index.html b/files/ca/web/guide/mobile/mobile-friendliness/index.html
index b5ed1bbdb4..b521896f7e 100644
--- a/files/ca/web_development/mobile/mobile-friendliness/index.html
+++ b/files/ca/web/guide/mobile/mobile-friendliness/index.html
@@ -1,7 +1,8 @@
 ---
 title: Webs amigables amb els mòbils
-slug: Web_Development/Mobile/Mobile-friendliness
+slug: Web/Guide/Mobile/Mobile-friendliness
 translation_of: Web/Guide/Mobile/Mobile-friendliness
+original_slug: Web_Development/Mobile/Mobile-friendliness
 ---
 <h2 id="Què_és_una_web_amigable_amb_els_mòbils">Què és una web amigable amb els mòbils?</h2>
 <p>Vol dir multitud de coses segons amb qui parlis. Lo millor és veure aquest assumpte prenent com a referent els 3 objectius per a millorar l'experiència dels teus usuaris: presentació, contingut, i rendiment.</p>
diff --git a/files/ca/web_development/mobile/separate_sites/index.html b/files/ca/web/guide/mobile/separate_sites/index.html
index ceb9160b38..1f290e1f84 100644
--- a/files/ca/web_development/mobile/separate_sites/index.html
+++ b/files/ca/web/guide/mobile/separate_sites/index.html
@@ -1,7 +1,8 @@
 ---
 title: Diferents webs per a mòbil i PC
-slug: Web_Development/Mobile/Separate_sites
+slug: Web/Guide/Mobile/Separate_sites
 translation_of: Web/Guide/Mobile/Separate_sites
+original_slug: Web_Development/Mobile/Separate_sites
 ---
 <p>La solucio de "webs diferents" per a la construcció de webs accesibles des del mòbil implica crear realment dos webs diferents (de contingut i forma) per als usuaris mòbils i pels que ens visiten des de l'escriptori de l'ordinador/portàtil. Aquesta solució -com les altres- té els seus avantatges però també els seus inconvenients.</p>
 <h2 id="Avantatges">Avantatges</h2>
diff --git a/files/ca/web/html/elements_en_línia/index.html b/files/ca/web/html/inline_elements/index.html
index 0ec8db2c0d..76c2f70120 100644
--- a/files/ca/web/html/elements_en_línia/index.html
+++ b/files/ca/web/html/inline_elements/index.html
@@ -1,11 +1,12 @@
 ---
 title: Elements en línia
-slug: Web/HTML/Elements_en_línia
+slug: Web/HTML/Inline_elements
 tags:
   - Beginner
   - HTML
-  - 'HTML:Element Reference'
+  - HTML:Element Reference
 translation_of: Web/HTML/Inline_elements
+original_slug: Web/HTML/Elements_en_línia
 ---
 <h2 id="Summary" name="Summary">Sumari</h2>
 
diff --git a/files/ca/web/javascript/quant_a_javascript/index.html b/files/ca/web/javascript/about_javascript/index.html
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--- a/files/ca/web/javascript/quant_a_javascript/index.html
+++ b/files/ca/web/javascript/about_javascript/index.html
@@ -1,7 +1,8 @@
 ---
 title: Sobre JavaScript
-slug: Web/JavaScript/quant_a_JavaScript
+slug: Web/JavaScript/About_JavaScript
 translation_of: Web/JavaScript/About_JavaScript
+original_slug: Web/JavaScript/quant_a_JavaScript
 ---
 <div>{{JsSidebar()}}</div>
 
diff --git a/files/ca/web/javascript/guide/expressions_i_operadors/index.html b/files/ca/web/javascript/guide/expressions_and_operators/index.html
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--- a/files/ca/web/javascript/guide/expressions_i_operadors/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Expressions i operadors
-slug: Web/JavaScript/Guide/Expressions_i_Operadors
+slug: Web/JavaScript/Guide/Expressions_and_Operators
 translation_of: Web/JavaScript/Guide/Expressions_and_Operators
+original_slug: Web/JavaScript/Guide/Expressions_i_Operadors
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Functions", "Web/JavaScript/Guide/Numbers_and_dates")}}</div>
 
diff --git a/files/ca/web/javascript/guide/introducció/index.html b/files/ca/web/javascript/guide/introduction/index.html
index 1b598dad9b..540696aa35 100644
--- a/files/ca/web/javascript/guide/introducció/index.html
+++ b/files/ca/web/javascript/guide/introduction/index.html
@@ -1,7 +1,8 @@
 ---
 title: Introducció
-slug: Web/JavaScript/Guide/Introducció
+slug: Web/JavaScript/Guide/Introduction
 translation_of: Web/JavaScript/Guide/Introduction
+original_slug: Web/JavaScript/Guide/Introducció
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide", "Web/JavaScript/Guide/Grammar_and_types")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sobre/index.html b/files/ca/web/javascript/reference/about/index.html
index b1fa0734b3..0da88b4776 100644
--- a/files/ca/web/javascript/referencia/sobre/index.html
+++ b/files/ca/web/javascript/reference/about/index.html
@@ -1,7 +1,8 @@
 ---
 title: Sobre aquesta referència
-slug: Web/JavaScript/Referencia/Sobre
+slug: Web/JavaScript/Reference/About
 translation_of: Web/JavaScript/Reference/About
+original_slug: Web/JavaScript/Referencia/Sobre
 ---
 <p>{{JsSidebar}}</p>
 
diff --git a/files/ca/web/javascript/referencia/classes/constructor/index.html b/files/ca/web/javascript/reference/classes/constructor/index.html
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--- a/files/ca/web/javascript/referencia/classes/constructor/index.html
+++ b/files/ca/web/javascript/reference/classes/constructor/index.html
@@ -1,7 +1,8 @@
 ---
 title: constructor
-slug: Web/JavaScript/Referencia/Classes/constructor
+slug: Web/JavaScript/Reference/Classes/constructor
 translation_of: Web/JavaScript/Reference/Classes/constructor
+original_slug: Web/JavaScript/Referencia/Classes/constructor
 ---
 <div>{{jsSidebar("Classes")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/classes/index.html b/files/ca/web/javascript/reference/classes/index.html
index 23daf7e1ff..080c845943 100644
--- a/files/ca/web/javascript/referencia/classes/index.html
+++ b/files/ca/web/javascript/reference/classes/index.html
@@ -1,6 +1,6 @@
 ---
 title: Classes
-slug: Web/JavaScript/Referencia/Classes
+slug: Web/JavaScript/Reference/Classes
 tags:
   - Classes
   - ECMAScript 2015
@@ -13,6 +13,7 @@ tags:
   - Référence(2)
   - TopicStub
 translation_of: Web/JavaScript/Reference/Classes
+original_slug: Web/JavaScript/Referencia/Classes
 ---
 <div>{{JsSidebar("Classes")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/classes/static/index.html b/files/ca/web/javascript/reference/classes/static/index.html
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--- a/files/ca/web/javascript/referencia/classes/static/index.html
+++ b/files/ca/web/javascript/reference/classes/static/index.html
@@ -1,7 +1,8 @@
 ---
 title: static
-slug: Web/JavaScript/Referencia/Classes/static
+slug: Web/JavaScript/Reference/Classes/static
 translation_of: Web/JavaScript/Reference/Classes/static
+original_slug: Web/JavaScript/Referencia/Classes/static
 ---
 <div>{{jsSidebar("Classes")}}</div>
 
diff --git a/files/ca/web/javascript/reference/errors/nomes-lectura/index.html b/files/ca/web/javascript/reference/errors/read-only/index.html
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--- a/files/ca/web/javascript/reference/errors/nomes-lectura/index.html
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@@ -1,11 +1,12 @@
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-slug: Web/JavaScript/Reference/Errors/Nomes-Lectura
+slug: Web/JavaScript/Reference/Errors/Read-only
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Read-only
+original_slug: Web/JavaScript/Reference/Errors/Nomes-Lectura
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/ca/web/javascript/reference/functions/parameters_rest/index.html b/files/ca/web/javascript/reference/functions/rest_parameters/index.html
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--- a/files/ca/web/javascript/reference/functions/parameters_rest/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Paràmetres rest
-slug: Web/JavaScript/Reference/Functions/parameters_rest
+slug: Web/JavaScript/Reference/Functions/rest_parameters
 translation_of: Web/JavaScript/Reference/Functions/rest_parameters
+original_slug: Web/JavaScript/Reference/Functions/parameters_rest
 ---
 <div>{{jsSidebar("Functions")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/entries/index.html b/files/ca/web/javascript/reference/global_objects/array/entries/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/entries/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.entries()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/entries
+slug: Web/JavaScript/Reference/Global_Objects/Array/entries
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/entries
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/entries
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/every/index.html b/files/ca/web/javascript/reference/global_objects/array/every/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/every/index.html
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 ---
 title: Array.prototype.every()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/every
+slug: Web/JavaScript/Reference/Global_Objects/Array/every
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/every
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/every
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/fill/index.html b/files/ca/web/javascript/reference/global_objects/array/fill/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/fill/index.html
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 ---
 title: Array.prototype.fill()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/fill
+slug: Web/JavaScript/Reference/Global_Objects/Array/fill
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/fill
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/fill
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/filter/index.html b/files/ca/web/javascript/reference/global_objects/array/filter/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/filter/index.html
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 ---
 title: Array.prototype.filter()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/filter
+slug: Web/JavaScript/Reference/Global_Objects/Array/filter
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/filter
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/filter
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/find/index.html b/files/ca/web/javascript/reference/global_objects/array/find/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/find/index.html
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 ---
 title: Array.prototype.find()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/find
+slug: Web/JavaScript/Reference/Global_Objects/Array/find
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/find
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/find
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/findindex/index.html b/files/ca/web/javascript/reference/global_objects/array/findindex/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/findindex/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.findIndex()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/findIndex
+slug: Web/JavaScript/Reference/Global_Objects/Array/findIndex
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/findIndex
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/findIndex
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/foreach/index.html b/files/ca/web/javascript/reference/global_objects/array/foreach/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/foreach/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.forEach()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/forEach
+slug: Web/JavaScript/Reference/Global_Objects/Array/forEach
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/forEach
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/forEach
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/includes/index.html b/files/ca/web/javascript/reference/global_objects/array/includes/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/includes/index.html
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 ---
 title: Array.prototype.includes()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/includes
+slug: Web/JavaScript/Reference/Global_Objects/Array/includes
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/includes
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/includes
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/index.html b/files/ca/web/javascript/reference/global_objects/array/index.html
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 ---
 title: Array
-slug: Web/JavaScript/Referencia/Objectes_globals/Array
+slug: Web/JavaScript/Reference/Global_Objects/Array
 translation_of: Web/JavaScript/Reference/Global_Objects/Array
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array
 ---
 <div>{{JSRef}}</div>
 
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.indexOf()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/indexOf
+slug: Web/JavaScript/Reference/Global_Objects/Array/indexOf
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/indexOf
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/indexOf
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/isarray/index.html b/files/ca/web/javascript/reference/global_objects/array/isarray/index.html
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 ---
 title: Array.isArray()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/isArray
+slug: Web/JavaScript/Reference/Global_Objects/Array/isArray
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/isArray
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/isArray
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/join/index.html b/files/ca/web/javascript/reference/global_objects/array/join/index.html
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 ---
 title: Array.prototype.join()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/join
+slug: Web/JavaScript/Reference/Global_Objects/Array/join
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/join
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/join
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/keys/index.html b/files/ca/web/javascript/reference/global_objects/array/keys/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/keys/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.keys()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/keys
+slug: Web/JavaScript/Reference/Global_Objects/Array/keys
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/keys
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/keys
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/lastindexof/index.html b/files/ca/web/javascript/reference/global_objects/array/lastindexof/index.html
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 ---
 title: Array.prototype.lastIndexOf()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/lastIndexOf
+slug: Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/lastIndexOf
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/length/index.html b/files/ca/web/javascript/reference/global_objects/array/length/index.html
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 ---
 title: Array.prototype.length
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/length
+slug: Web/JavaScript/Reference/Global_Objects/Array/length
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/length
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/length
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/map/index.html b/files/ca/web/javascript/reference/global_objects/array/map/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/map/index.html
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 ---
 title: Array.prototype.map()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/map
+slug: Web/JavaScript/Reference/Global_Objects/Array/map
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/map
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/map
 ---
 <div>{{JSRef("Global_Objects", "Array")}}</div>
 
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 ---
 title: Array.of()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/of
+slug: Web/JavaScript/Reference/Global_Objects/Array/of
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/of
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/of
 ---
 <div>{{JSRef}}</div>
 
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.pop()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/pop
+slug: Web/JavaScript/Reference/Global_Objects/Array/pop
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/pop
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/pop
 ---
 <div>{{JSRef}}</div>
 
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/push/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.push()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/push
+slug: Web/JavaScript/Reference/Global_Objects/Array/push
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/push
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/push
 ---
 <div>{{JSRef}}</div>
 
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.reduce()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/Reduce
+slug: Web/JavaScript/Reference/Global_Objects/Array/Reduce
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/Reduce
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/Reduce
 ---
 <div>{{JSRef}}</div>
 
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@@ -1,7 +1,8 @@
 ---
 title: Array.prototype.reverse()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/reverse
+slug: Web/JavaScript/Reference/Global_Objects/Array/reverse
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/reverse
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/reverse
 ---
 <div>{{JSRef}}</div>
 
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/shift/index.html
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 ---
 title: Array.prototype.shift()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/shift
+slug: Web/JavaScript/Reference/Global_Objects/Array/shift
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/shift
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/shift
 ---
 <div>{{JSRef}}</div>
 
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/slice/index.html
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 ---
 title: Array.prototype.slice()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/slice
+slug: Web/JavaScript/Reference/Global_Objects/Array/slice
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/slice
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/slice
 ---
 <div>{{JSRef}}</div>
 
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--- a/files/ca/web/javascript/referencia/objectes_globals/array/some/index.html
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 title: Array.prototype.some()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/some
+slug: Web/JavaScript/Reference/Global_Objects/Array/some
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/some
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/some
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/array/splice/index.html b/files/ca/web/javascript/reference/global_objects/array/splice/index.html
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@@ -1,7 +1,8 @@
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 title: Array.prototype.splice()
-slug: Web/JavaScript/Referencia/Objectes_globals/Array/splice
+slug: Web/JavaScript/Reference/Global_Objects/Array/splice
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/splice
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Array/splice
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/boolean/index.html b/files/ca/web/javascript/reference/global_objects/boolean/index.html
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 title: Boolean
-slug: Web/JavaScript/Referencia/Objectes_globals/Boolean
+slug: Web/JavaScript/Reference/Global_Objects/Boolean
 translation_of: Web/JavaScript/Reference/Global_Objects/Boolean
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Boolean
 ---
 <div>{{JSRef("Global_Objects", "Boolean")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/boolean/tosource/index.html b/files/ca/web/javascript/reference/global_objects/boolean/tosource/index.html
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-slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/toSource
+slug: Web/JavaScript/Reference/Global_Objects/Boolean/toSource
 translation_of: Web/JavaScript/Reference/Global_Objects/Boolean/toSource
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/toSource
 ---
 <div>{{JSRef("Objectes_standard", "Boolean")}} {{non-standard_header}}</div>
 
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-slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/toString
+slug: Web/JavaScript/Reference/Global_Objects/Boolean/toString
 translation_of: Web/JavaScript/Reference/Global_Objects/Boolean/toString
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/toString
 ---
 <div>{{JSRef("Global_Objects", "Boolean")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/boolean/valueof/index.html b/files/ca/web/javascript/reference/global_objects/boolean/valueof/index.html
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 title: Boolean.prototype.valueOf()
-slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/valueOf
+slug: Web/JavaScript/Reference/Global_Objects/Boolean/valueOf
 translation_of: Web/JavaScript/Reference/Global_Objects/Boolean/valueOf
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Boolean/valueOf
 ---
 <div>{{JSRef("Global_Objects", "Boolean")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getdate/index.html b/files/ca/web/javascript/reference/global_objects/date/getdate/index.html
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 title: Date.prototype.getDate()
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+slug: Web/JavaScript/Reference/Global_Objects/Date/getDate
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getDate
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getDate
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getday/index.html b/files/ca/web/javascript/reference/global_objects/date/getday/index.html
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 ---
 title: Date.prototype.getDay()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getDay
+slug: Web/JavaScript/Reference/Global_Objects/Date/getDay
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getDay
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getDay
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getfullyear/index.html b/files/ca/web/javascript/reference/global_objects/date/getfullyear/index.html
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 ---
 title: Date.prototype.getFullYear()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getFullYear
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getFullYear
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getFullYear
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
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 ---
 title: Date.prototype.getHours()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getHours
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getHours
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getHours
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getmilliseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/getmilliseconds/index.html
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 ---
 title: Date.prototype.getMilliseconds()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getMilliseconds
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getMilliseconds
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getminutes/index.html b/files/ca/web/javascript/reference/global_objects/date/getminutes/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/date/getminutes/index.html
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 title: Date.prototype.getMinutes()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getMinutes
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getMinutes
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getMinutes
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getmonth/index.html b/files/ca/web/javascript/reference/global_objects/date/getmonth/index.html
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 ---
 title: Date.prototype.getMonth()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getMonth
+slug: Web/JavaScript/Reference/Global_Objects/Date/getMonth
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getMonth
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getMonth
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/getseconds/index.html
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 ---
 title: Date.prototype.getSeconds()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getSeconds
+slug: Web/JavaScript/Reference/Global_Objects/Date/getSeconds
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getSeconds
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getSeconds
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/gettime/index.html b/files/ca/web/javascript/reference/global_objects/date/gettime/index.html
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 ---
 title: Date.prototype.getTime()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getTime
+slug: Web/JavaScript/Reference/Global_Objects/Date/getTime
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getTime
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getTime
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/gettimezoneoffset/index.html b/files/ca/web/javascript/reference/global_objects/date/gettimezoneoffset/index.html
index 8af4d6e9e8..9f67664c59 100644
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 ---
 title: Date.prototype.getTimezoneOffset()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getTimezoneOffset
+slug: Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getTimezoneOffset
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcdate/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcdate/index.html
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 ---
 title: Date.prototype.getUTCDate()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCDate
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCDate
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCDate
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCDate
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcday/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcday/index.html
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 ---
 title: Date.prototype.getUTCDay()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCDay
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCDay
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCDay
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCDay
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcfullyear/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcfullyear/index.html
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 ---
 title: Date.prototype.getUTCFullYear()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCFullYear
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCFullYear
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutchours/index.html b/files/ca/web/javascript/reference/global_objects/date/getutchours/index.html
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 ---
 title: Date.prototype.getUTCHours()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCHours
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCHours
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCHours
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcmilliseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcmilliseconds/index.html
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 ---
 title: Date.prototype.getUTCMilliseconds()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCMilliseconds
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCMilliseconds
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcminutes/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcminutes/index.html
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 ---
 title: Date.prototype.getUTCMinutes()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCMinutes
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCMinutes
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcmonth/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcmonth/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/date/getutcmonth/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Date.prototype.getUTCMonth()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCMonth
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCMonth
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getutcseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/getutcseconds/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Date.prototype.getUTCSeconds()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCSeconds
+slug: Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getUTCSeconds
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/getyear/index.html b/files/ca/web/javascript/reference/global_objects/date/getyear/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Date.prototype.getYear()
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+slug: Web/JavaScript/Reference/Global_Objects/Date/getYear
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/getYear
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/getYear
 ---
 <div>{{JSRef("Global_Objects", "Date")}} {{deprecated_header}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/index.html b/files/ca/web/javascript/reference/global_objects/date/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Date
-slug: Web/JavaScript/Referencia/Objectes_globals/Date
+slug: Web/JavaScript/Reference/Global_Objects/Date
 translation_of: Web/JavaScript/Reference/Global_Objects/Date
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/now/index.html b/files/ca/web/javascript/reference/global_objects/date/now/index.html
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 ---
 title: Date.now()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/now
+slug: Web/JavaScript/Reference/Global_Objects/Date/now
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/now
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/now
 ---
 <div>{{JSRef("Global_Objects", "Date")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setdate/index.html b/files/ca/web/javascript/reference/global_objects/date/setdate/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Date.prototype.setDate()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setDate
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/setDate
 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.setFullYear()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setFullYear
+slug: Web/JavaScript/Reference/Global_Objects/Date/setFullYear
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setFullYear
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/sethours/index.html b/files/ca/web/javascript/reference/global_objects/date/sethours/index.html
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 ---
 title: Date.prototype.setHours()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setHours
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setHours
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 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.setMilliseconds()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setMilliseconds
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds
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 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.setMinutes()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setMinutes
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setmonth/index.html b/files/ca/web/javascript/reference/global_objects/date/setmonth/index.html
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 ---
 title: Date.prototype.setMonth()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setMonth
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setMonth
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/setseconds/index.html
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 ---
 title: Date.prototype.setSeconds()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setSeconds
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 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.setTime()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setTime
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setTime
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 <div>{{JSRef}}</div>
 
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 title: Date.prototype.setUTCDate()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCDate
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setutcfullyear/index.html b/files/ca/web/javascript/reference/global_objects/date/setutcfullyear/index.html
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 ---
 title: Date.prototype.setUTCFullYear()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCFullYear
+slug: Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear
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 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.setUTCHours()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCHours
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCHours
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setutcmilliseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/setutcmilliseconds/index.html
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 title: Date.prototype.setUTCMilliseconds()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCMilliseconds
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCMilliseconds
 ---
 <div>{{JSRef}}</div>
 
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 title: Date.prototype.setUTCMinutes()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCMinutes
 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.setUTCMonth()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCMonth
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setutcseconds/index.html b/files/ca/web/javascript/reference/global_objects/date/setutcseconds/index.html
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 ---
 title: Date.prototype.setUTCSeconds()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/setUTCSeconds
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/setyear/index.html b/files/ca/web/javascript/reference/global_objects/date/setyear/index.html
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 ---
 title: Date.prototype.setYear()
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+slug: Web/JavaScript/Reference/Global_Objects/Date/setYear
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/setYear
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/setYear
 ---
 <div>{{JSRef}} {{deprecated_header}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/todatestring/index.html b/files/ca/web/javascript/reference/global_objects/date/todatestring/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Date.prototype.toDateString()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/toDateString
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 translation_of: Web/JavaScript/Reference/Global_Objects/Date/toDateString
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/toDateString
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/togmtstring/index.html b/files/ca/web/javascript/reference/global_objects/date/togmtstring/index.html
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 title: Date.prototype.toGMTString()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/toGMTString
+slug: Web/JavaScript/Reference/Global_Objects/Date/toGMTString
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/toGMTString
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/toGMTString
 ---
 <div>{{JSRef}} {{deprecated_header}}</div>
 
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 ---
 title: Date.prototype.toISOString()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/toISOString
+slug: Web/JavaScript/Reference/Global_Objects/Date/toISOString
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/toISOString
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/toISOString
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/tojson/index.html b/files/ca/web/javascript/reference/global_objects/date/tojson/index.html
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 ---
 title: Date.prototype.toJSON()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/toJSON
+slug: Web/JavaScript/Reference/Global_Objects/Date/toJSON
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/toJSON
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/toJSON
 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.prototype.toString()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/toString
+slug: Web/JavaScript/Reference/Global_Objects/Date/toString
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/toString
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/toString
 ---
 <div>{{JSRef}}</div>
 
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@@ -1,7 +1,8 @@
 ---
 title: Date.prototype.toTimeString()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/toTimeString
+slug: Web/JavaScript/Reference/Global_Objects/Date/toTimeString
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/toTimeString
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/toTimeString
 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Date.UTC()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/UTC
+slug: Web/JavaScript/Reference/Global_Objects/Date/UTC
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/UTC
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 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/date/valueof/index.html b/files/ca/web/javascript/reference/global_objects/date/valueof/index.html
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 ---
 title: Date.prototype.valueOf()
-slug: Web/JavaScript/Referencia/Objectes_globals/Date/valueOf
+slug: Web/JavaScript/Reference/Global_Objects/Date/valueOf
 translation_of: Web/JavaScript/Reference/Global_Objects/Date/valueOf
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Date/valueOf
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/error/columnnumber/index.html b/files/ca/web/javascript/reference/global_objects/error/columnnumber/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Error.prototype.columnNumber
-slug: Web/JavaScript/Referencia/Objectes_globals/Error/columnNumber
+slug: Web/JavaScript/Reference/Global_Objects/Error/columnNumber
 translation_of: Web/JavaScript/Reference/Global_Objects/Error/columnNumber
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Error/columnNumber
 ---
 <div>{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}} {{non-standard_header}}</div>
 
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 ---
 title: Error.prototype.fileName
-slug: Web/JavaScript/Referencia/Objectes_globals/Error/fileName
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 translation_of: Web/JavaScript/Reference/Global_Objects/Error/fileName
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 ---
 <div>{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}} {{non-standard_header}}</div>
 
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 ---
 title: Error
-slug: Web/JavaScript/Referencia/Objectes_globals/Error
+slug: Web/JavaScript/Reference/Global_Objects/Error
 translation_of: Web/JavaScript/Reference/Global_Objects/Error
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 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Error.prototype.lineNumber
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 translation_of: Web/JavaScript/Reference/Global_Objects/Error/lineNumber
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 ---
 <div>{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}} {{non-standard_header}}</div>
 
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 ---
 title: Error.prototype.message
-slug: Web/JavaScript/Referencia/Objectes_globals/Error/message
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 translation_of: Web/JavaScript/Reference/Global_Objects/Error/message
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Error/message
 ---
 <div>{{JSRef("Global_Objects", "Error", "EvalError,InternalError,RangeError,ReferenceError,SyntaxError,TypeError,URIError")}}</div>
 
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 ---
 title: Error.prototype.name
-slug: Web/JavaScript/Referencia/Objectes_globals/Error/name
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 translation_of: Web/JavaScript/Reference/Global_Objects/Error/name
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Error/name
 ---
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--- a/files/ca/web/javascript/referencia/objectes_globals/error/stack/index.html
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 ---
 title: Error.prototype.stack
-slug: Web/JavaScript/Referencia/Objectes_globals/Error/Stack
+slug: Web/JavaScript/Reference/Global_Objects/Error/Stack
 translation_of: Web/JavaScript/Reference/Global_Objects/Error/Stack
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Error/Stack
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+slug: Web/JavaScript/Reference/Global_Objects/Error/toSource
 translation_of: Web/JavaScript/Reference/Global_Objects/Error/toSource
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 <div>{{JSRef}} {{non-standard_header}}</div>
 
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-slug: Web/JavaScript/Referencia/Objectes_globals/Error/toString
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 translation_of: Web/JavaScript/Reference/Global_Objects/Error/toString
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+slug: Web/JavaScript/Reference/Global_Objects
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 <div>
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-slug: Web/JavaScript/Referencia/Objectes_globals/Infinity
+slug: Web/JavaScript/Reference/Global_Objects/Infinity
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 <div>
 <div>
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 title: JSON
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+slug: Web/JavaScript/Reference/Global_Objects/JSON
 translation_of: Web/JavaScript/Reference/Global_Objects/JSON
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diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/clear/index.html b/files/ca/web/javascript/reference/global_objects/map/clear/index.html
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 translation_of: Web/JavaScript/Reference/Global_Objects/Map/clear
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/clear
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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+slug: Web/JavaScript/Reference/Global_Objects/Map/entries
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Map/forEach
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/forEach
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 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/get/index.html b/files/ca/web/javascript/reference/global_objects/map/get/index.html
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 ---
 title: Map.prototype.get()
-slug: Web/JavaScript/Referencia/Objectes_globals/Map/get
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 translation_of: Web/JavaScript/Reference/Global_Objects/Map/get
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/get
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/has/index.html b/files/ca/web/javascript/reference/global_objects/map/has/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/map/has/index.html
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 ---
 title: Map.prototype.has()
-slug: Web/JavaScript/Referencia/Objectes_globals/Map/has
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 translation_of: Web/JavaScript/Reference/Global_Objects/Map/has
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/has
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/index.html b/files/ca/web/javascript/reference/global_objects/map/index.html
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 title: Map
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+slug: Web/JavaScript/Reference/Global_Objects/Map
 translation_of: Web/JavaScript/Reference/Global_Objects/Map
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map
 ---
 <div>{{JSRef("Global_Objects", "Map")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/keys/index.html b/files/ca/web/javascript/reference/global_objects/map/keys/index.html
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 title: Map.prototype.keys()
-slug: Web/JavaScript/Referencia/Objectes_globals/Map/keys
+slug: Web/JavaScript/Reference/Global_Objects/Map/keys
 translation_of: Web/JavaScript/Reference/Global_Objects/Map/keys
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/keys
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/set/index.html b/files/ca/web/javascript/reference/global_objects/map/set/index.html
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-slug: Web/JavaScript/Referencia/Objectes_globals/Map/set
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 translation_of: Web/JavaScript/Reference/Global_Objects/Map/set
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/set
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/size/index.html b/files/ca/web/javascript/reference/global_objects/map/size/index.html
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 title: Map.prototype.size
-slug: Web/JavaScript/Referencia/Objectes_globals/Map/size
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 translation_of: Web/JavaScript/Reference/Global_Objects/Map/size
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/size
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/map/values/index.html b/files/ca/web/javascript/reference/global_objects/map/values/index.html
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 ---
 title: Map.prototype.values()
-slug: Web/JavaScript/Referencia/Objectes_globals/Map/values
+slug: Web/JavaScript/Reference/Global_Objects/Map/values
 translation_of: Web/JavaScript/Reference/Global_Objects/Map/values
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Map/values
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/abs/index.html b/files/ca/web/javascript/reference/global_objects/math/abs/index.html
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 ---
 title: Math.abs()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/abs
+slug: Web/JavaScript/Reference/Global_Objects/Math/abs
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/abs
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/abs
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/acos/index.html b/files/ca/web/javascript/reference/global_objects/math/acos/index.html
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 ---
 title: Math.acos()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Math/acos
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/acos
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/acosh/index.html b/files/ca/web/javascript/reference/global_objects/math/acosh/index.html
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 ---
 title: Math.acosh()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Math/acosh
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/acosh
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/asin/index.html b/files/ca/web/javascript/reference/global_objects/math/asin/index.html
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 ---
 title: Math.asin()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/asin
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 translation_of: Web/JavaScript/Reference/Global_Objects/Math/asin
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/asin
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/asinh/index.html b/files/ca/web/javascript/reference/global_objects/math/asinh/index.html
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 ---
 title: Math.asinh()
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+slug: Web/JavaScript/Reference/Global_Objects/Math/asinh
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/asinh
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/asinh
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/atan/index.html b/files/ca/web/javascript/reference/global_objects/math/atan/index.html
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-slug: Web/JavaScript/Referencia/Objectes_globals/Math/atan
+slug: Web/JavaScript/Reference/Global_Objects/Math/atan
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/atan
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/atan2/index.html b/files/ca/web/javascript/reference/global_objects/math/atan2/index.html
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 ---
 title: Math.atan2()
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 translation_of: Web/JavaScript/Reference/Global_Objects/Math/atan2
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/atan2
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/atanh/index.html b/files/ca/web/javascript/reference/global_objects/math/atanh/index.html
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 ---
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 translation_of: Web/JavaScript/Reference/Global_Objects/Math/atanh
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/atanh
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/cbrt/index.html b/files/ca/web/javascript/reference/global_objects/math/cbrt/index.html
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 ---
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+slug: Web/JavaScript/Reference/Global_Objects/Math/cbrt
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/cbrt
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/cbrt
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/ceil/index.html b/files/ca/web/javascript/reference/global_objects/math/ceil/index.html
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 ---
 title: Math.ceil()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/ceil
+slug: Web/JavaScript/Reference/Global_Objects/Math/ceil
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/ceil
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/ceil
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/clz32/index.html b/files/ca/web/javascript/reference/global_objects/math/clz32/index.html
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 ---
 title: Math.clz32()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/clz32
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 translation_of: Web/JavaScript/Reference/Global_Objects/Math/clz32
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/clz32
 ---
 <div>{{JSRef}}</div>
 
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 ---
 title: Math.cos()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/cos
+slug: Web/JavaScript/Reference/Global_Objects/Math/cos
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/cos
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/cos
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/cosh/index.html b/files/ca/web/javascript/reference/global_objects/math/cosh/index.html
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 ---
 title: Math.cosh()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/cosh
+slug: Web/JavaScript/Reference/Global_Objects/Math/cosh
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/cosh
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/cosh
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/e/index.html b/files/ca/web/javascript/reference/global_objects/math/e/index.html
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 ---
 title: Math.E
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/E
+slug: Web/JavaScript/Reference/Global_Objects/Math/E
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/E
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/E
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/exp/index.html b/files/ca/web/javascript/reference/global_objects/math/exp/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/exp/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/exp/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.exp()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/exp
+slug: Web/JavaScript/Reference/Global_Objects/Math/exp
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/exp
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/exp
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/expm1/index.html b/files/ca/web/javascript/reference/global_objects/math/expm1/index.html
index b8055fba45..017cdc895a 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/expm1/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/expm1/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.expm1()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/expm1
+slug: Web/JavaScript/Reference/Global_Objects/Math/expm1
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/expm1
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/expm1
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/floor/index.html b/files/ca/web/javascript/reference/global_objects/math/floor/index.html
index 4a83b8d0e8..f86e9d6ed8 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/floor/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.floor()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/floor
+slug: Web/JavaScript/Reference/Global_Objects/Math/floor
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/floor
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/floor
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/fround/index.html b/files/ca/web/javascript/reference/global_objects/math/fround/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/fround/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.fround()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/fround
+slug: Web/JavaScript/Reference/Global_Objects/Math/fround
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/fround
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/fround
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/hypot/index.html b/files/ca/web/javascript/reference/global_objects/math/hypot/index.html
index e29bb754f1..c7a8994995 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/hypot/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.hypot()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/hypot
+slug: Web/JavaScript/Reference/Global_Objects/Math/hypot
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/hypot
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/hypot
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/imul/index.html b/files/ca/web/javascript/reference/global_objects/math/imul/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/imul/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/imul/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.imul()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/imul
+slug: Web/JavaScript/Reference/Global_Objects/Math/imul
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/imul
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/imul
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/index.html b/files/ca/web/javascript/reference/global_objects/math/index.html
index d493f51b40..aaaf1f008c 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math
-slug: Web/JavaScript/Referencia/Objectes_globals/Math
+slug: Web/JavaScript/Reference/Global_Objects/Math
 translation_of: Web/JavaScript/Reference/Global_Objects/Math
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/ln10/index.html b/files/ca/web/javascript/reference/global_objects/math/ln10/index.html
index 42107c85f5..49c3f52a1a 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/ln10/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.LN10
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/LN10
+slug: Web/JavaScript/Reference/Global_Objects/Math/LN10
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/LN10
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/LN10
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/ln2/index.html b/files/ca/web/javascript/reference/global_objects/math/ln2/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/ln2/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.LN2
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/LN2
+slug: Web/JavaScript/Reference/Global_Objects/Math/LN2
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/LN2
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/LN2
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/log/index.html b/files/ca/web/javascript/reference/global_objects/math/log/index.html
index a3d8467ae5..e92c8c05d2 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/log/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.log()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/log
+slug: Web/JavaScript/Reference/Global_Objects/Math/log
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/log
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/log
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/log10/index.html b/files/ca/web/javascript/reference/global_objects/math/log10/index.html
index 1a82f34848..b752401732 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/log10/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/log10/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.log10()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/log10
+slug: Web/JavaScript/Reference/Global_Objects/Math/log10
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/log10
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/log10
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/log10e/index.html b/files/ca/web/javascript/reference/global_objects/math/log10e/index.html
index 299c8d12ed..865c5d2748 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/log10e/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/log10e/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.LOG10E
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/LOG10E
+slug: Web/JavaScript/Reference/Global_Objects/Math/LOG10E
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/LOG10E
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/LOG10E
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/log1p/index.html b/files/ca/web/javascript/reference/global_objects/math/log1p/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/log1p/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.log1p()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/log1p
+slug: Web/JavaScript/Reference/Global_Objects/Math/log1p
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/log1p
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/log1p
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/log2/index.html b/files/ca/web/javascript/reference/global_objects/math/log2/index.html
index 0806bd75ff..9877f863b8 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/log2/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.log2()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/log2
+slug: Web/JavaScript/Reference/Global_Objects/Math/log2
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/log2
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/log2
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/log2e/index.html b/files/ca/web/javascript/reference/global_objects/math/log2e/index.html
index 2f37ae44c1..a8483c97e4 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/log2e/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/log2e/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.LOG2E
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/LOG2E
+slug: Web/JavaScript/Reference/Global_Objects/Math/LOG2E
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/LOG2E
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/LOG2E
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/max/index.html b/files/ca/web/javascript/reference/global_objects/math/max/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/max/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.max()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/max
+slug: Web/JavaScript/Reference/Global_Objects/Math/max
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/max
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/max
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/min/index.html b/files/ca/web/javascript/reference/global_objects/math/min/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/min/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/min/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.min()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/min
+slug: Web/JavaScript/Reference/Global_Objects/Math/min
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/min
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/min
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/pi/index.html b/files/ca/web/javascript/reference/global_objects/math/pi/index.html
index b867c953df..11a95acb94 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/pi/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/pi/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.PI
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/PI
+slug: Web/JavaScript/Reference/Global_Objects/Math/PI
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/PI
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/PI
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/pow/index.html b/files/ca/web/javascript/reference/global_objects/math/pow/index.html
index efe89000e9..9f86311dda 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/pow/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.pow()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/pow
+slug: Web/JavaScript/Reference/Global_Objects/Math/pow
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/pow
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/pow
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/random/index.html b/files/ca/web/javascript/reference/global_objects/math/random/index.html
index d70169efd4..5018a5c59d 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/random/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.random()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/random
+slug: Web/JavaScript/Reference/Global_Objects/Math/random
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/random
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/random
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/round/index.html b/files/ca/web/javascript/reference/global_objects/math/round/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/round/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.round()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/round
+slug: Web/JavaScript/Reference/Global_Objects/Math/round
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/round
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/round
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/sign/index.html b/files/ca/web/javascript/reference/global_objects/math/sign/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/sign/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.sign()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/sign
+slug: Web/JavaScript/Reference/Global_Objects/Math/sign
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/sign
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/sign
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/sin/index.html b/files/ca/web/javascript/reference/global_objects/math/sin/index.html
index 7f1faf9a98..e880f9ac74 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/sin/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.sin()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/sin
+slug: Web/JavaScript/Reference/Global_Objects/Math/sin
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/sin
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/sin
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/sinh/index.html b/files/ca/web/javascript/reference/global_objects/math/sinh/index.html
index a1cc1f446a..9622b9a00d 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/sinh/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.sinh()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/sinh
+slug: Web/JavaScript/Reference/Global_Objects/Math/sinh
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/sinh
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/sinh
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/sqrt/index.html b/files/ca/web/javascript/reference/global_objects/math/sqrt/index.html
index b726db8a31..a9cdc465a3 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/sqrt/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.sqrt()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/sqrt
+slug: Web/JavaScript/Reference/Global_Objects/Math/sqrt
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/sqrt
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/sqrt
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/sqrt1_2/index.html b/files/ca/web/javascript/reference/global_objects/math/sqrt1_2/index.html
index 3d7d3a1370..a837b7515d 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/sqrt1_2/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/sqrt1_2/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.SQRT1_2
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/SQRT1_2
+slug: Web/JavaScript/Reference/Global_Objects/Math/SQRT1_2
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/SQRT1_2
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/SQRT1_2
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/sqrt2/index.html b/files/ca/web/javascript/reference/global_objects/math/sqrt2/index.html
index 3d049f228c..fa49b09c47 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/sqrt2/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/sqrt2/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.SQRT2
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/SQRT2
+slug: Web/JavaScript/Reference/Global_Objects/Math/SQRT2
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/SQRT2
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/SQRT2
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/tan/index.html b/files/ca/web/javascript/reference/global_objects/math/tan/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/tan/index.html
+++ b/files/ca/web/javascript/reference/global_objects/math/tan/index.html
@@ -1,7 +1,8 @@
 ---
 title: Math.tan()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/tan
+slug: Web/JavaScript/Reference/Global_Objects/Math/tan
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/tan
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/tan
 ---
 <div>{{JSRef("Global_Objects", "Math")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/tanh/index.html b/files/ca/web/javascript/reference/global_objects/math/tanh/index.html
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--- a/files/ca/web/javascript/referencia/objectes_globals/math/tanh/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.tanh()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/tanh
+slug: Web/JavaScript/Reference/Global_Objects/Math/tanh
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/tanh
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/tanh
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/math/trunc/index.html b/files/ca/web/javascript/reference/global_objects/math/trunc/index.html
index 4f76502d69..5fb0229700 100644
--- a/files/ca/web/javascript/referencia/objectes_globals/math/trunc/index.html
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@@ -1,7 +1,8 @@
 ---
 title: Math.trunc()
-slug: Web/JavaScript/Referencia/Objectes_globals/Math/trunc
+slug: Web/JavaScript/Reference/Global_Objects/Math/trunc
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/trunc
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Math/trunc
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/ca/web/javascript/referencia/objectes_globals/nan/index.html b/files/ca/web/javascript/reference/global_objects/nan/index.html
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@@ -1,7 +1,8 @@
 ---
 title: NaN
-slug: Web/JavaScript/Referencia/Objectes_globals/NaN
+slug: Web/JavaScript/Reference/Global_Objects/NaN
 translation_of: Web/JavaScript/Reference/Global_Objects/NaN
+original_slug: Web/JavaScript/Referencia/Objectes_globals/NaN
 ---
 <div>
 <div>
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 ---
 title: 'null'
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+slug: Web/JavaScript/Reference/Global_Objects/null
 translation_of: Web/JavaScript/Reference/Global_Objects/null
+original_slug: Web/JavaScript/Referencia/Objectes_globals/null
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 translation_of: Web/JavaScript/Reference/Global_Objects/Number/EPSILON
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Number/EPSILON
 ---
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+slug: Web/JavaScript/Reference/Global_Objects/Number
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER
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 ---
 <div>{{JSRef("Global_Objects", "Number")}}</div>
 
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 ---
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 <div>{{JSRef("Global_Objects", "Number")}}</div>
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 translation_of: Web/JavaScript/Reference/Global_Objects/Number/MIN_SAFE_INTEGER
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 ---
 <div>{{JSRef("Global_Objects", "Number")}}</div>
 
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 ---
 <div>{{JSRef("Global_Objects", "Number")}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Number/NaN
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Number/NaN
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 <div>{{JSRef("Global_Objects", "Number")}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Number/NEGATIVE_INFINITY
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Number/NEGATIVE_INFINITY
 ---
 <div>{{JSRef("Global_Objects", "Number")}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Number/POSITIVE_INFINITY
+original_slug: Web/JavaScript/Referencia/Objectes_globals/Number/POSITIVE_INFINITY
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Set/add
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Set/delete
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Set/entries
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Set/has
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Set
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 <div>{{JSRef}}</div>
 
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 translation_of: Web/JavaScript/Reference/Global_Objects/Set/values
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}} {{deprecated_header}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}} {{deprecated_header}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}} {{deprecated_header}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>{{JSRef}}</div>
 
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 <div>
 <div>{{jsSidebar("Operators")}}</div>
diff --git a/files/ca/web/javascript/referencia/operadors/conditional_operator/index.html b/files/ca/web/javascript/reference/operators/conditional_operator/index.html
index 15265c62b3..0cfbd791a3 100644
--- a/files/ca/web/javascript/referencia/operadors/conditional_operator/index.html
+++ b/files/ca/web/javascript/reference/operators/conditional_operator/index.html
@@ -1,7 +1,8 @@
 ---
 title: Operador Condicional (ternari)
-slug: Web/JavaScript/Referencia/Operadors/Conditional_Operator
+slug: Web/JavaScript/Reference/Operators/Conditional_Operator
 translation_of: Web/JavaScript/Reference/Operators/Conditional_Operator
+original_slug: Web/JavaScript/Referencia/Operadors/Conditional_Operator
 ---
 <div>
 <div>{{jsSidebar("Operators")}}</div>
diff --git a/files/ca/web/javascript/referencia/operadors/function/index.html b/files/ca/web/javascript/reference/operators/function/index.html
index 0908f591b6..ad7b71f5de 100644
--- a/files/ca/web/javascript/referencia/operadors/function/index.html
+++ b/files/ca/web/javascript/reference/operators/function/index.html
@@ -1,7 +1,8 @@
 ---
 title: function expression
-slug: Web/JavaScript/Referencia/Operadors/function
+slug: Web/JavaScript/Reference/Operators/function
 translation_of: Web/JavaScript/Reference/Operators/function
+original_slug: Web/JavaScript/Referencia/Operadors/function
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/operadors/grouping/index.html b/files/ca/web/javascript/reference/operators/grouping/index.html
index 45e8566806..7c2441239b 100644
--- a/files/ca/web/javascript/referencia/operadors/grouping/index.html
+++ b/files/ca/web/javascript/reference/operators/grouping/index.html
@@ -1,7 +1,8 @@
 ---
 title: Operador d'agrupament
-slug: Web/JavaScript/Referencia/Operadors/Grouping
+slug: Web/JavaScript/Reference/Operators/Grouping
 translation_of: Web/JavaScript/Reference/Operators/Grouping
+original_slug: Web/JavaScript/Referencia/Operadors/Grouping
 ---
 <div>
 <div>{{jsSidebar("Operators")}}</div>
diff --git a/files/ca/web/javascript/referencia/operadors/index.html b/files/ca/web/javascript/reference/operators/index.html
index 4a70edc4fb..620607e228 100644
--- a/files/ca/web/javascript/referencia/operadors/index.html
+++ b/files/ca/web/javascript/reference/operators/index.html
@@ -1,12 +1,13 @@
 ---
 title: Expressions and operators
-slug: Web/JavaScript/Referencia/Operadors
+slug: Web/JavaScript/Reference/Operators
 tags:
   - JavaScript
   - NeedsTranslation
   - Operators
   - TopicStub
 translation_of: Web/JavaScript/Reference/Operators
+original_slug: Web/JavaScript/Referencia/Operadors
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/operadors/super/index.html b/files/ca/web/javascript/reference/operators/super/index.html
index c19e58cba1..140c07505a 100644
--- a/files/ca/web/javascript/referencia/operadors/super/index.html
+++ b/files/ca/web/javascript/reference/operators/super/index.html
@@ -1,7 +1,8 @@
 ---
 title: super
-slug: Web/JavaScript/Referencia/Operadors/super
+slug: Web/JavaScript/Reference/Operators/super
 translation_of: Web/JavaScript/Reference/Operators/super
+original_slug: Web/JavaScript/Referencia/Operadors/super
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/operadors/typeof/index.html b/files/ca/web/javascript/reference/operators/typeof/index.html
index a7407e79ce..dbdfa6f86a 100644
--- a/files/ca/web/javascript/referencia/operadors/typeof/index.html
+++ b/files/ca/web/javascript/reference/operators/typeof/index.html
@@ -1,7 +1,8 @@
 ---
 title: typeof
-slug: Web/JavaScript/Referencia/Operadors/typeof
+slug: Web/JavaScript/Reference/Operators/typeof
 translation_of: Web/JavaScript/Reference/Operators/typeof
+original_slug: Web/JavaScript/Referencia/Operadors/typeof
 ---
 <div>
 <div>{{jsSidebar("Operators")}}</div>
diff --git a/files/ca/web/javascript/referencia/operadors/void/index.html b/files/ca/web/javascript/reference/operators/void/index.html
index ddf98ebfd9..60b2846665 100644
--- a/files/ca/web/javascript/referencia/operadors/void/index.html
+++ b/files/ca/web/javascript/reference/operators/void/index.html
@@ -1,7 +1,8 @@
 ---
 title: L'operador void
-slug: Web/JavaScript/Referencia/Operadors/void
+slug: Web/JavaScript/Reference/Operators/void
 translation_of: Web/JavaScript/Reference/Operators/void
+original_slug: Web/JavaScript/Referencia/Operadors/void
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/operadors/yield/index.html b/files/ca/web/javascript/reference/operators/yield/index.html
index d01f641767..cdbe9b1c37 100644
--- a/files/ca/web/javascript/referencia/operadors/yield/index.html
+++ b/files/ca/web/javascript/reference/operators/yield/index.html
@@ -1,7 +1,8 @@
 ---
 title: yield
-slug: Web/JavaScript/Referencia/Operadors/yield
+slug: Web/JavaScript/Reference/Operators/yield
 translation_of: Web/JavaScript/Reference/Operators/yield
+original_slug: Web/JavaScript/Referencia/Operadors/yield
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/block/index.html b/files/ca/web/javascript/reference/statements/block/index.html
index cfa5d7fd20..7e2f0602ec 100644
--- a/files/ca/web/javascript/referencia/sentencies/block/index.html
+++ b/files/ca/web/javascript/reference/statements/block/index.html
@@ -1,7 +1,8 @@
 ---
 title: block
-slug: Web/JavaScript/Referencia/Sentencies/block
+slug: Web/JavaScript/Reference/Statements/block
 translation_of: Web/JavaScript/Reference/Statements/block
+original_slug: Web/JavaScript/Referencia/Sentencies/block
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/break/index.html b/files/ca/web/javascript/reference/statements/break/index.html
index d71eff620d..a4bb253163 100644
--- a/files/ca/web/javascript/referencia/sentencies/break/index.html
+++ b/files/ca/web/javascript/reference/statements/break/index.html
@@ -1,7 +1,8 @@
 ---
 title: break
-slug: Web/JavaScript/Referencia/Sentencies/break
+slug: Web/JavaScript/Reference/Statements/break
 translation_of: Web/JavaScript/Reference/Statements/break
+original_slug: Web/JavaScript/Referencia/Sentencies/break
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/continue/index.html b/files/ca/web/javascript/reference/statements/continue/index.html
index a6928d15b7..fc2d298ac0 100644
--- a/files/ca/web/javascript/referencia/sentencies/continue/index.html
+++ b/files/ca/web/javascript/reference/statements/continue/index.html
@@ -1,7 +1,8 @@
 ---
 title: continue
-slug: Web/JavaScript/Referencia/Sentencies/continue
+slug: Web/JavaScript/Reference/Statements/continue
 translation_of: Web/JavaScript/Reference/Statements/continue
+original_slug: Web/JavaScript/Referencia/Sentencies/continue
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/debugger/index.html b/files/ca/web/javascript/reference/statements/debugger/index.html
index 54d8d02e3d..7ccf2e9ae2 100644
--- a/files/ca/web/javascript/referencia/sentencies/debugger/index.html
+++ b/files/ca/web/javascript/reference/statements/debugger/index.html
@@ -1,7 +1,8 @@
 ---
 title: debugger
-slug: Web/JavaScript/Referencia/Sentencies/debugger
+slug: Web/JavaScript/Reference/Statements/debugger
 translation_of: Web/JavaScript/Reference/Statements/debugger
+original_slug: Web/JavaScript/Referencia/Sentencies/debugger
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/do...while/index.html b/files/ca/web/javascript/reference/statements/do...while/index.html
index 88f221f83d..e5a3a33578 100644
--- a/files/ca/web/javascript/referencia/sentencies/do...while/index.html
+++ b/files/ca/web/javascript/reference/statements/do...while/index.html
@@ -1,7 +1,8 @@
 ---
 title: do...while
-slug: Web/JavaScript/Referencia/Sentencies/do...while
+slug: Web/JavaScript/Reference/Statements/do...while
 translation_of: Web/JavaScript/Reference/Statements/do...while
+original_slug: Web/JavaScript/Referencia/Sentencies/do...while
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/buida/index.html b/files/ca/web/javascript/reference/statements/empty/index.html
index 6800d476f8..3d3e916fe1 100644
--- a/files/ca/web/javascript/referencia/sentencies/buida/index.html
+++ b/files/ca/web/javascript/reference/statements/empty/index.html
@@ -1,7 +1,8 @@
 ---
 title: Buida
-slug: Web/JavaScript/Referencia/Sentencies/Buida
+slug: Web/JavaScript/Reference/Statements/Empty
 translation_of: Web/JavaScript/Reference/Statements/Empty
+original_slug: Web/JavaScript/Referencia/Sentencies/Buida
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/export/index.html b/files/ca/web/javascript/reference/statements/export/index.html
index c1d92ab504..fcf4f6283e 100644
--- a/files/ca/web/javascript/referencia/sentencies/export/index.html
+++ b/files/ca/web/javascript/reference/statements/export/index.html
@@ -1,7 +1,8 @@
 ---
 title: export
-slug: Web/JavaScript/Referencia/Sentencies/export
+slug: Web/JavaScript/Reference/Statements/export
 translation_of: Web/JavaScript/Reference/Statements/export
+original_slug: Web/JavaScript/Referencia/Sentencies/export
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/for...of/index.html b/files/ca/web/javascript/reference/statements/for...of/index.html
index 5cc16f52f8..0df66da1b8 100644
--- a/files/ca/web/javascript/referencia/sentencies/for...of/index.html
+++ b/files/ca/web/javascript/reference/statements/for...of/index.html
@@ -1,7 +1,8 @@
 ---
 title: for...of
-slug: Web/JavaScript/Referencia/Sentencies/for...of
+slug: Web/JavaScript/Reference/Statements/for...of
 translation_of: Web/JavaScript/Reference/Statements/for...of
+original_slug: Web/JavaScript/Referencia/Sentencies/for...of
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/for/index.html b/files/ca/web/javascript/reference/statements/for/index.html
index 00a16b62df..78f72b9850 100644
--- a/files/ca/web/javascript/referencia/sentencies/for/index.html
+++ b/files/ca/web/javascript/reference/statements/for/index.html
@@ -1,7 +1,8 @@
 ---
 title: for
-slug: Web/JavaScript/Referencia/Sentencies/for
+slug: Web/JavaScript/Reference/Statements/for
 translation_of: Web/JavaScript/Reference/Statements/for
+original_slug: Web/JavaScript/Referencia/Sentencies/for
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/function/index.html b/files/ca/web/javascript/reference/statements/function/index.html
index 37deff748f..207c3b0af8 100644
--- a/files/ca/web/javascript/referencia/sentencies/function/index.html
+++ b/files/ca/web/javascript/reference/statements/function/index.html
@@ -1,7 +1,8 @@
 ---
 title: function
-slug: Web/JavaScript/Referencia/Sentencies/function
+slug: Web/JavaScript/Reference/Statements/function
 translation_of: Web/JavaScript/Reference/Statements/function
+original_slug: Web/JavaScript/Referencia/Sentencies/function
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/if...else/index.html b/files/ca/web/javascript/reference/statements/if...else/index.html
index b45e9bea3c..5b7e36ad50 100644
--- a/files/ca/web/javascript/referencia/sentencies/if...else/index.html
+++ b/files/ca/web/javascript/reference/statements/if...else/index.html
@@ -1,7 +1,8 @@
 ---
 title: if...else
-slug: Web/JavaScript/Referencia/Sentencies/if...else
+slug: Web/JavaScript/Reference/Statements/if...else
 translation_of: Web/JavaScript/Reference/Statements/if...else
+original_slug: Web/JavaScript/Referencia/Sentencies/if...else
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/index.html b/files/ca/web/javascript/reference/statements/index.html
index e91e446cbf..d3eeca18da 100644
--- a/files/ca/web/javascript/referencia/sentencies/index.html
+++ b/files/ca/web/javascript/reference/statements/index.html
@@ -1,6 +1,6 @@
 ---
 title: Statements and declarations
-slug: Web/JavaScript/Referencia/Sentencies
+slug: Web/JavaScript/Reference/Statements
 tags:
   - JavaScript
   - NeedsTranslation
@@ -8,6 +8,7 @@ tags:
   - TopicStub
   - statements
 translation_of: Web/JavaScript/Reference/Statements
+original_slug: Web/JavaScript/Referencia/Sentencies
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/return/index.html b/files/ca/web/javascript/reference/statements/return/index.html
index 5b3c3e902a..dc3b43ed79 100644
--- a/files/ca/web/javascript/referencia/sentencies/return/index.html
+++ b/files/ca/web/javascript/reference/statements/return/index.html
@@ -1,7 +1,8 @@
 ---
 title: return
-slug: Web/JavaScript/Referencia/Sentencies/return
+slug: Web/JavaScript/Reference/Statements/return
 translation_of: Web/JavaScript/Reference/Statements/return
+original_slug: Web/JavaScript/Referencia/Sentencies/return
 ---
 <div>
 <div>{{jsSidebar("Statements")}}</div>
diff --git a/files/ca/web/javascript/referencia/sentencies/throw/index.html b/files/ca/web/javascript/reference/statements/throw/index.html
index 37d13b964b..55de3592c1 100644
--- a/files/ca/web/javascript/referencia/sentencies/throw/index.html
+++ b/files/ca/web/javascript/reference/statements/throw/index.html
@@ -1,7 +1,8 @@
 ---
 title: throw
-slug: Web/JavaScript/Referencia/Sentencies/throw
+slug: Web/JavaScript/Reference/Statements/throw
 translation_of: Web/JavaScript/Reference/Statements/throw
+original_slug: Web/JavaScript/Referencia/Sentencies/throw
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/web/javascript/referencia/sentencies/while/index.html b/files/ca/web/javascript/reference/statements/while/index.html
index d3997dbefd..072cad4cf7 100644
--- a/files/ca/web/javascript/referencia/sentencies/while/index.html
+++ b/files/ca/web/javascript/reference/statements/while/index.html
@@ -1,7 +1,8 @@
 ---
 title: while
-slug: Web/JavaScript/Referencia/Sentencies/while
+slug: Web/JavaScript/Reference/Statements/while
 translation_of: Web/JavaScript/Reference/Statements/while
+original_slug: Web/JavaScript/Referencia/Sentencies/while
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/ca/addició_de_motors_de_cerca_a_les_pàgines_web/index.html b/files/ca/web/opensearch/index.html
index adfa504760..55500ead3e 100644
--- a/files/ca/addició_de_motors_de_cerca_a_les_pàgines_web/index.html
+++ b/files/ca/web/opensearch/index.html
@@ -1,11 +1,12 @@
 ---
 title: Addició de motors de cerca a les pàgines web
-slug: Addició_de_motors_de_cerca_a_les_pàgines_web
+slug: Web/OpenSearch
 tags:
   - Complements
   - Connectors_de_cerca
 translation_of: Web/OpenSearch
 translation_of_original: Web/API/Window/sidebar/Adding_search_engines_from_Web_pages
+original_slug: Addició_de_motors_de_cerca_a_les_pàgines_web
 ---
 <p>El Firefox utilitza codi JavaScript per a instaŀlar connectors de motors de cerca. Pot fer servir 3 formats: MozSearch, OpenSearch i Sherlock.
 </p><p>Quan un codi JavaScript intenta instaŀlar un connector de cerca, el Firefox mostra un avís demanant a l'usuari permís per a instaŀlar-lo.
diff --git a/files/ca/web_development/mobile/responsive_design/index.html b/files/ca/web/progressive_web_apps/index.html
index 53bd5eb866..2b9254a061 100644
--- a/files/ca/web_development/mobile/responsive_design/index.html
+++ b/files/ca/web/progressive_web_apps/index.html
@@ -1,8 +1,9 @@
 ---
 title: Disseny sensible (Responsive design)
-slug: Web_Development/Mobile/Responsive_design
+slug: Web/Progressive_web_apps
 translation_of: Web/Progressive_web_apps
 translation_of_original: Web/Guide/Responsive_design
+original_slug: Web_Development/Mobile/Responsive_design
 ---
 <p>Com una resposta als problemes associats a l'enfoc de desenvolupament basat en dos <a href="/en/Web_Development/Mobile/Separate_sites" title="en/Web development/Mobile/Separate sites">dissenys web separats</a> per a cada plataforma, mòbil i escriptori, una idea relativament nova (de fet <a class="external" href="http://www.alistapart.com/articles/dao/">no tant</a>) ha crescut en popularitat: oblidar-se de la detecció del <em>user-agent</em> des del servidor, i sustituir-ho per una plana que respongui del costat del client a les possibilitats del navegador. Aquest enfoc del problema s'ha convingut en anomenar-lo <a class="external" href="http://www.alistapart.com/articles/responsive-web-design/">disseny web sensible</a>. Igual que l'enfoc dels dissenys separats, el disseny web sensible té els seus avantatges i inconvenients.</p>
 <h2 id="Avantatges">Avantatges</h2>
diff --git a/files/ca/web/guide/css/inici_en_css/mitjà/index.html b/files/ca/web/progressive_web_apps/responsive/media_types/index.html
index f3b14fb062..98b04144d1 100644
--- a/files/ca/web/guide/css/inici_en_css/mitjà/index.html
+++ b/files/ca/web/progressive_web_apps/responsive/media_types/index.html
@@ -1,9 +1,9 @@
 ---
 title: Mitjà
-slug: Web/Guide/CSS/Inici_en_CSS/Mitjà
+slug: Web/Progressive_web_apps/Responsive/Media_types
 tags:
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -12,6 +12,7 @@ tags:
   - NeedsUpdate
   - Web
 translation_of: Web/Progressive_web_apps/Responsive/Media_types
+original_slug: Web/Guide/CSS/Inici_en_CSS/Mitjà
 ---
 <p>{{CSSTutorialTOC}} {{previousPage("/en-US/docs/Web/Guide/CSS/Getting_Started/Tables", "Taules")}}</p>
 
diff --git a/files/ca/web/guide/css/inici_en_css/svg_i_css/index.html b/files/ca/web/svg/tutorial/svg_and_css/index.html
index 6dac20b5a6..6d729fdfe1 100644
--- a/files/ca/web/guide/css/inici_en_css/svg_i_css/index.html
+++ b/files/ca/web/svg/tutorial/svg_and_css/index.html
@@ -1,9 +1,9 @@
 ---
 title: SVG i CSS
-slug: Web/Guide/CSS/Inici_en_CSS/SVG_i_CSS
+slug: Web/SVG/Tutorial/SVG_and_CSS
 tags:
   - CSS
-  - 'CSS:Getting_Started'
+  - CSS:Getting_Started
   - Example
   - Guide
   - Intermediate
@@ -12,6 +12,7 @@ tags:
   - SVG
   - Web
 translation_of: Web/SVG/Tutorial/SVG_and_CSS
+original_slug: Web/Guide/CSS/Inici_en_CSS/SVG_i_CSS
 ---
 <div>{{CSSTutorialTOC}}</div>
 
diff --git a/files/de/_redirects.txt b/files/de/_redirects.txt
index f9d8a02fda..edfd74c3af 100644
--- a/files/de/_redirects.txt
+++ b/files/de/_redirects.txt
@@ -1,13 +1,14 @@
 # FROM-URL	TO-URL
 /de/docs/AJAX	/de/docs/Web/Guide/AJAX
 /de/docs/Apps/Progressiv	/de/docs/Web/Progressive_web_apps
-/de/docs/Barrierefreiheit	/de/docs/Web/Barrierefreiheit
-/de/docs/Barrierefreiheit/ARIA	/de/docs/Web/Barrierefreiheit/ARIA
-/de/docs/Barrierefreiheit/ARIA/ARIA_Live_Regionen	/de/docs/Web/Barrierefreiheit/ARIA/ARIA_Live_Regionen
-/de/docs/Barrierefreiheit/An_overview_of_accessible_web_applications_and_widgets	/de/docs/Web/Barrierefreiheit/An_overview_of_accessible_web_applications_and_widgets
-/de/docs/Barrierefreiheit/Webentwicklung	/de/docs/Web/Barrierefreiheit/Webentwicklung
+/de/docs/Barrierefreiheit	/de/docs/Web/Accessibility
+/de/docs/Barrierefreiheit/ARIA	/de/docs/Web/Accessibility/ARIA
+/de/docs/Barrierefreiheit/ARIA/ARIA_Live_Regionen	/de/docs/Web/Accessibility/ARIA/ARIA_Live_Regions
+/de/docs/Barrierefreiheit/An_overview_of_accessible_web_applications_and_widgets	/de/docs/Web/Accessibility/An_overview_of_accessible_web_applications_and_widgets
+/de/docs/Barrierefreiheit/Webentwicklung	/de/docs/conflicting/Web/Accessibility
+/de/docs/Benutzen_des_Zwischenspeichers_in_Firefox_1.5_(caching)	/de/docs/Mozilla/Firefox/Releases/1.5/Using_Firefox_1.5_caching
 /de/docs/Bug-Entdecken_Leitfaden	/de/docs/Richtlinien_zum_Schreiben_eines_Bugreports
-/de/docs/Building_an_Extension	/de/docs/Erweiterung_erstellen
+/de/docs/Building_an_Extension	/de/docs/conflicting/Mozilla/Add-ons
 /de/docs/CSS	/de/docs/Web/CSS
 /de/docs/CSS/-moz-border-radius	/de/docs/Web/CSS/border-radius
 /de/docs/CSS/-moz-border-radius-bottomleft	/de/docs/Web/CSS/border-bottom-left-radius
@@ -17,35 +18,35 @@
 /de/docs/CSS/-moz-box-shadow	/de/docs/Web/CSS/box-shadow
 /de/docs/CSS/-moz-image-region	/de/docs/Web/CSS/-moz-image-region
 /de/docs/CSS/-moz-user-input	/de/docs/Web/CSS/-moz-user-input
-/de/docs/CSS/-moz-user-modify	/de/docs/Web/CSS/-moz-user-modify
-/de/docs/CSS/-moz-user-select	/de/docs/Web/CSS/-moz-user-select
+/de/docs/CSS/-moz-user-modify	/de/docs/Web/CSS/user-modify
+/de/docs/CSS/-moz-user-select	/de/docs/Web/CSS/user-select
 /de/docs/CSS/:empty	/de/docs/Web/CSS/:empty
 /de/docs/CSS/:lang	/de/docs/Web/CSS/:lang
 /de/docs/CSS/@import	/de/docs/Web/CSS/@import
-/de/docs/CSS/Attributselektoren	/de/docs/Web/CSS/Attributselektoren
+/de/docs/CSS/Attributselektoren	/de/docs/Web/CSS/Attribute_selectors
 /de/docs/CSS/Border-bottom-width	/de/docs/Web/CSS/Border-bottom-width
 /de/docs/CSS/Border-left-width	/de/docs/Web/CSS/Border-left-width
 /de/docs/CSS/Border-right-width	/de/docs/Web/CSS/Border-right-width
 /de/docs/CSS/Border-top-width	/de/docs/Web/CSS/Border-top-width
 /de/docs/CSS/Bottom	/de/docs/Web/CSS/Bottom
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@@ -55,7 +56,7 @@
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@@ -121,20 +122,21 @@
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@@ -193,7 +195,7 @@
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@@ -204,6 +206,7 @@
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@@ -217,6 +220,7 @@
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@@ -224,30 +228,59 @@
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-/de/docs/WebGL/Texturen_in_WebGL_verwenden	/de/docs/Web/API/WebGL_API/Tutorial/Texturen_in_WebGL_verwenden
-/de/docs/Webbasierte_protokoll-handler	/de/docs/Web/API/Navigator/registerProtocolHandler/Webbasierte_protokoll-handler
+/de/docs/WebGL/3D-Objekte_mit_WebGL_erstellen	/de/docs/Web/API/WebGL_API/Tutorial/Creating_3D_objects_using_WebGL
+/de/docs/WebGL/Animierte_Texturen_in_WebGL	/de/docs/Web/API/WebGL_API/Tutorial/Animating_textures_in_WebGL
+/de/docs/WebGL/Beleuchtung_in_WebGL	/de/docs/Web/API/WebGL_API/Tutorial/Lighting_in_WebGL
+/de/docs/WebGL/Einführung_in_WebGL	/de/docs/Web/API/WebGL_API/Tutorial/Getting_started_with_WebGL
+/de/docs/WebGL/Farben_mittels_Shader_in_einen_WebGL-Kontext_hinzufügen	/de/docs/Web/API/WebGL_API/Tutorial/Using_shaders_to_apply_color_in_WebGL
+/de/docs/WebGL/Hinzufügen_von_2D_Inhalten_in_einen_WebGL-Kontext	/de/docs/Web/API/WebGL_API/Tutorial/Adding_2D_content_to_a_WebGL_context
+/de/docs/WebGL/Objekte_mit_WebGL_animieren	/de/docs/Web/API/WebGL_API/Tutorial/Animating_objects_with_WebGL
+/de/docs/WebGL/Texturen_in_WebGL_verwenden	/de/docs/Web/API/WebGL_API/Tutorial/Using_textures_in_WebGL
+/de/docs/WebSockets	/de/docs/Web/API/WebSockets_API
+/de/docs/WebSockets/Writing_WebSocket_servers	/de/docs/Web/API/WebSockets_API/Writing_WebSocket_servers
+/de/docs/Web_Development/Mobile	/de/docs/Web/Guide/Mobile
+/de/docs/Web_Development/Mobile/Responsive_design	/de/docs/conflicting/Web/Progressive_web_apps
+/de/docs/Webbasierte_protokoll-handler	/de/docs/Web/API/Navigator/registerProtocolHandler/Web-based_protocol_handlers
+/de/docs/Webentwicklung	/de/docs/conflicting/Web/Guide
 /de/docs/Werkzeuge	/de/docs/Tools
-/de/docs/XML_Einführung	/de/docs/Web/XML/XML_Einführung
+/de/docs/XML_Einführung	/de/docs/Web/XML/XML_introduction
 /de/docs/XSLT	/de/docs/Web/XSLT
-/de/docs/Zugriff_auf_Dateien_von_Webapplikationen	/de/docs/Web/API/File/Zugriff_auf_Dateien_von_Webapplikationen
+/de/docs/Zugriff_auf_Dateien_von_Webapplikationen	/de/docs/Web/API/File/Using_files_from_web_applications
 /de/docs/en	/en-US/
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diff --git a/files/de/_wikihistory.json b/files/de/_wikihistory.json
index 66f75b8ac8..4da1fe1867 100644
--- a/files/de/_wikihistory.json
+++ b/files/de/_wikihistory.json
@@ -1,136 +1,4 @@
 {
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-      "fscholz",
-      "Crash",
-      "Takenbot",
-      "M@d Man"
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-      "fscholz",
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-      "Agoist",
-      "Umifa",
-      "Crash"
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-  "Firefox_1.5_für_Entwickler/Changing_the_priority_of_HTTP_requests": {
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-    "contributors": [
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-  "Firefox_3.5_für_Entwickler": {
-    "modified": "2019-03-24T00:04:29.361Z",
-    "contributors": [
-      "wbamberg",
-      "Timmi",
-      "fscholz",
-      "niels"
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-  "Firefox_3_für_Entwickler": {
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-    "contributors": [
-      "wbamberg",
-      "fscholz",
-      "niels",
-      "Lukas Skywalker"
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   "Games": {
     "modified": "2019-09-09T15:31:03.156Z",
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@@ -219,14 +87,6 @@
       "Tyrandus"
     ]
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-  "Glossary/Abstraktion": {
-    "modified": "2019-03-23T22:15:58.737Z",
-    "contributors": [
-      "Sebastianz",
-      "ursingold",
-      "t1m0fej"
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   "Glossary/Accessibility": {
     "modified": "2019-03-18T21:41:37.798Z",
     "contributors": [
@@ -239,20 +99,6 @@
       "duckymirror"
     ]
   },
-  "Glossary/Algorithmus": {
-    "modified": "2019-03-23T22:10:22.994Z",
-    "contributors": [
-      "herbmaier",
-      "Tyrandus"
-    ]
-  },
-  "Glossary/Anweisung": {
-    "modified": "2019-04-20T19:38:11.191Z",
-    "contributors": [
-      "GreenPepper",
-      "Tyrandus"
-    ]
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   "Glossary/Apple_Safari": {
     "modified": "2019-03-23T22:12:52.875Z",
     "contributors": [
@@ -266,12 +112,6 @@
       "Siphalor"
     ]
   },
-  "Glossary/Asynchron": {
-    "modified": "2019-06-18T06:50:55.111Z",
-    "contributors": [
-      "dbraun"
-    ]
-  },
   "Glossary/Attribute": {
     "modified": "2019-03-23T22:12:44.567Z",
     "contributors": [
@@ -279,13 +119,6 @@
       "Siphalor"
     ]
   },
-  "Glossary/Bandbreite": {
-    "modified": "2019-03-23T22:08:37.747Z",
-    "contributors": [
-      "sigoa",
-      "Rebecca70"
-    ]
-  },
   "Glossary/Block": {
     "modified": "2019-03-23T22:10:15.560Z",
     "contributors": [
@@ -343,12 +176,6 @@
       "timvancleef"
     ]
   },
-  "Glossary/CORS-zugelassener-anfrage-header": {
-    "modified": "2020-01-30T18:28:06.437Z",
-    "contributors": [
-      "TorbenKoehn"
-    ]
-  },
   "Glossary/CRLF": {
     "modified": "2019-07-03T15:43:20.749Z",
     "contributors": [
@@ -364,12 +191,6 @@
       "Siphalor"
     ]
   },
-  "Glossary/CSS_Praeprozessor": {
-    "modified": "2019-03-18T21:36:27.239Z",
-    "contributors": [
-      "Sixl-Daniel"
-    ]
-  },
   "Glossary/Cache": {
     "modified": "2019-03-18T21:14:43.666Z",
     "contributors": [
@@ -455,24 +276,12 @@
       "PercyGitarrist"
     ]
   },
-  "Glossary/DTD": {
-    "modified": "2019-07-04T23:44:01.071Z",
-    "contributors": [
-      "PercyGitarrist"
-    ]
-  },
   "Glossary/Data_structure": {
     "modified": "2019-07-16T20:37:24.466Z",
     "contributors": [
       "christianheinrichs"
     ]
   },
-  "Glossary/Datenkapselung": {
-    "modified": "2020-09-30T06:05:42.392Z",
-    "contributors": [
-      "Klingohle"
-    ]
-  },
   "Glossary/Denial_of_Service": {
     "modified": "2019-01-17T02:56:58.052Z",
     "contributors": [
@@ -544,12 +353,6 @@
       "Klingohle"
     ]
   },
-  "Glossary/Funktion_erster-Klasse": {
-    "modified": "2019-03-18T21:30:30.219Z",
-    "contributors": [
-      "king-tom"
-    ]
-  },
   "Glossary/GPU": {
     "modified": "2019-01-17T02:50:36.393Z",
     "contributors": [
@@ -608,13 +411,6 @@
       "cob"
     ]
   },
-  "Glossary/Herstellerpräfix": {
-    "modified": "2019-03-23T22:29:22.756Z",
-    "contributors": [
-      "Tyrandus",
-      "1903Daniel"
-    ]
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   "Glossary/Hoisting": {
     "modified": "2019-03-18T20:48:10.960Z",
     "contributors": [
@@ -670,12 +466,6 @@
       "PercyGitarrist"
     ]
   },
-  "Glossary/Informationsarchitektur": {
-    "modified": "2019-03-18T21:18:25.933Z",
-    "contributors": [
-      "tschach"
-    ]
-  },
   "Glossary/Internet": {
     "modified": "2019-03-23T22:09:31.438Z",
     "contributors": [
@@ -705,24 +495,6 @@
       "Siphalor"
     ]
   },
-  "Glossary/Klasse": {
-    "modified": "2019-03-18T21:37:57.063Z",
-    "contributors": [
-      "duckymirror"
-    ]
-  },
-  "Glossary/Konstruktor": {
-    "modified": "2019-03-23T22:04:35.334Z",
-    "contributors": [
-      "klug_mario"
-    ]
-  },
-  "Glossary/Leeres_Element": {
-    "modified": "2019-03-18T21:32:36.396Z",
-    "contributors": [
-      "axelrindle"
-    ]
-  },
   "Glossary/Local_scope": {
     "modified": "2020-04-28T14:50:32.479Z",
     "contributors": [
@@ -792,12 +564,6 @@
       "CloudMaker97"
     ]
   },
-  "Glossary/Objekt": {
-    "modified": "2019-03-23T22:08:37.828Z",
-    "contributors": [
-      "LazerPhil"
-    ]
-  },
   "Glossary/Operand": {
     "modified": "2020-04-28T14:20:36.934Z",
     "contributors": [
@@ -835,12 +601,6 @@
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-  "Glossary/Protokoll": {
-    "modified": "2019-03-23T22:09:31.349Z",
-    "contributors": [
-      "Anonymous"
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   "Glossary/Prototype": {
     "modified": "2020-07-08T01:49:32.204Z",
     "contributors": [
@@ -981,12 +741,6 @@
       "Shiryk"
     ]
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-  "Glossary/Typ": {
-    "modified": "2020-04-04T13:54:03.839Z",
-    "contributors": [
-      "axelrindle"
-    ]
-  },
   "Glossary/Type_Conversion": {
     "modified": "2020-04-04T13:56:57.290Z",
     "contributors": [
@@ -1124,13 +878,6 @@
       "CloudMaker97"
     ]
   },
-  "Glossary/einfache_datenelemente": {
-    "modified": "2019-03-23T22:46:44.221Z",
-    "contributors": [
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-      "andreas_inkoeln"
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   "Glossary/firewall": {
     "modified": "2019-07-16T21:05:22.003Z",
     "contributors": [
@@ -1162,12 +909,6 @@
       "Siphalor"
     ]
   },
-  "Glossary/verbotener_header_name": {
-    "modified": "2019-03-23T22:03:16.612Z",
-    "contributors": [
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-    ]
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   "Glossary/webm": {
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     "contributors": [
@@ -1230,12 +971,6 @@
       "hellschu"
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-  "Learn/CSS/Building_blocks/Werten_Einheiten": {
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   "Learn/CSS/CSS_layout": {
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     "contributors": [
@@ -1270,13 +1005,6 @@
       "LH-10"
     ]
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-  "Learn/Common_questions/Wie_das_Internet_funktioniert": {
-    "modified": "2020-07-16T22:35:36.371Z",
-    "contributors": [
-      "frankwinter",
-      "NetiHeft"
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   "Learn/Getting_started_with_the_web": {
     "modified": "2020-11-24T12:50:40.168Z",
     "contributors": [
@@ -1334,24 +1062,6 @@
       "d_jan"
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-  "Learn/Getting_started_with_the_web/JavaScript_basis": {
-    "modified": "2020-07-16T22:35:08.850Z",
-    "contributors": [
-      "jorgemontoyab",
-      "urewig",
-      "loicyondjeu",
-      "ilonaherr",
-      "SaschaHeyer",
-      "fxmt",
-      "Shidigital",
-      "hapeit",
-      "danielsimon1",
-      "nuracubeTranslations",
-      "QuaGS",
-      "monja-schreppel",
-      "Purple-Vampire"
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   "Learn/Getting_started_with_the_web/Publishing_your_website": {
     "modified": "2020-07-16T22:34:23.783Z",
     "contributors": [
@@ -1372,24 +1082,6 @@
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-  "Learn/Getting_started_with_the_web/Wie_das_Internet_funktioniert": {
-    "modified": "2020-07-16T22:33:59.338Z",
-    "contributors": [
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-  "Learn/Getting_started_with_the_web/dateien_nutzen": {
-    "modified": "2020-07-16T22:34:32.214Z",
-    "contributors": [
-      "michaelhochleitner",
-      "Aryx",
-      "vosspl",
-      "Shidigital",
-      "Bissmarc",
-      "janjo",
-      "d_jan"
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   "Learn/HTML": {
     "modified": "2020-07-16T22:22:15.700Z",
     "contributors": [
@@ -1401,88 +1093,6 @@
       "Trollderim"
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-    "modified": "2020-07-16T22:22:45.948Z",
-    "contributors": [
-      "PercyGitarrist",
-      "mprofitl",
-      "LeifMensing",
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-  "Learn/HTML/Einführung_in_HTML/Der_Kopf_Metadaten_in_HTML": {
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-    "modified": "2020-07-16T22:24:03.053Z",
-    "contributors": [
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-      "fdeberle",
-      "Shidigital",
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-  },
-  "Learn/HTML/Einführung_in_HTML/Einfache_Textformatierung_in_HTML": {
-    "modified": "2020-07-16T22:23:30.695Z",
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-      "Shidigital"
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-  "Learn/HTML/Einführung_in_HTML/Erstellen_von_Hyperlinks": {
-    "modified": "2020-07-16T22:23:43.017Z",
-    "contributors": [
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-  "Learn/HTML/Einführung_in_HTML/Fehlersuche_in_HTML": {
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-      "Shidigital"
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-  "Learn/HTML/Einführung_in_HTML/Fortgeschrittene_Textformatierung": {
-    "modified": "2020-07-16T22:23:51.933Z",
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@@ -1502,12 +1112,6 @@
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-    "modified": "2020-07-16T22:25:19.143Z",
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-      "GiovanniHD201E"
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@@ -1515,19 +1119,6 @@
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-  "Learn/JavaScript/Bausteine/Ereignisse": {
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-    "contributors": [
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-      "GiovanniHD201E"
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     "modified": "2020-07-16T22:29:48.847Z",
     "contributors": [
@@ -1535,13 +1126,6 @@
       "Elllenn"
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-    "modified": "2020-07-16T22:30:16.778Z",
-    "contributors": [
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-      "Thomas-Zenkel"
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   "Learn/JavaScript/First_steps/Useful_string_methods": {
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     "contributors": [
@@ -1555,24 +1139,6 @@
       "mermolaev"
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-  "Learn/JavaScript/First_steps/Was_ist_JavaScript": {
-    "modified": "2020-09-29T09:38:57.543Z",
-    "contributors": [
-      "Devoryo",
-      "mchoeti",
-      "GreenPepper",
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-      "Bissmarc",
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-      "JorisGutjahr"
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-  "Learn/JavaScript/First_steps/lustige_geschichten_generator": {
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-      "Strubinator"
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@@ -10068,23 +7974,6 @@
       "schlagi123"
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@@ -10092,23 +7981,6 @@
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@@ -10138,14 +8010,6 @@
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@@ -10154,14 +8018,6 @@
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@@ -10176,31 +8032,6 @@
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@@ -10231,508 +8062,6 @@
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@@ -10754,26 +8083,6 @@
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@@ -10813,14 +8122,6 @@
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@@ -10873,14 +8174,6 @@
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@@ -11274,12 +8567,6 @@
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@@ -14762,12 +11606,6 @@
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@@ -14784,7 +11622,2656 @@
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       "ExE-Boss",
@@ -14796,41 +14283,554 @@
       "M@d Man"
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       "mvb1996"
     ]
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     "contributors": [
       "otde2016"
     ]
   },
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+    "modified": "2019-03-23T22:45:11.820Z",
+    "contributors": [
+      "Sebastianz",
+      "teoli"
+    ]
+  },
+  "Web/CSS/Compositing_and_Blending": {
+    "modified": "2019-03-23T22:41:20.151Z",
+    "contributors": [
+      "Sebastianz"
+    ]
+  },
+  "conflicting/Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox": {
+    "modified": "2019-03-18T20:58:13.468Z",
+    "contributors": [
+      "KadirTopal",
+      "wiegels",
+      "AccNeeder",
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+      "thorsten.rinne",
+      "fscholz",
+      "elker",
+      "thandwerker",
+      "Honig"
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+  "conflicting/Web/CSS/CSS_Basic_User_Interface": {
+    "modified": "2019-03-23T22:43:34.455Z",
+    "contributors": [
+      "SphinxKnight",
+      "ExE-Boss",
+      "Sebastianz"
+    ]
+  },
+  "Web/CSS/gap": {
+    "modified": "2020-10-15T22:00:43.740Z",
+    "contributors": [
+      "AlexWayhill",
+      "Craeckerffm"
+    ]
+  },
+  "conflicting/Web/CSS/float": {
+    "modified": "2019-03-23T23:23:49.504Z",
+    "contributors": [
+      "SJW"
+    ]
+  },
+  "conflicting/Web/CSS/font-variant": {
+    "modified": "2019-03-23T23:23:47.885Z",
+    "contributors": [
+      "dio",
+      "SJW"
+    ]
+  },
+  "Web/CSS/url()": {
+    "modified": "2020-10-15T22:01:29.787Z",
+    "contributors": [
+      "valentinprotiuc"
+    ]
+  },
+  "conflicting/Learn/CSS/Building_blocks/Values_and_units": {
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+    "contributors": [
+      "spiegelp",
+      "thkoch"
+    ]
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+    "modified": "2019-03-24T00:05:49.642Z",
+    "contributors": [
+      "teoli",
+      "fscholz",
+      "DavidWalsh"
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+    "modified": "2019-03-23T22:49:16.030Z",
+    "contributors": [
+      "spiegelp"
+    ]
+  },
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+    "modified": "2019-03-23T22:41:33.439Z",
+    "contributors": [
+      "spiegelp"
+    ]
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+    "contributors": [
+      "woiddale",
+      "spiegelp",
+      "hpkainz"
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+  "Learn/CSS/Styling_text/Fundamentals": {
+    "modified": "2019-03-23T22:49:16.242Z",
+    "contributors": [
+      "spiegelp"
+    ]
+  },
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+    "modified": "2020-05-05T12:04:06.710Z",
+    "contributors": [
+      "Helge-HH",
+      "fhwfzfge",
+      "msc1979",
+      "fscholz",
+      "Palmstroem",
+      "barning"
+    ]
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+    "contributors": [
+      "fhwfzfge",
+      "Palmstroem"
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+    "contributors": [
+      "Palmstroem"
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+  "Web/CSS/CSS_Backgrounds_and_Borders/Resizing_background_images": {
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+    "contributors": [
+      "sos4nt",
+      "mrstork",
+      "webwirbel"
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+    "contributors": [
+      "Sheppy"
+    ]
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+    "modified": "2019-03-23T23:37:56.525Z",
+    "contributors": [
+      "gk-freiheit",
+      "rawcat",
+      "teoli",
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+      "jwl"
+    ]
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+      "ant1d0t",
+      "nemo182",
+      "christianhegedues",
+      "BurnerPat",
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+      "neverendingo",
+      "creitiv",
+      "DunklesBlut88",
+      "paesku",
+      "bricks",
+      "fabiankreutz",
+      "spiegelp"
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+    "modified": "2020-10-15T22:01:15.339Z",
+    "contributors": [
+      "schlagi123"
+    ]
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+    "modified": "2020-10-15T21:45:26.885Z",
+    "contributors": [
+      "schlagi123"
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+    "modified": "2020-10-15T21:46:53.689Z",
+    "contributors": [
+      "schlagi123"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/Date": {
+    "modified": "2020-10-15T21:45:25.297Z",
+    "contributors": [
+      "schlagi123",
+      "Schollator"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/Error": {
+    "modified": "2020-10-15T21:46:17.159Z",
+    "contributors": [
+      "schlagi123"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/EvalError": {
+    "modified": "2020-10-15T22:01:29.746Z",
+    "contributors": [
+      "schlagi123"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/Function": {
+    "modified": "2020-10-15T22:01:36.587Z",
+    "contributors": [
+      "xdevs23",
+      "schlagi123"
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/GeneratorFunction": {
+    "modified": "2020-10-15T22:02:06.474Z",
+    "contributors": [
+      "schlagi123"
+    ]
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+    "modified": "2020-10-15T22:02:05.813Z",
+    "contributors": [
+      "schlagi123"
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+    "contributors": [
+      "fscholz",
+      "schlagi123"
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+    "modified": "2020-10-15T21:46:02.893Z",
+    "contributors": [
+      "fscholz",
+      "schlagi123"
+    ]
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+    "modified": "2020-10-15T22:03:24.903Z",
+    "contributors": [
+      "fscholz",
+      "schlagi123"
+    ]
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+    "modified": "2020-10-15T22:01:26.449Z",
+    "contributors": [
+      "Morphbreed",
+      "schlagi123"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/Number": {
+    "modified": "2020-10-15T21:45:14.479Z",
+    "contributors": [
+      "schlagi123",
+      "doeck"
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+    "contributors": [
+      "peter30mar2017",
+      "fl1p"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/RangeError": {
+    "modified": "2019-03-23T22:12:08.670Z",
+    "contributors": [
+      "ThomasFe"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/String": {
+    "modified": "2020-10-15T22:24:44.810Z",
+    "contributors": [
+      "Symtex99"
+    ]
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+  "conflicting/Web/JavaScript/Reference/Global_Objects/SyntaxError": {
+    "modified": "2020-10-15T21:46:29.639Z",
+    "contributors": [
+      "schlagi123"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Global_Objects/TypeError": {
+    "modified": "2020-10-15T21:58:39.373Z",
+    "contributors": [
+      "schlagi123",
+      "Sheggy"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators": {
+    "modified": "2020-10-15T21:51:28.246Z",
+    "contributors": [
+      "fscholz",
+      "kaljak",
+      "schlagi123",
+      "mizhac",
+      "MemoWalk"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators_8b4515dbed18a24ecb01bfe0755ca163": {
+    "modified": "2020-10-15T21:43:07.470Z",
+    "contributors": [
+      "schlagi123",
+      "LeisureLarry",
+      "Webastronaut"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators/Spread_syntax": {
+    "modified": "2020-03-12T19:42:35.849Z",
+    "contributors": [
+      "developitz",
+      "mschleeweiss",
+      "kdex",
+      "theRealBaccata",
+      "schlagi123",
+      "sbusch",
+      "olhaar"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators_5b3986b830cf68059c03079ef10ff039": {
+    "modified": "2020-10-15T21:37:40.074Z",
+    "contributors": [
+      "Hocdoc",
+      "christophfriedrich",
+      "schlagi123",
+      "Elyasin",
+      "loki"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Operators_bf514126b51a6e9b7591809ecc554076": {
+    "modified": "2020-10-15T21:48:40.239Z",
+    "contributors": [
+      "wbamberg",
+      "schlagi123"
+    ]
+  },
+  "conflicting/Web/JavaScript/Reference/Statements/switch": {
+    "modified": "2020-10-15T21:46:29.118Z",
+    "contributors": [
+      "schlagi123",
+      "eluchsinger"
+    ]
+  },
+  "conflicting/Web/Web_Components/Using_custom_elements": {
+    "modified": "2019-03-23T22:05:53.556Z",
+    "contributors": [
+      "amelzer"
+    ]
+  },
+  "conflicting/Web/API": {
+    "modified": "2019-03-23T23:21:31.048Z",
+    "contributors": [
+      "wbamberg",
+      "fscholz",
+      "casarock",
+      "sbarthel",
+      "TitanNano"
+    ]
+  },
+  "conflicting/Web/Guide": {
     "modified": "2019-03-24T00:03:49.652Z",
     "contributors": [
       "TornadoIDS",
diff --git a/files/de/glossary/dtd/index.html b/files/de/conflicting/glossary/doctype/index.html
index 21847d1d09..1e8e143036 100644
--- a/files/de/glossary/dtd/index.html
+++ b/files/de/conflicting/glossary/doctype/index.html
@@ -1,6 +1,6 @@
 ---
 title: DTD
-slug: Glossary/DTD
+slug: conflicting/Glossary/Doctype
 tags:
   - CodingScripting
   - Document
@@ -8,5 +8,6 @@ tags:
   - HTML
 translation_of: Glossary/Doctype
 translation_of_original: Glossary/DTD
+original_slug: Glossary/DTD
 ---
 <p>{{page("/de/docs/Glossary/Doctype")}}</p>
diff --git a/files/de/web/guide/css/getting_started/farbe/index.html b/files/de/conflicting/learn/css/building_blocks/values_and_units/index.html
index be9302eb6e..12f194ed66 100644
--- a/files/de/web/guide/css/getting_started/farbe/index.html
+++ b/files/de/conflicting/learn/css/building_blocks/values_and_units/index.html
@@ -1,8 +1,9 @@
 ---
 title: Color
-slug: Web/Guide/CSS/Getting_started/Farbe
+slug: conflicting/Learn/CSS/Building_blocks/Values_and_units
 translation_of: Learn/CSS/Introduction_to_CSS/Values_and_units#Colors
 translation_of_original: Web/Guide/CSS/Getting_started/Color
+original_slug: Web/Guide/CSS/Getting_started/Farbe
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/de/web/guide/css/getting_started/why_use_css/index.html b/files/de/conflicting/learn/css/first_steps/how_css_works/index.html
index 01933a9171..a9787ad03f 100644
--- a/files/de/web/guide/css/getting_started/why_use_css/index.html
+++ b/files/de/conflicting/learn/css/first_steps/how_css_works/index.html
@@ -1,8 +1,9 @@
 ---
 title: Why use CSS?
-slug: Web/Guide/CSS/Getting_started/Why_use_CSS
+slug: conflicting/Learn/CSS/First_steps/How_CSS_works
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/Why_use_CSS
+original_slug: Web/Guide/CSS/Getting_started/Why_use_CSS
 ---
 <p><span style="line-height: 1.5;">{{ CSSTutorialTOC() }}</span></p>
 
diff --git a/files/de/web/guide/css/getting_started/wie_css_funktioniert/index.html b/files/de/conflicting/learn/css/first_steps/how_css_works_0e31d13696060558e208fc6c734ae400/index.html
index 8e980ce43c..9a5325863a 100644
--- a/files/de/web/guide/css/getting_started/wie_css_funktioniert/index.html
+++ b/files/de/conflicting/learn/css/first_steps/how_css_works_0e31d13696060558e208fc6c734ae400/index.html
@@ -1,8 +1,10 @@
 ---
 title: Wie CSS funktioniert
-slug: Web/Guide/CSS/Getting_started/Wie_CSS_funktioniert
+slug: >-
+  conflicting/Learn/CSS/First_steps/How_CSS_works_0e31d13696060558e208fc6c734ae400
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/How_CSS_works
+original_slug: Web/Guide/CSS/Getting_started/Wie_CSS_funktioniert
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/de/web/guide/css/getting_started/index.html b/files/de/conflicting/learn/css/first_steps/index.html
index 9472041b96..cd2ed7137a 100644
--- a/files/de/web/guide/css/getting_started/index.html
+++ b/files/de/conflicting/learn/css/first_steps/index.html
@@ -1,11 +1,12 @@
 ---
 title: Einführung
-slug: Web/Guide/CSS/Getting_started
+slug: conflicting/Learn/CSS/First_steps
 tags:
   - CSS
-  - 'CSS:Einführung'
+  - CSS:Einführung
 translation_of: Learn/CSS/First_steps
 translation_of_original: Web/Guide/CSS/Getting_started
+original_slug: Web/Guide/CSS/Getting_started
 ---
 <h3 id="Einleitung">Einleitung</h3>
 <p>Dieser Artikel stellt eine Einführung in Cascading Style Sheets (CSS) dar.</p>
diff --git a/files/de/web/javascript/introduction_to_object-oriented_javascript/index.html b/files/de/conflicting/learn/javascript/objects/index.html
index 41d67bc025..d09b4c33bc 100644
--- a/files/de/web/javascript/introduction_to_object-oriented_javascript/index.html
+++ b/files/de/conflicting/learn/javascript/objects/index.html
@@ -1,6 +1,6 @@
 ---
 title: Einführung in objektorientiertes JavaScript
-slug: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
+slug: conflicting/Learn/JavaScript/Objects
 tags:
   - Constructor
   - Encapsulation
@@ -14,6 +14,7 @@ tags:
   - Object-Oriented
 translation_of: Learn/JavaScript/Objects
 translation_of_original: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
+original_slug: Web/JavaScript/Introduction_to_Object-Oriented_JavaScript
 ---
 <div>{{jsSidebar("Introductory")}}</div>
 
diff --git a/files/de/mdn/contribute/zu_tun_im_mdn/index.html b/files/de/conflicting/mdn/contribute/getting_started/index.html
index 84ae882896..4a36d8078f 100644
--- a/files/de/mdn/contribute/zu_tun_im_mdn/index.html
+++ b/files/de/conflicting/mdn/contribute/getting_started/index.html
@@ -1,12 +1,13 @@
 ---
 title: Was alles im MDN zu tun ist
-slug: MDN/Contribute/zu_tun_im_MDN
+slug: conflicting/MDN/Contribute/Getting_started
 tags:
   - Anleitung
   - Guide
   - MDN
 translation_of: MDN/Contribute/Getting_started
 translation_of_original: MDN/Contribute/Tasks
+original_slug: MDN/Contribute/zu_tun_im_MDN
 ---
 <div>{{MDNSidebar}}</div><p>Du willst das MDN besser machen? Es gibt viele Wege, wie du helfen kannst: du kannst Tippfehler verbessern, neue Inhalte verfassen, du kannst sogar die <a href="/en-US/docs/Project:MDN/Kuma">Kuma</a> Plattform verbessern, auf welcher diese Seite aufbaut. Der Artikel "<a href="https://developer.mozilla.org/de/docs/MDN/Contribute">Beitragen zu MDN</a>" deckt alle Möglichkeiten ab, wobei und wie du uns helfen könntest. Unten findest du eine etwas spezifischere Liste an Aufgaben die erledigt werden müssen.</p>
 
diff --git a/files/de/mdn_at_ten/zum_mdn_beitragen/index.html b/files/de/conflicting/mdn/contribute/index.html
index 7fc3bce3fa..07d2219443 100644
--- a/files/de/mdn_at_ten/zum_mdn_beitragen/index.html
+++ b/files/de/conflicting/mdn/contribute/index.html
@@ -1,10 +1,11 @@
 ---
 title: Zum MDN beitragen
-slug: MDN_at_ten/Zum_MDN_beitragen
+slug: conflicting/MDN/Contribute
 tags:
   - MDN Meta
   - Mitmachen
 translation_of: MDN_at_ten/Contributing_to_MDN
+original_slug: MDN_at_ten/Zum_MDN_beitragen
 ---
 <div class="column-container">
 <div class="column-8">
diff --git a/files/de/erweiterung_erstellen/index.html b/files/de/conflicting/mozilla/add-ons/index.html
index 7d2d7a72b0..1a3425a085 100644
--- a/files/de/erweiterung_erstellen/index.html
+++ b/files/de/conflicting/mozilla/add-ons/index.html
@@ -1,10 +1,11 @@
 ---
 title: Erweiterung erstellen
-slug: Erweiterung_erstellen
+slug: conflicting/Mozilla/Add-ons
 tags:
   - Erweiterungen
 translation_of: Mozilla/Add-ons
 translation_of_original: Building_an_Extension
+original_slug: Erweiterung_erstellen
 ---
 <h4 id="Schnellstart">Schnellstart</h4>
 <div>
diff --git a/files/de/web/barrierefreiheit/webentwicklung/index.html b/files/de/conflicting/web/accessibility/index.html
index 363f4646da..05ca68042d 100644
--- a/files/de/web/barrierefreiheit/webentwicklung/index.html
+++ b/files/de/conflicting/web/accessibility/index.html
@@ -1,8 +1,9 @@
 ---
 title: Webentwicklung
-slug: Web/Barrierefreiheit/Webentwicklung
+slug: conflicting/Web/Accessibility
 translation_of: Web/Accessibility
 translation_of_original: Web/Accessibility/Web_Development
+original_slug: Web/Barrierefreiheit/Webentwicklung
 ---
 <p> </p>
 
diff --git a/files/de/dom/ueber_das_document_object_model/index.html b/files/de/conflicting/web/api/document_object_model/index.html
index 2b8856fa6f..5378702f04 100644
--- a/files/de/dom/ueber_das_document_object_model/index.html
+++ b/files/de/conflicting/web/api/document_object_model/index.html
@@ -1,10 +1,11 @@
 ---
 title: Über das Document Object Model
-slug: DOM/Ueber_das_Document_Object_Model
+slug: conflicting/Web/API/Document_Object_Model
 tags:
   - DOM
 translation_of: Web/API/Document_Object_Model
 translation_of_original: DOM/About_the_Document_Object_Model
+original_slug: DOM/Ueber_das_Document_Object_Model
 ---
 <h3 id="What_is_the_DOM.3F" name="What_is_the_DOM.3F">Was ist das DOM?</h3>
 
diff --git a/files/de/web/guide/dom/index.html b/files/de/conflicting/web/api/document_object_model_656f0e51418b39c498011268be9b3a10/index.html
index fc26bc0bee..9e3c7c7c46 100644
--- a/files/de/web/guide/dom/index.html
+++ b/files/de/conflicting/web/api/document_object_model_656f0e51418b39c498011268be9b3a10/index.html
@@ -1,6 +1,6 @@
 ---
 title: DOM developer guide
-slug: Web/Guide/DOM
+slug: conflicting/Web/API/Document_Object_Model_656f0e51418b39c498011268be9b3a10
 tags:
   - API
   - DOM
@@ -9,6 +9,7 @@ tags:
   - TopicStub
 translation_of: Web/API/Document_Object_Model
 translation_of_original: Web/Guide/API/DOM
+original_slug: Web/Guide/DOM
 ---
 <p>{{draft}}</p>
 <p>The <a href="/docs/DOM">Document Object Model</a> is an API for <a href="/en-US/docs/HTML">HTML</a> and <a href="/en-US/docs/XML">XML</a> documents. It provides a structural representation of the document, enabling the developer to modify its content and visual presentation. Essentially, it connects web pages to scripts or programming languages.</p>
diff --git a/files/de/web/webapi/index.html b/files/de/conflicting/web/api/index.html
index 0726dd787a..cc4ef0187c 100644
--- a/files/de/web/webapi/index.html
+++ b/files/de/conflicting/web/api/index.html
@@ -1,6 +1,6 @@
 ---
 title: WebAPI
-slug: Web/WebAPI
+slug: conflicting/Web/API
 tags:
   - Apps
   - DOM
@@ -8,6 +8,7 @@ tags:
   - Mobile
 translation_of: Web/API
 translation_of_original: WebAPI
+original_slug: Web/WebAPI
 ---
 <p><strong>WebAPI</strong> ist ein Begriff, der auf eine Palette von Zugangs APIs verweist, die Web-Anwendungen erlaubt auf Geräte-Hardware (wie z. B. den Batteriestatus oder die Vibrations Hardware) zu zugreifen. Der Zugriff auf Daten (z. B. Kalender oder Kontakte), die auf dem Gerät gespeichert wurden ist ebenso möglich. Durch das Hinzufügen dieser APIs, hoffen wir, dass das Web um Funktionen erweitert wird, die proprietär Plattformen schon länger bereitstellen.</p>
 
diff --git a/files/de/web/api/windowtimers/index.html b/files/de/conflicting/web/api/windoworworkerglobalscope/index.html
index 67f9f76863..b6127c730b 100644
--- a/files/de/web/api/windowtimers/index.html
+++ b/files/de/conflicting/web/api/windoworworkerglobalscope/index.html
@@ -1,6 +1,6 @@
 ---
 title: WindowTimers
-slug: Web/API/WindowTimers
+slug: conflicting/Web/API/WindowOrWorkerGlobalScope
 tags:
   - API
   - HTML-DOM
@@ -11,6 +11,7 @@ tags:
   - Workers
 translation_of: Web/API/WindowOrWorkerGlobalScope
 translation_of_original: Web/API/WindowTimers
+original_slug: Web/API/WindowTimers
 ---
 <div>{{APIRef("HTML DOM")}}</div>
 
diff --git a/files/de/web/css/_doublecolon_-moz-placeholder/index.html b/files/de/conflicting/web/css/_doublecolon_placeholder/index.html
index eb6775111e..40df58fe68 100644
--- a/files/de/web/css/_doublecolon_-moz-placeholder/index.html
+++ b/files/de/conflicting/web/css/_doublecolon_placeholder/index.html
@@ -1,13 +1,14 @@
 ---
 title: '::-moz-placeholder'
-slug: 'Web/CSS/::-moz-placeholder'
+slug: conflicting/Web/CSS/::placeholder
 tags:
   - CSS
   - CSS Pseudo-class
   - CSS Reference
   - Non-standard
-translation_of: 'Web/CSS/::placeholder'
-translation_of_original: 'Web/CSS/::-moz-placeholder'
+translation_of: Web/CSS/::placeholder
+translation_of_original: Web/CSS/::-moz-placeholder
+original_slug: Web/CSS/::-moz-placeholder
 ---
 <div>{{Non-standard_header}}{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_user_interface/index.html b/files/de/conflicting/web/css/css_basic_user_interface/index.html
index 7ee80c0eef..0fc6315c11 100644
--- a/files/de/web/css/css_user_interface/index.html
+++ b/files/de/conflicting/web/css/css_basic_user_interface/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS User Interface
-slug: Web/CSS/CSS_User_Interface
+slug: conflicting/Web/CSS/CSS_Basic_User_Interface
 tags:
   - CSS
   - CSS Basic User Interface
@@ -8,6 +8,7 @@ tags:
   - Übersicht
 translation_of: Web/CSS/CSS_Basic_User_Interface
 translation_of_original: Web/CSS/CSS_User_Interface
+original_slug: Web/CSS/CSS_User_Interface
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_flexible_box_layout/using_css_flexible_boxes/index.html b/files/de/conflicting/web/css/css_flexible_box_layout/basic_concepts_of_flexbox/index.html
index 38d6da7946..94036aefdd 100644
--- a/files/de/web/css/css_flexible_box_layout/using_css_flexible_boxes/index.html
+++ b/files/de/conflicting/web/css/css_flexible_box_layout/basic_concepts_of_flexbox/index.html
@@ -1,8 +1,9 @@
 ---
 title: Using CSS flexible boxes
-slug: Web/CSS/CSS_Flexible_Box_Layout/Using_CSS_flexible_boxes
+slug: conflicting/Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
 translation_of: Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
 translation_of_original: Web/CSS/CSS_Flexible_Box_Layout/Using_CSS_flexible_boxes
+original_slug: Web/CSS/CSS_Flexible_Box_Layout/Using_CSS_flexible_boxes
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/-moz-cell/index.html b/files/de/conflicting/web/css/cursor/index.html
index 2fbbb81111..a57babd069 100644
--- a/files/de/web/css/-moz-cell/index.html
+++ b/files/de/conflicting/web/css/cursor/index.html
@@ -1,11 +1,12 @@
 ---
 title: '-moz-cell'
-slug: Web/CSS/-moz-cell
+slug: conflicting/Web/CSS/cursor
 tags:
   - CSS
   - Non-standard
 translation_of: Web/CSS/cursor
 translation_of_original: Web/CSS/-moz-cell
+original_slug: Web/CSS/-moz-cell
 ---
 <div>{{CSSRef}}{{obsolete_header}}</div>
 
diff --git a/files/de/web/css/alias/index.html b/files/de/conflicting/web/css/cursor_35a62ea3f10b688a3a87ccfe07779743/index.html
index abed12bcdf..df2a18e703 100644
--- a/files/de/web/css/alias/index.html
+++ b/files/de/conflicting/web/css/cursor_35a62ea3f10b688a3a87ccfe07779743/index.html
@@ -1,10 +1,11 @@
 ---
 title: alias
-slug: Web/CSS/Alias
+slug: conflicting/Web/CSS/cursor_35a62ea3f10b688a3a87ccfe07779743
 tags:
   - CSS
 translation_of: Web/CSS/cursor
 translation_of_original: Web/CSS/Alias
+original_slug: Web/CSS/Alias
 ---
 <p>Der <code>alias</code> {{cssxref("cursor")}} Wert wird verwendet, um einen Alias oder ein Kürzel zu etwas, das erstellt wird, zu kennzeichnen. Der Aliaszeiger wird als ein Pfeil mit einem kleinen kurvigen Pfeil daneben dargestellt.</p>
 
diff --git a/files/de/web/css/none/index.html b/files/de/conflicting/web/css/float/index.html
index 8c17b309fa..fb9978780d 100644
--- a/files/de/web/css/none/index.html
+++ b/files/de/conflicting/web/css/float/index.html
@@ -1,8 +1,9 @@
 ---
 title: none
-slug: Web/CSS/none
+slug: conflicting/Web/CSS/float
 translation_of: Web/CSS/float
 translation_of_original: Web/CSS/none
+original_slug: Web/CSS/none
 ---
 <div>
  {{ CSSRef() }}</div>
diff --git a/files/de/web/css/normal/index.html b/files/de/conflicting/web/css/font-variant/index.html
index 1bf3818e01..b9e03054c7 100644
--- a/files/de/web/css/normal/index.html
+++ b/files/de/conflicting/web/css/font-variant/index.html
@@ -1,8 +1,9 @@
 ---
 title: normal
-slug: Web/CSS/normal
+slug: conflicting/Web/CSS/font-variant
 translation_of: Web/CSS/font-variant
 translation_of_original: Web/CSS/normal
+original_slug: Web/CSS/normal
 ---
 <div>{{ CSSRef() }}</div>
 
diff --git a/files/de/web/css/auto/index.html b/files/de/conflicting/web/css/width/index.html
index 9279631046..9afa20932c 100644
--- a/files/de/web/css/auto/index.html
+++ b/files/de/conflicting/web/css/width/index.html
@@ -1,8 +1,9 @@
 ---
 title: auto
-slug: Web/CSS/auto
+slug: conflicting/Web/CSS/width
 translation_of: Web/CSS/width
 translation_of_original: Web/CSS/auto
+original_slug: Web/CSS/auto
 ---
 <div>
  {{CSSRef}}</div>
diff --git a/files/de/webentwicklung/index.html b/files/de/conflicting/web/guide/index.html
index 0223fdfb7f..758598592d 100644
--- a/files/de/webentwicklung/index.html
+++ b/files/de/conflicting/web/guide/index.html
@@ -1,10 +1,11 @@
 ---
 title: Webentwicklung
-slug: Webentwicklung
+slug: conflicting/Web/Guide
 tags:
   - Webentwicklung
 translation_of: Web/Guide
 translation_of_original: Web_Development
+original_slug: Webentwicklung
 ---
 <p><strong>Webentwicklung</strong> umfasst alle Aspekte der Entwicklung einer Webseite oder Webanwendung.</p>
 <p>Von einer einfachen Webseite bis zu komplexen, interaktiven Webanwendungen finden sich hier Artikel und Referenzen zu den unterschiedlichen Technologien der Webentwicklung.</p>
diff --git a/files/de/web/html/html5/html5_element_list/index.html b/files/de/conflicting/web/html/element/index.html
index 4b38e72119..8efe64c807 100644
--- a/files/de/web/html/html5/html5_element_list/index.html
+++ b/files/de/conflicting/web/html/element/index.html
@@ -1,8 +1,9 @@
 ---
 title: Liste der HTML5-Elemente
-slug: Web/HTML/HTML5/HTML5_element_list
+slug: conflicting/Web/HTML/Element
 translation_of: Web/HTML/Element
 translation_of_original: Web/Guide/HTML/HTML5/HTML5_element_list
+original_slug: Web/HTML/HTML5/HTML5_element_list
 ---
 <p>Auf dieser Seite finden Sie eine Liste aller <strong>Standard HTML5-Elemente</strong>, beschrieben durch ihr öffnendes Tag, nach Funktion gruppiert. Diese Liste enthält ausschließlich die gültigen HTML5-Elemente. In neuen Websites sollten nur die hier aufgezählten Tags verwendet werden. Eine komplette Liste aller HTML-Elemente finden Sie im <a href="/en-US/docs/HTML/Element" title="/en-US/docs/HTML/Element">Index aller HTML-Elemente</a>. Dieser enthält sämtliche möglichen Tags: standardisierte, nicht-standardkonforme, gültige, obsolete und als veraltet ("deprecated") betrachtete.</p>
 
diff --git a/files/de/web/javascript/reference/global_objects/arraybuffer/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/arraybuffer/index.html
index ee766c3529..991ad14c76 100644
--- a/files/de/web/javascript/reference/global_objects/arraybuffer/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/arraybuffer/index.html
@@ -1,12 +1,13 @@
 ---
 title: ArrayBuffer.prototype
-slug: Web/JavaScript/Reference/Global_Objects/ArrayBuffer/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/ArrayBuffer
 tags:
   - ArrayBuffer
   - JavaScript
   - Property
 translation_of: Web/JavaScript/Reference/Global_Objects/ArrayBuffer
 translation_of_original: Web/JavaScript/Reference/Global_Objects/ArrayBuffer/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/ArrayBuffer/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/boolean/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/boolean/index.html
index 62a430fac2..9d0c5ab3ac 100644
--- a/files/de/web/javascript/reference/global_objects/boolean/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/boolean/index.html
@@ -1,6 +1,6 @@
 ---
 title: Boolean.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Boolean/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Boolean
 tags:
   - Boolean
   - JavaScript
@@ -8,6 +8,7 @@ tags:
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Boolean
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Boolean/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Boolean/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/dataview/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/dataview/index.html
index e03aff8a8d..66c7adba5f 100644
--- a/files/de/web/javascript/reference/global_objects/dataview/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/dataview/index.html
@@ -1,12 +1,13 @@
 ---
 title: DataView.prototype
-slug: Web/JavaScript/Reference/Global_Objects/DataView/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/DataView
 tags:
   - DataView
   - JavaScript
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/DataView
 translation_of_original: Web/JavaScript/Reference/Global_Objects/DataView/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/DataView/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/date/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/date/index.html
index ab69ff1528..8170bac635 100644
--- a/files/de/web/javascript/reference/global_objects/date/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/date/index.html
@@ -1,6 +1,6 @@
 ---
 title: Date.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Date/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Date
 tags:
   - Date
   - JavaScript
@@ -9,6 +9,7 @@ tags:
   - Reference
 translation_of: Web/JavaScript/Reference/Global_Objects/Date
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Date/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Date/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/error/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/error/index.html
index 2a48748822..21605b0596 100644
--- a/files/de/web/javascript/reference/global_objects/error/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/error/index.html
@@ -1,12 +1,13 @@
 ---
 title: Error.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Error/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Error
 tags:
   - Error
   - JavaScript
   - Property
 translation_of: Web/JavaScript/Reference/Global_Objects/Error
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Error/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Error/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/evalerror/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/evalerror/index.html
index 7de0a353bc..33c7d7627c 100644
--- a/files/de/web/javascript/reference/global_objects/evalerror/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/evalerror/index.html
@@ -1,6 +1,6 @@
 ---
 title: EvalError.prototype
-slug: Web/JavaScript/Reference/Global_Objects/EvalError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/EvalError
 tags:
   - Error
   - EvalError
@@ -8,6 +8,7 @@ tags:
   - Property
 translation_of: Web/JavaScript/Reference/Global_Objects/EvalError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/EvalError/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/EvalError/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/function/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/function/index.html
index 44598455e8..fab649a648 100644
--- a/files/de/web/javascript/reference/global_objects/function/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/function/index.html
@@ -1,6 +1,6 @@
 ---
 title: Function.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Function/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Function
 tags:
   - Function
   - JavaScript
@@ -8,6 +8,7 @@ tags:
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Function
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Function/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Function/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/generatorfunction/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/generatorfunction/index.html
index e514a8c9d7..a488196f60 100644
--- a/files/de/web/javascript/reference/global_objects/generatorfunction/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/generatorfunction/index.html
@@ -1,6 +1,6 @@
 ---
 title: GeneratorFunction.prototype
-slug: Web/JavaScript/Reference/Global_Objects/GeneratorFunction/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/GeneratorFunction
 tags:
   - ECMAScript 2015
   - GeneratorFunction
@@ -11,6 +11,7 @@ tags:
   - Reference
 translation_of: Web/JavaScript/Reference/Global_Objects/GeneratorFunction
 translation_of_original: Web/JavaScript/Reference/Global_Objects/GeneratorFunction/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/GeneratorFunction/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/internalerror/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/internalerror/index.html
index 8ed0c2de4b..9cb53a54b0 100644
--- a/files/de/web/javascript/reference/global_objects/internalerror/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/internalerror/index.html
@@ -1,6 +1,6 @@
 ---
 title: InternalError.prototype
-slug: Web/JavaScript/Reference/Global_Objects/InternalError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/InternalError
 tags:
   - Error
   - InternalError
@@ -8,6 +8,7 @@ tags:
   - Property
 translation_of: Web/JavaScript/Reference/Global_Objects/InternalError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/InternalError/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/InternalError/prototype
 ---
 <div>{{JSRef}} {{non-standard_header}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/intl/collator/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/intl/collator/index.html
index 2b041c3f26..5cea169d48 100644
--- a/files/de/web/javascript/reference/global_objects/intl/collator/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/intl/collator/index.html
@@ -1,6 +1,6 @@
 ---
 title: Intl.Collator.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Intl/Collator/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Intl/Collator
 tags:
   - Collator
   - Internationalization
@@ -9,6 +9,7 @@ tags:
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Intl/Collator
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Intl/Collator/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Intl/Collator/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/intl/datetimeformat/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/intl/datetimeformat/index.html
index ab0a86d286..501e95b658 100644
--- a/files/de/web/javascript/reference/global_objects/intl/datetimeformat/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/intl/datetimeformat/index.html
@@ -1,6 +1,6 @@
 ---
 title: Intl.DateTimeFormat.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat
 tags:
   - DateTimeFormat
   - Internationalization
@@ -9,6 +9,7 @@ tags:
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/intl/numberformat/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/intl/numberformat/index.html
index 142aefbfcc..e4bfdeea20 100644
--- a/files/de/web/javascript/reference/global_objects/intl/numberformat/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/intl/numberformat/index.html
@@ -1,6 +1,6 @@
 ---
 title: Intl.NumberFormat.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat
 tags:
   - Internationalization
   - JavaScript
@@ -9,6 +9,7 @@ tags:
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/map/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/map/index.html
index 35399160b1..2d89c00f91 100644
--- a/files/de/web/javascript/reference/global_objects/map/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/map/index.html
@@ -1,12 +1,13 @@
 ---
 title: Map.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Map/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Map
 tags:
   - JavaScript
   - Map
   - Property
 translation_of: Web/JavaScript/Reference/Global_Objects/Map
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Map/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Map/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/number/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/number/index.html
index f44a20d90d..ee44ae5fbe 100644
--- a/files/de/web/javascript/reference/global_objects/number/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/number/index.html
@@ -1,6 +1,6 @@
 ---
 title: Number.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Number/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Number
 tags:
   - JavaScript
   - Number
@@ -8,6 +8,7 @@ tags:
   - Prototype
 translation_of: Web/JavaScript/Reference/Global_Objects/Number
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Number/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Number/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/object/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/object/index.html
index d6fdd3de2b..a765011f5e 100644
--- a/files/de/web/javascript/reference/global_objects/object/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/object/index.html
@@ -1,8 +1,9 @@
 ---
 title: Object.prototype
-slug: Web/JavaScript/Reference/Global_Objects/Object/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/Object
 translation_of: Web/JavaScript/Reference/Global_Objects/Object
 translation_of_original: Web/JavaScript/Reference/Global_Objects/Object/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Object/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/rangeerror/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/rangeerror/index.html
index fba99e1e5a..101f9bdb0d 100644
--- a/files/de/web/javascript/reference/global_objects/rangeerror/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/rangeerror/index.html
@@ -1,8 +1,9 @@
 ---
 title: RangeError.prototype
-slug: Web/JavaScript/Reference/Global_Objects/RangeError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/RangeError
 translation_of: Web/JavaScript/Reference/Global_Objects/RangeError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/RangeError/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/RangeError/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/string/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/string/index.html
index aad1a12ead..f59f666c32 100644
--- a/files/de/web/javascript/reference/global_objects/string/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/string/index.html
@@ -1,6 +1,6 @@
 ---
 title: String.prototype
-slug: Web/JavaScript/Reference/Global_Objects/String/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/String
 tags:
   - Eigentum
   - JavaScript
@@ -10,6 +10,7 @@ tags:
   - String
 translation_of: Web/JavaScript/Reference/Global_Objects/String
 translation_of_original: Web/JavaScript/Reference/Global_Objects/String/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/String/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/syntaxerror/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/syntaxerror/index.html
index eaa648d375..a8c283fba6 100644
--- a/files/de/web/javascript/reference/global_objects/syntaxerror/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/syntaxerror/index.html
@@ -1,6 +1,6 @@
 ---
 title: SyntaxError.prototype
-slug: Web/JavaScript/Reference/Global_Objects/SyntaxError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/SyntaxError
 tags:
   - Error
   - JavaScript
@@ -9,6 +9,7 @@ tags:
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Global_Objects/SyntaxError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/SyntaxError/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/SyntaxError/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/typeerror/prototype/index.html b/files/de/conflicting/web/javascript/reference/global_objects/typeerror/index.html
index 6c7e61d363..bff6dc355f 100644
--- a/files/de/web/javascript/reference/global_objects/typeerror/prototype/index.html
+++ b/files/de/conflicting/web/javascript/reference/global_objects/typeerror/index.html
@@ -1,6 +1,6 @@
 ---
 title: TypeError.prototype
-slug: Web/JavaScript/Reference/Global_Objects/TypeError/prototype
+slug: conflicting/Web/JavaScript/Reference/Global_Objects/TypeError
 tags:
   - Error
   - JavaScript
@@ -9,6 +9,7 @@ tags:
   - TypeError
 translation_of: Web/JavaScript/Reference/Global_Objects/TypeError
 translation_of_original: Web/JavaScript/Reference/Global_Objects/TypeError/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/TypeError/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/bitwise_operatoren/index.html b/files/de/conflicting/web/javascript/reference/operators/index.html
index 598d43df68..1d540b8f9e 100644
--- a/files/de/web/javascript/reference/operators/bitwise_operatoren/index.html
+++ b/files/de/conflicting/web/javascript/reference/operators/index.html
@@ -1,12 +1,13 @@
 ---
 title: Bitweise Operatoren
-slug: Web/JavaScript/Reference/Operators/Bitwise_Operatoren
+slug: conflicting/Web/JavaScript/Reference/Operators
 tags:
   - JavaScript
   - Operator
   - Reference
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Bitwise_Operators
+original_slug: Web/JavaScript/Reference/Operators/Bitwise_Operatoren
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/spread_operator/index.html b/files/de/conflicting/web/javascript/reference/operators/spread_syntax/index.html
index ee125663f4..41317b23e8 100644
--- a/files/de/web/javascript/reference/operators/spread_operator/index.html
+++ b/files/de/conflicting/web/javascript/reference/operators/spread_syntax/index.html
@@ -1,6 +1,6 @@
 ---
 title: Spread-Operator
-slug: Web/JavaScript/Reference/Operators/Spread_operator
+slug: conflicting/Web/JavaScript/Reference/Operators/Spread_syntax
 tags:
   - ECMAScript 2015
   - Iterator
@@ -8,6 +8,7 @@ tags:
   - Operator
 translation_of: Web/JavaScript/Reference/Operators/Spread_syntax
 translation_of_original: Web/JavaScript/Reference/Operators/Spread_operator
+original_slug: Web/JavaScript/Reference/Operators/Spread_operator
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/vergleichsoperatoren/index.html b/files/de/conflicting/web/javascript/reference/operators_5b3986b830cf68059c03079ef10ff039/index.html
index ceedd1eb07..01e5b9c0fb 100644
--- a/files/de/web/javascript/reference/operators/vergleichsoperatoren/index.html
+++ b/files/de/conflicting/web/javascript/reference/operators_5b3986b830cf68059c03079ef10ff039/index.html
@@ -1,12 +1,14 @@
 ---
 title: Vergleichsoperatoren
-slug: Web/JavaScript/Reference/Operators/Vergleichsoperatoren
+slug: >-
+  conflicting/Web/JavaScript/Reference/Operators_5b3986b830cf68059c03079ef10ff039
 tags:
   - JavaScript
   - Operator
   - Reference
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Comparison_Operators
+original_slug: Web/JavaScript/Reference/Operators/Vergleichsoperatoren
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/logische_operatoren/index.html b/files/de/conflicting/web/javascript/reference/operators_8b4515dbed18a24ecb01bfe0755ca163/index.html
index 6a20e85b79..78a7289ae7 100644
--- a/files/de/web/javascript/reference/operators/logische_operatoren/index.html
+++ b/files/de/conflicting/web/javascript/reference/operators_8b4515dbed18a24ecb01bfe0755ca163/index.html
@@ -1,6 +1,7 @@
 ---
 title: Logische Operatoren
-slug: Web/JavaScript/Reference/Operators/Logische_Operatoren
+slug: >-
+  conflicting/Web/JavaScript/Reference/Operators_8b4515dbed18a24ecb01bfe0755ca163
 tags:
   - JavaScript
   - Logic
@@ -12,6 +13,7 @@ tags:
   - or
 translation_of: Web/JavaScript/Reference/Operators
 translation_of_original: Web/JavaScript/Reference/Operators/Logical_Operators
+original_slug: Web/JavaScript/Reference/Operators/Logische_Operatoren
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/zuweisungsoperator/index.html b/files/de/conflicting/web/javascript/reference/operators_bf514126b51a6e9b7591809ecc554076/index.html
index 5df33bfe62..7bc7141aec 100644
--- a/files/de/web/javascript/reference/operators/zuweisungsoperator/index.html
+++ b/files/de/conflicting/web/javascript/reference/operators_bf514126b51a6e9b7591809ecc554076/index.html
@@ -1,11 +1,13 @@
 ---
 title: Zuweisungsoperator
-slug: Web/JavaScript/Reference/Operators/Zuweisungsoperator
+slug: >-
+  conflicting/Web/JavaScript/Reference/Operators_bf514126b51a6e9b7591809ecc554076
 tags:
   - JavaScript
   - Operator
 translation_of: Web/JavaScript/Reference/Operators#Assignment_operators
 translation_of_original: Web/JavaScript/Reference/Operators/Assignment_Operators
+original_slug: Web/JavaScript/Reference/Operators/Zuweisungsoperator
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/statements/default/index.html b/files/de/conflicting/web/javascript/reference/statements/switch/index.html
index f8845c9591..21d4dea5bc 100644
--- a/files/de/web/javascript/reference/statements/default/index.html
+++ b/files/de/conflicting/web/javascript/reference/statements/switch/index.html
@@ -1,11 +1,12 @@
 ---
 title: default
-slug: Web/JavaScript/Reference/Statements/default
+slug: conflicting/Web/JavaScript/Reference/Statements/switch
 tags:
   - JavaScript
   - Keyword
 translation_of: Web/JavaScript/Reference/Statements/switch
 translation_of_original: Web/JavaScript/Reference/Statements/default
+original_slug: Web/JavaScript/Reference/Statements/default
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/de/web_development/mobile/responsive_design/index.html b/files/de/conflicting/web/progressive_web_apps/index.html
index 655d513afb..776eb5b45f 100644
--- a/files/de/web_development/mobile/responsive_design/index.html
+++ b/files/de/conflicting/web/progressive_web_apps/index.html
@@ -1,8 +1,9 @@
 ---
 title: Responsive Design
-slug: Web_Development/Mobile/Responsive_design
+slug: conflicting/Web/Progressive_web_apps
 translation_of: Web/Progressive_web_apps
 translation_of_original: Web/Guide/Responsive_design
+original_slug: Web_Development/Mobile/Responsive_design
 ---
 <p><span class="long_text" id="result_box" lang="de"><span class="hps">Als Reaktion auf</span> <span class="hps">die Probleme mit dem</span> <span class="hps">getrennten </span><span class="hps">Ansatz zur Entwicklung von</span> <span class="hps">Web-Sites für</span> <span class="hps">mobile und</span> <span class="hps">Desktop</span><span>,</span> wird <span class="hps">eine relativ neue Idee</span> <span class="hps">(was ist eigentlich</span> <span class="hps">ziemlich alt</span><span>)</span> <span class="hps">immer beliebter</span><span>:</span> <span class="hps">Graben</span> <span class="hps">User-Agent</span><span>-Erkennung,</span> <span class="hps">und stattdessen</span> </span><span class="long_text" id="result_box" lang="de"><span class="hps">reagieren </span></span><span class="long_text" id="result_box" lang="de"><span class="hps">die Seiten</span>  <span class="hps">auf</span> <span class="hps">der Client-Seite</span> <span class="hps">in den Browser</span><span>-Funktionen.</span> <span class="hps">Dieser Ansatz, der</span> <span class="hps">von Ethan</span> <span class="hps">Marcotte</span> <span class="hps">in</span> <span class="hps">seinem Artikel</span> <span class="hps">für A</span> <span class="hps">List Apart</span> <span class="hps">kam, wird als</span> <span class="hps">Responsive</span> <span class="hps">Web Design</span> <span class="hps">bekannt sein.</span> <span class="hps">Wie der</span> <span class="hps">getrennten Plattform</span> <span class="hps">Ansatz</span> <span class="hps">hat</span> <span class="hps">ansprechende</span> <span class="hps">Webdesign</span> <span class="hps">positive und negative Aspekte</span><span>.</span></span></p>
 <h2 id="The_Advantages">The Advantages</h2>
diff --git a/files/de/web/web_components/custom_elements/index.html b/files/de/conflicting/web/web_components/using_custom_elements/index.html
index f6b3761646..1d6da3f2c3 100644
--- a/files/de/web/web_components/custom_elements/index.html
+++ b/files/de/conflicting/web/web_components/using_custom_elements/index.html
@@ -1,8 +1,9 @@
 ---
 title: Benutzerdefinierte Elemente
-slug: Web/Web_Components/Custom_Elements
+slug: conflicting/Web/Web_Components/Using_custom_elements
 translation_of: Web/Web_Components/Using_custom_elements
 translation_of_original: Web/Web_Components/Custom_Elements
+original_slug: Web/Web_Components/Custom_Elements
 ---
 <p>Benutzerdefinierte Elemente sind stellen die Möglichkeit bereit, benutzerdefinierte HTML-<a href="/en-US/docs/Glossary/Element">Elements</a> zu schaffen. Sie können eigenes durch JavaScript beschriebenes Verhalten und CSS-Styling haben. Sie sind Teil der <a href="/en-US/docs/Web/Web_Components">Web-Components</a>, können aber auch unabhängig von diesen benutzt werden.</p>
 
diff --git a/files/de/glossary/abstraktion/index.html b/files/de/glossary/abstraction/index.html
index 29f75adb98..ceb6adfed5 100644
--- a/files/de/glossary/abstraktion/index.html
+++ b/files/de/glossary/abstraction/index.html
@@ -1,12 +1,13 @@
 ---
 title: Abstraktion
-slug: Glossary/Abstraktion
+slug: Glossary/Abstraction
 tags:
   - Abstraktion
   - Glossar
   - Programmieren
   - Programmiersprache
 translation_of: Glossary/Abstraction
+original_slug: Glossary/Abstraktion
 ---
 <p>Die <strong>Abstraktion</strong> in der {{Glossary("Computerprogrammierung")}} ist eine der Methoden zur Reduzierung der Komplexität von Code und der erleichterten Implementierung effizienterer Designs und Benutzerschnittstellen bei komplizierter Software. Die Abstraktion versteckt die technische Komplexität eines Systems hinter leicht verständlichen {{Glossary("API", "APIs")}}.</p>
 
diff --git a/files/de/glossary/algorithmus/index.html b/files/de/glossary/algorithm/index.html
index 0c7109ae1e..9a8f4d44f7 100644
--- a/files/de/glossary/algorithmus/index.html
+++ b/files/de/glossary/algorithm/index.html
@@ -1,10 +1,11 @@
 ---
 title: Algorithmus
-slug: Glossary/Algorithmus
+slug: Glossary/Algorithm
 tags:
   - Algorithmus
   - Glossary
 translation_of: Glossary/Algorithm
+original_slug: Glossary/Algorithmus
 ---
 <p><span class="seoSummary">Ein Algorithmus ist eine eigenständige Abfolge von Anweisungen, die eine Funktion ausüben.</span></p>
 
diff --git a/files/de/glossary/asynchron/index.html b/files/de/glossary/asynchronous/index.html
index 57f052e94f..ccc6281ad9 100644
--- a/files/de/glossary/asynchron/index.html
+++ b/files/de/glossary/asynchronous/index.html
@@ -1,7 +1,8 @@
 ---
 title: Asynchron
-slug: Glossary/Asynchron
+slug: Glossary/Asynchronous
 translation_of: Glossary/Asynchronous
+original_slug: Glossary/Asynchron
 ---
 <p><span class="seoSummary">Der Ausdruck <strong>Asynchron</strong> bezieht sich auf das Konzept, dass mehrere Dinge zeitgleich passieren oder mehre, verbundene Dinge geschehen ohne aufeinander zu warten.</span> In der Informatik wird das Wort Asynchron meist in zwei Fällen unterschieden.</p>
 
diff --git a/files/de/glossary/bandbreite/index.html b/files/de/glossary/bandwidth/index.html
index b1c856463b..ce8c34138f 100644
--- a/files/de/glossary/bandbreite/index.html
+++ b/files/de/glossary/bandwidth/index.html
@@ -1,10 +1,11 @@
 ---
 title: Bandbreite
-slug: Glossary/Bandbreite
+slug: Glossary/Bandwidth
 tags:
   - Glossar
   - Infrastruktur
 translation_of: Glossary/Bandwidth
+original_slug: Glossary/Bandbreite
 ---
 <p>Die <strong>Bandbreite </strong> ist der Abstand zwischen Unterfrequenz und Oberfrequenz und gibt z.B. an welche Informationsmenge während einer bestimmten Zeit durch eine Datenverbindung durchgespielt werden kann. Ueblicherweise wird sie in mehrfachen <em>bit-per-seconds</em> (bps) gemessen, z.B. <em>megabits-per-second</em> (Mbps) oder <em>gigabits-per-second</em> (Gbps).</p>
 
diff --git a/files/de/glossary/klasse/index.html b/files/de/glossary/class/index.html
index 0148e61387..c6179ec792 100644
--- a/files/de/glossary/klasse/index.html
+++ b/files/de/glossary/class/index.html
@@ -1,10 +1,11 @@
 ---
 title: Klasse
-slug: Glossary/Klasse
+slug: Glossary/Class
 tags:
   - CodingScripting
   - Glossary
 translation_of: Glossary/Class
+original_slug: Glossary/Klasse
 ---
 <p>In der {{glossary("OOP","objektorientierten Programmierung")}} definiert eine <em>Klasse</em> die Charakteristiken eines {{glossary("object","Objekts")}}. Eine Klasse ist eine Entwurfsdefinition der {{glossary("property","Eigenschaften")}} und {{glossary("method","Methoden")}} eines Objekts, der "Plan", von dem andere spezifischere Instanzen des Objekts abgeleitet werden.</p>
 
diff --git a/files/de/glossary/konstruktor/index.html b/files/de/glossary/constructor/index.html
index 7c719b55ea..0d3fdb5482 100644
--- a/files/de/glossary/konstruktor/index.html
+++ b/files/de/glossary/constructor/index.html
@@ -1,7 +1,8 @@
 ---
 title: Konstruktor
-slug: Glossary/Konstruktor
+slug: Glossary/Constructor
 translation_of: Glossary/Constructor
+original_slug: Glossary/Konstruktor
 ---
 <p>Ein <strong>Konstruktor</strong> gehört zu einer Instanz eines bestimmten Klassen-{{glossary("object","Objekts")}}.</p>
 
diff --git a/files/de/glossary/cors-zugelassener-anfrage-header/index.html b/files/de/glossary/cors-safelisted_request_header/index.html
index 97db753e07..b67f7237ed 100644
--- a/files/de/glossary/cors-zugelassener-anfrage-header/index.html
+++ b/files/de/glossary/cors-safelisted_request_header/index.html
@@ -1,9 +1,10 @@
 ---
 title: CORS-zugelassene Anfrage-Header
-slug: Glossary/CORS-zugelassener-anfrage-header
+slug: Glossary/CORS-safelisted_request_header
 tags:
   - CORS
 translation_of: Glossary/CORS-safelisted_request_header
+original_slug: Glossary/CORS-zugelassener-anfrage-header
 ---
 <p>Ein <a href="https://fetch.spec.whatwg.org/#cors-safelisted-request-header">CORS-zugelassener Anfrage-Header</a> ist einer der folgenden <a href="/en-US/docs/Web/HTTP/Headers">HTTP Header</a>:</p>
 
diff --git a/files/de/glossary/css_praeprozessor/index.html b/files/de/glossary/css_preprocessor/index.html
index 43cd580206..94064f4571 100644
--- a/files/de/glossary/css_praeprozessor/index.html
+++ b/files/de/glossary/css_preprocessor/index.html
@@ -1,9 +1,10 @@
 ---
 title: CSS-Präprozessor
-slug: Glossary/CSS_Praeprozessor
+slug: Glossary/CSS_preprocessor
 tags:
   - CSS
 translation_of: Glossary/CSS_preprocessor
+original_slug: Glossary/CSS_Praeprozessor
 ---
 <p><span class="seoSummary">Ein <strong>CSS-Präprozessor</strong> ist ein Programm zur Generierung von {{Glossary("CSS")}} aus der des Präprozessors eigenen {{Glossary("Syntax")}}.</span> Es gibt eine Vielzahl von CSS Präprozessoren aus denen man wählen kann. Die meisten davon stellen Funktionen zur Verfügung, die in reinem CSS nicht verfügbar sind, wie beispielsweise Mixins, Nesting Selectors, Inheritance Selectors und andere. Diese Funktionen verhelfen der Struktur des CSS zu mehr Lesbarkeit und besserer Pflegbarkeit.</p>
 
diff --git a/files/de/glossary/leeres_element/index.html b/files/de/glossary/empty_element/index.html
index fd95ef05a6..c050756a2e 100644
--- a/files/de/glossary/leeres_element/index.html
+++ b/files/de/glossary/empty_element/index.html
@@ -1,11 +1,12 @@
 ---
 title: Leeres Element
-slug: Glossary/Leeres_Element
+slug: Glossary/Empty_element
 tags:
   - CodingScripting
   - Fortgeschritten
   - Glossar
 translation_of: Glossary/Empty_element
+original_slug: Glossary/Leeres_Element
 ---
 <p>Ein <strong>Leeres Element</strong> ist ein {{Glossary("Element")}} aus HTML, SVG oder MathML, welches <strong>keine untergeordneten Elemente</strong> besitzen kann.</p>
 
diff --git a/files/de/glossary/datenkapselung/index.html b/files/de/glossary/encapsulation/index.html
index 98e06ad291..25b97e2141 100644
--- a/files/de/glossary/datenkapselung/index.html
+++ b/files/de/glossary/encapsulation/index.html
@@ -1,9 +1,10 @@
 ---
 title: Datenkapselung
-slug: Glossary/Datenkapselung
+slug: Glossary/Encapsulation
 tags:
   - Datenkapselung
 translation_of: Glossary/Encapsulation
+original_slug: Glossary/Datenkapselung
 ---
 <p>Datenkapselung bezeichnet den Vorgang des Verbergens von Daten und {{glossary("function","functions")}} (Funktionen) in eine Komponente, wobei der Zugriff darauf beschränkt wird, es wird eine Art "Blackbox" für das {{glossary("object")}}  (Objekt) erstellt. Auf diese Weise braucht der Anwender solch einer Klasse nur das Interface zu kennen, also die Daten und Funktionen die nach außen hin sichtbar sind, und nicht die verborgene Implementierung.</p>
 
diff --git a/files/de/glossary/funktion_erster-klasse/index.html b/files/de/glossary/first-class_function/index.html
index 05ac712188..ebb66baaec 100644
--- a/files/de/glossary/funktion_erster-klasse/index.html
+++ b/files/de/glossary/first-class_function/index.html
@@ -1,7 +1,8 @@
 ---
 title: Funktion erster Klasse
-slug: Glossary/Funktion_erster-Klasse
+slug: Glossary/First-class_Function
 translation_of: Glossary/First-class_Function
+original_slug: Glossary/Funktion_erster-Klasse
 ---
 <p>Funktionen, die wie jede andere Variable behandelt werden, bezeichnet man als <strong>Funktionen erster Klasse</strong>.</p>
 
diff --git a/files/de/glossary/verbotener_header_name/index.html b/files/de/glossary/forbidden_header_name/index.html
index 23bbba81ca..041e2b9220 100644
--- a/files/de/glossary/verbotener_header_name/index.html
+++ b/files/de/glossary/forbidden_header_name/index.html
@@ -1,6 +1,6 @@
 ---
 title: Verbotener Header-Name
-slug: Glossary/verbotener_header_name
+slug: Glossary/Forbidden_header_name
 tags:
   - Fetch
   - Glossar
@@ -10,6 +10,7 @@ tags:
   - Verboten
   - Wörterverzeichnis
 translation_of: Glossary/Forbidden_header_name
+original_slug: Glossary/verbotener_header_name
 ---
 <p>Ein verbotener Header-Name, ist ein <a href="/en-US/docs/Web/HTTP/Headers">HTTP header</a> Name, welcher nicht programmatisch modifiziert werden kann;  that cannot be modified programmatically; speziell, ein HTTP <strong>Anfragen</strong>-Header Name.</p>
 
diff --git a/files/de/glossary/informationsarchitektur/index.html b/files/de/glossary/information_architecture/index.html
index 33e6cbc130..c85551f66d 100644
--- a/files/de/glossary/informationsarchitektur/index.html
+++ b/files/de/glossary/information_architecture/index.html
@@ -1,11 +1,12 @@
 ---
 title: Informationsarchitektur
-slug: Glossary/Informationsarchitektur
+slug: Glossary/Information_architecture
 tags:
   - Design
   - Glossary
   - User experience
 translation_of: Glossary/Information_architecture
+original_slug: Glossary/Informationsarchitektur
 ---
 <p><span class="seoSummary"><strong>Informationsarchitektur (IA)</strong> bezeichnet die Organisation, Strukturierung und Gestaltung von Inhalten innerhalb einer Website sowie auf einzelnen Webseiten.</span> Eine gute Informationsarchitektur ermöglicht den Nutzer*innen, die gesuchten Informationen einfach und schnell zu finden und zu nutzen; sie ist somit mitverantwortlich für das {{Glossary("UX", "Nutzungserlebnis (User Experience)")}} einer Website.</p>
 
diff --git a/files/de/lokalisierung/index.html b/files/de/glossary/localization/index.html
index 91b5063380..75cae277a2 100644
--- a/files/de/lokalisierung/index.html
+++ b/files/de/glossary/localization/index.html
@@ -1,9 +1,10 @@
 ---
 title: Lokalisierung
-slug: Lokalisierung
+slug: Glossary/Localization
 tags:
   - Lokalisierung
 translation_of: Glossary/Localization
+original_slug: Lokalisierung
 ---
 <p><strong>Lokalisierung</strong> (L10n) ist der Vorgang zur <span class="external">Übersetzung</span> von Programmbenutzeroberflächen in eine andere Sprache und deren Anpassung an weitere Eigenheiten anderer Kulturen. Auf den folgenden Seiten geht es darum Mozilla-basierte Anwendungen oder Erweiterungen zu lokalisieren. Hier wird auch von <a class="link-https" href="https://www.24translate.de/fachübersetzung/website-übersetzen.html" title="https://www.24translate.de/fachübersetzung/website-übersetzen.html">Software- bzw. Website-Lokalisierungen</a> gesprochen.</p>
 <table class="topicpage-table">
diff --git a/files/de/glossary/objekt/index.html b/files/de/glossary/object/index.html
index 19b2f9f3d9..1acdd7c790 100644
--- a/files/de/glossary/objekt/index.html
+++ b/files/de/glossary/object/index.html
@@ -1,11 +1,12 @@
 ---
 title: Objekt
-slug: Glossary/Objekt
+slug: Glossary/Object
 tags:
   - Einführung
   - Objekt
   - Objektorientierte Programmierung
 translation_of: Glossary/Object
+original_slug: Glossary/Objekt
 ---
 <p>Ein Objekt bezieht sich auf eine Datenstruktur welche Daten und Anweisungen beinhaltet. Objekte stellen manchmal Gegenstände aus der echten Welt dar, wie zum Beispiel ein Auto oder eine Karte in einem Rennspiel. {{glossary("JavaScript")}}, Java, C++, Python und Ruby sind Beispiele für  {{glossary("OOP","Objektorientierte Programmiersprachen")}}.</p>
 
diff --git a/files/de/glossary/einfache_datenelemente/index.html b/files/de/glossary/primitive/index.html
index 021ca95488..a77c9e8fff 100644
--- a/files/de/glossary/einfache_datenelemente/index.html
+++ b/files/de/glossary/primitive/index.html
@@ -1,12 +1,13 @@
 ---
 title: Skalare Daten
-slug: Glossary/einfache_datenelemente
+slug: Glossary/Primitive
 tags:
   - Glossary
   - einfache Datentypen
   - primitive Datentypen
   - skalare Datentypen
 translation_of: Glossary/Primitive
+original_slug: Glossary/einfache_datenelemente
 ---
 <p><span class="seoSummary">Ein <strong>primitives</strong> (skalares) Datenelement (einfacher Wert, einfacher Datentyp) ist ein Datenelement, das kein {{Glossary("object","Objekt")}} ist und keine {{glossary("method","Methoden")}} besitzt.</span></p>
 
diff --git a/files/de/glossary/protokoll/index.html b/files/de/glossary/protocol/index.html
index eb631a6a81..ce222f27a3 100644
--- a/files/de/glossary/protokoll/index.html
+++ b/files/de/glossary/protocol/index.html
@@ -1,11 +1,12 @@
 ---
 title: Protokoll
-slug: Glossary/Protokoll
+slug: Glossary/Protocol
 tags:
   - Glossary
   - Infrastructure
   - Protocols
 translation_of: Glossary/Protocol
+original_slug: Glossary/Protokoll
 ---
 <p id="Summary">Ein <strong>Protokoll</strong> ist ein System aus Regeln, die festlegen wie Daten in oder zwischen Computern ausgetauscht werden. Die Kommunikation zwischen Geräten erfordert, dass die Geräte im Format der ausgetauschten Daten übereinstimmen. Der Satz an Regeln, aus dem ein Format besteht, wird Protokoll genannt.</p>
 
diff --git a/files/de/glossary/anweisung/index.html b/files/de/glossary/statement/index.html
index 4913ac8f29..27eab6bf91 100644
--- a/files/de/glossary/anweisung/index.html
+++ b/files/de/glossary/statement/index.html
@@ -1,6 +1,6 @@
 ---
 title: Anweisung
-slug: Glossary/Anweisung
+slug: Glossary/Statement
 tags:
   - Anweisung
   - Glossar
@@ -8,6 +8,7 @@ tags:
   - JavaScript
   - befehl
 translation_of: Glossary/Statement
+original_slug: Glossary/Anweisung
 ---
 <p>In einer Programmiersprache ist eine Anweisung eine Vorschrift innerhalb des Codes, die zur Laufzeit des Programmes einem Befehl entspricht. Jedes Programm ist zusammengesetzt aus einer Folge von Anweisungen. </p>
 
diff --git a/files/de/glossary/typ/index.html b/files/de/glossary/type/index.html
index 890c06d118..09a772b7d4 100644
--- a/files/de/glossary/typ/index.html
+++ b/files/de/glossary/type/index.html
@@ -1,11 +1,12 @@
 ---
 title: Typ
-slug: Glossary/Typ
+slug: Glossary/Type
 tags:
   - CodingScripting
   - Glossary
   - JavaScript
 translation_of: Glossary/Type
+original_slug: Glossary/Typ
 ---
 <p><strong>Typen</strong> sind Charakteristiken von {{Glossary("Value", "Werten")}}, die festlegen, welche Art von Daten oder Strukturen ein Wert bzw. eine Variable speichern kann.</p>
 
diff --git a/files/de/glossary/herstellerpräfix/index.html b/files/de/glossary/vendor_prefix/index.html
index a97254fc6e..abf99f967d 100644
--- a/files/de/glossary/herstellerpräfix/index.html
+++ b/files/de/glossary/vendor_prefix/index.html
@@ -1,6 +1,6 @@
 ---
 title: Herstellerpräfix
-slug: Glossary/Herstellerpräfix
+slug: Glossary/Vendor_Prefix
 tags:
   - '-moz-'
   - '-ms-'
@@ -14,6 +14,7 @@ tags:
   - Präfix
   - scripten
 translation_of: Glossary/Vendor_Prefix
+original_slug: Glossary/Herstellerpräfix
 ---
 <p>Browserhersteller fügen manchmal Präfixe zu experimentellen oder nichtstandardisierten CSS-Eigenschaften hinzu, damit Entwickler mit neuen Ideen experimentieren können, während - in der Theorie - verhindert werden soll, dass sie sich auf diese Experimente verlassen und ihr Code dann während des Standardisierungsprozesses bricht. Entwickler sollten mit der Verwendung der Eigenschaft ohne Präfix warten, bis das Browserverhalten standardisiert ist.</p>
 
diff --git a/files/de/learn/common_questions/wie_das_internet_funktioniert/index.html b/files/de/learn/common_questions/how_does_the_internet_work/index.html
index f780dac8a7..e53bb596f3 100644
--- a/files/de/learn/common_questions/wie_das_internet_funktioniert/index.html
+++ b/files/de/learn/common_questions/how_does_the_internet_work/index.html
@@ -1,7 +1,8 @@
 ---
 title: Wie das Internet funktioniert
-slug: Learn/Common_questions/Wie_das_Internet_funktioniert
+slug: Learn/Common_questions/How_does_the_Internet_work
 translation_of: Learn/Common_questions/How_does_the_Internet_work
+original_slug: Learn/Common_questions/Wie_das_Internet_funktioniert
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/web/guide/css/getting_started/kaskadierung_und_vererbung/index.html b/files/de/learn/css/building_blocks/cascade_and_inheritance/index.html
index 79ce577e7f..66491c7d4b 100644
--- a/files/de/web/guide/css/getting_started/kaskadierung_und_vererbung/index.html
+++ b/files/de/learn/css/building_blocks/cascade_and_inheritance/index.html
@@ -1,8 +1,9 @@
 ---
 title: Kaskadierung und Vererbung
-slug: Web/Guide/CSS/Getting_started/Kaskadierung_und_vererbung
+slug: Learn/CSS/Building_blocks/Cascade_and_inheritance
 translation_of: Learn/CSS/Building_blocks/Cascade_and_inheritance
 translation_of_original: Web/Guide/CSS/Getting_started/Cascading_and_inheritance
+original_slug: Web/Guide/CSS/Getting_started/Kaskadierung_und_vererbung
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/de/web/guide/css/getting_started/selektoren/index.html b/files/de/learn/css/building_blocks/selectors/index.html
index f61b8bb577..e99787c956 100644
--- a/files/de/web/guide/css/getting_started/selektoren/index.html
+++ b/files/de/learn/css/building_blocks/selectors/index.html
@@ -1,8 +1,9 @@
 ---
 title: Selektoren
-slug: Web/Guide/CSS/Getting_started/Selektoren
+slug: Learn/CSS/Building_blocks/Selectors
 translation_of: Learn/CSS/Building_blocks/Selectors
 translation_of_original: Web/Guide/CSS/Getting_started/Selectors
+original_slug: Web/Guide/CSS/Getting_started/Selektoren
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/de/learn/css/building_blocks/werten_einheiten/index.html b/files/de/learn/css/building_blocks/values_and_units/index.html
index 8c45b5ba69..7cf48f86f7 100644
--- a/files/de/learn/css/building_blocks/werten_einheiten/index.html
+++ b/files/de/learn/css/building_blocks/values_and_units/index.html
@@ -1,6 +1,6 @@
 ---
 title: Werte und Einheiten in CSS
-slug: Learn/CSS/Building_blocks/Werten_Einheiten
+slug: Learn/CSS/Building_blocks/Values_and_units
 tags:
   - CSS
   - Einheiten
@@ -8,6 +8,7 @@ tags:
   - Lernen
   - Werte
 translation_of: Learn/CSS/Building_blocks/Values_and_units
+original_slug: Learn/CSS/Building_blocks/Werten_Einheiten
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/CSS/Building_blocks/Overflowing_content", "Learn/CSS/Building_blocks/Sizing_items_in_CSS", "Learn/CSS/Building_blocks")}}</div>
 
diff --git a/files/de/web/guide/css/getting_started/lesbares_css/index.html b/files/de/learn/css/first_steps/how_css_is_structured/index.html
index 4c16c3e18d..ceaab03cc0 100644
--- a/files/de/web/guide/css/getting_started/lesbares_css/index.html
+++ b/files/de/learn/css/first_steps/how_css_is_structured/index.html
@@ -1,8 +1,9 @@
 ---
 title: Lesbares CSS
-slug: Web/Guide/CSS/Getting_started/Lesbares_CSS
+slug: Learn/CSS/First_steps/How_CSS_is_structured
 translation_of: Learn/CSS/Introduction_to_CSS/Syntax#Beyond_syntax_make_CSS_readable
 translation_of_original: Web/Guide/CSS/Getting_started/Readable_CSS
+original_slug: Web/Guide/CSS/Getting_started/Lesbares_CSS
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/de/web/guide/css/getting_started/was_ist_css/index.html b/files/de/learn/css/first_steps/how_css_works/index.html
index 0641d048e4..a5a0fab8de 100644
--- a/files/de/web/guide/css/getting_started/was_ist_css/index.html
+++ b/files/de/learn/css/first_steps/how_css_works/index.html
@@ -1,8 +1,9 @@
 ---
 title: Was ist CSS
-slug: Web/Guide/CSS/Getting_started/Was_ist_CSS
+slug: Learn/CSS/First_steps/How_CSS_works
 translation_of: Learn/CSS/First_steps/How_CSS_works
 translation_of_original: Web/Guide/CSS/Getting_started/What_is_CSS
+original_slug: Web/Guide/CSS/Getting_started/Was_ist_CSS
 ---
 <div>{{CSSTutorialTOC}}</div>
 
diff --git a/files/de/web/guide/css/getting_started/textstyles/index.html b/files/de/learn/css/styling_text/fundamentals/index.html
index 7a3a40f6e0..f3514793ac 100644
--- a/files/de/web/guide/css/getting_started/textstyles/index.html
+++ b/files/de/learn/css/styling_text/fundamentals/index.html
@@ -1,8 +1,9 @@
 ---
 title: Textstyles
-slug: Web/Guide/CSS/Getting_started/Textstyles
+slug: Learn/CSS/Styling_text/Fundamentals
 translation_of: Learn/CSS/Styling_text/Fundamentals
 translation_of_original: Web/Guide/CSS/Getting_started/Text_styles
+original_slug: Web/Guide/CSS/Getting_started/Textstyles
 ---
 <p>{{ CSSTutorialTOC() }}</p>
 
diff --git a/files/de/learn/html/forms/index.html b/files/de/learn/forms/index.html
index b0d1e8eb58..343876346b 100644
--- a/files/de/learn/html/forms/index.html
+++ b/files/de/learn/forms/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTML forms
-slug: Learn/HTML/Forms
+slug: Learn/Forms
 tags:
   - Anleitung
   - Beginner
@@ -9,6 +9,7 @@ tags:
   - Lernen
   - Web
 translation_of: Learn/Forms
+original_slug: Learn/HTML/Forms
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/getting_started_with_the_web/dateien_nutzen/index.html b/files/de/learn/getting_started_with_the_web/dealing_with_files/index.html
index 2eaa20a9ea..1b6f1c127a 100644
--- a/files/de/learn/getting_started_with_the_web/dateien_nutzen/index.html
+++ b/files/de/learn/getting_started_with_the_web/dealing_with_files/index.html
@@ -1,6 +1,6 @@
 ---
 title: Dateien nutzen
-slug: Learn/Getting_started_with_the_web/dateien_nutzen
+slug: Learn/Getting_started_with_the_web/Dealing_with_files
 tags:
   - Anfänger
   - Datei
@@ -9,6 +9,7 @@ tags:
   - Pfad
   - Webseite
 translation_of: Learn/Getting_started_with_the_web/Dealing_with_files
+original_slug: Learn/Getting_started_with_the_web/dateien_nutzen
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/getting_started_with_the_web/wie_das_internet_funktioniert/index.html b/files/de/learn/getting_started_with_the_web/how_the_web_works/index.html
index 7b5dfbc541..e368a1ca37 100644
--- a/files/de/learn/getting_started_with_the_web/wie_das_internet_funktioniert/index.html
+++ b/files/de/learn/getting_started_with_the_web/how_the_web_works/index.html
@@ -1,6 +1,6 @@
 ---
 title: Wie das Internet funktioniert
-slug: Learn/Getting_started_with_the_web/Wie_das_Internet_funktioniert
+slug: Learn/Getting_started_with_the_web/How_the_Web_works
 tags:
   - Anfänger
   - Client
@@ -14,6 +14,7 @@ tags:
   - TCP
   - Web
 translation_of: Learn/Getting_started_with_the_web/How_the_Web_works
+original_slug: Learn/Getting_started_with_the_web/Wie_das_Internet_funktioniert
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/getting_started_with_the_web/javascript_basis/index.html b/files/de/learn/getting_started_with_the_web/javascript_basics/index.html
index 65a31710d3..2f49aa255d 100644
--- a/files/de/learn/getting_started_with_the_web/javascript_basis/index.html
+++ b/files/de/learn/getting_started_with_the_web/javascript_basics/index.html
@@ -1,6 +1,6 @@
 ---
 title: JavaScript-Grundlagen
-slug: Learn/Getting_started_with_the_web/JavaScript_basis
+slug: Learn/Getting_started_with_the_web/JavaScript_basics
 tags:
   - Anfänger
   - JavaScript
@@ -8,6 +8,7 @@ tags:
   - Web
   - Webdesign
 translation_of: Learn/Getting_started_with_the_web/JavaScript_basics
+original_slug: Learn/Getting_started_with_the_web/JavaScript_basis
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/fortgeschrittene_textformatierung/index.html b/files/de/learn/html/introduction_to_html/advanced_text_formatting/index.html
index 1075d63f66..d8c21be264 100644
--- a/files/de/learn/html/einführung_in_html/fortgeschrittene_textformatierung/index.html
+++ b/files/de/learn/html/introduction_to_html/advanced_text_formatting/index.html
@@ -1,6 +1,6 @@
 ---
 title: Fortgeschrittene Textformatierung
-slug: Learn/HTML/Einführung_in_HTML/Fortgeschrittene_Textformatierung
+slug: Learn/HTML/Introduction_to_HTML/Advanced_text_formatting
 tags:
   - Abkürzungen
   - Beginner
@@ -11,6 +11,7 @@ tags:
   - Textformatierung
   - Zitate
 translation_of: Learn/HTML/Introduction_to_HTML/Advanced_text_formatting
+original_slug: Learn/HTML/Einführung_in_HTML/Fortgeschrittene_Textformatierung
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/erstellen_von_hyperlinks/index.html b/files/de/learn/html/introduction_to_html/creating_hyperlinks/index.html
index d27bf253a4..6f67a374bb 100644
--- a/files/de/learn/html/einführung_in_html/erstellen_von_hyperlinks/index.html
+++ b/files/de/learn/html/introduction_to_html/creating_hyperlinks/index.html
@@ -1,6 +1,6 @@
 ---
 title: Erstellen von Hyperlinks
-slug: Learn/HTML/Einführung_in_HTML/Erstellen_von_Hyperlinks
+slug: Learn/HTML/Introduction_to_HTML/Creating_hyperlinks
 tags:
   - Beginner
   - Guide
@@ -13,6 +13,7 @@ tags:
   - relativ
   - urls
 translation_of: Learn/HTML/Introduction_to_HTML/Creating_hyperlinks
+original_slug: Learn/HTML/Einführung_in_HTML/Erstellen_von_Hyperlinks
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/fehlersuche_in_html/index.html b/files/de/learn/html/introduction_to_html/debugging_html/index.html
index 3e3223016e..d430537d4e 100644
--- a/files/de/learn/html/einführung_in_html/fehlersuche_in_html/index.html
+++ b/files/de/learn/html/introduction_to_html/debugging_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Fehlersuche in HTML
-slug: Learn/HTML/Einführung_in_HTML/Fehlersuche_in_HTML
+slug: Learn/HTML/Introduction_to_HTML/Debugging_HTML
 tags:
   - Anfänger
   - Beginner
@@ -10,6 +10,7 @@ tags:
   - Validation
   - validator
 translation_of: Learn/HTML/Introduction_to_HTML/Debugging_HTML
+original_slug: Learn/HTML/Einführung_in_HTML/Fehlersuche_in_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/document_and_website_structure/index.html b/files/de/learn/html/introduction_to_html/document_and_website_structure/index.html
index 7b9ce1bae8..f2e53c49d3 100644
--- a/files/de/learn/html/einführung_in_html/document_and_website_structure/index.html
+++ b/files/de/learn/html/introduction_to_html/document_and_website_structure/index.html
@@ -1,6 +1,6 @@
 ---
 title: Struktur in die Webseite bringen
-slug: Learn/HTML/Einführung_in_HTML/Document_and_website_structure
+slug: Learn/HTML/Introduction_to_HTML/Document_and_website_structure
 tags:
   - Beginner
   - Guide
@@ -10,6 +10,7 @@ tags:
   - Sitemap
   - Struktur
 translation_of: Learn/HTML/Introduction_to_HTML/Document_and_website_structure
+original_slug: Learn/HTML/Einführung_in_HTML/Document_and_website_structure
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/lerne_html_kennen/index.html b/files/de/learn/html/introduction_to_html/getting_started/index.html
index 0f5354d5d2..1ee9d1214e 100644
--- a/files/de/learn/html/einführung_in_html/lerne_html_kennen/index.html
+++ b/files/de/learn/html/introduction_to_html/getting_started/index.html
@@ -1,6 +1,6 @@
 ---
 title: Lerne HTML kennen
-slug: Learn/HTML/Einführung_in_HTML/Lerne_HTML_kennen
+slug: Learn/HTML/Introduction_to_HTML/Getting_started
 tags:
   - Anfänger
   - Attribut
@@ -14,6 +14,7 @@ tags:
   - Modul
   - whitespace
 translation_of: Learn/HTML/Introduction_to_HTML/Getting_started
+original_slug: Learn/HTML/Einführung_in_HTML/Lerne_HTML_kennen
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/einfache_textformatierung_in_html/index.html b/files/de/learn/html/introduction_to_html/html_text_fundamentals/index.html
index dad40a05a9..7bc567dc92 100644
--- a/files/de/learn/html/einführung_in_html/einfache_textformatierung_in_html/index.html
+++ b/files/de/learn/html/introduction_to_html/html_text_fundamentals/index.html
@@ -1,6 +1,6 @@
 ---
 title: Einfache Textformatierung in HTML
-slug: Learn/HTML/Einführung_in_HTML/Einfache_Textformatierung_in_HTML
+slug: Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals
 tags:
   - Beginner
   - Einführung in HTML
@@ -12,6 +12,7 @@ tags:
   - Text formatieren
   - Überschriften
 translation_of: Learn/HTML/Introduction_to_HTML/HTML_text_fundamentals
+original_slug: Learn/HTML/Einführung_in_HTML/Einfache_Textformatierung_in_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/index.html b/files/de/learn/html/introduction_to_html/index.html
index 73f46a2614..625b9e01f7 100644
--- a/files/de/learn/html/einführung_in_html/index.html
+++ b/files/de/learn/html/introduction_to_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Einführung in HTML
-slug: Learn/HTML/Einführung_in_HTML
+slug: Learn/HTML/Introduction_to_HTML
 tags:
   - Einführung in HTML
   - HTML
@@ -12,6 +12,7 @@ tags:
   - Textformatierung
   - head
 translation_of: Learn/HTML/Introduction_to_HTML
+original_slug: Learn/HTML/Einführung_in_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/marking_up_a_letter/index.html b/files/de/learn/html/introduction_to_html/marking_up_a_letter/index.html
index e2d3e9d636..ab291c955b 100644
--- a/files/de/learn/html/einführung_in_html/marking_up_a_letter/index.html
+++ b/files/de/learn/html/introduction_to_html/marking_up_a_letter/index.html
@@ -1,6 +1,6 @@
 ---
 title: Marking up a letter
-slug: Learn/HTML/Einführung_in_HTML/Marking_up_a_letter
+slug: Learn/HTML/Introduction_to_HTML/Marking_up_a_letter
 tags:
   - Anfänger
   - Brief
@@ -9,6 +9,7 @@ tags:
   - Text
   - head
 translation_of: Learn/HTML/Introduction_to_HTML/Marking_up_a_letter
+original_slug: Learn/HTML/Einführung_in_HTML/Marking_up_a_letter
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/structuring_a_page_of_content/index.html b/files/de/learn/html/introduction_to_html/structuring_a_page_of_content/index.html
index fc439ad60b..6f3e12ddb2 100644
--- a/files/de/learn/html/einführung_in_html/structuring_a_page_of_content/index.html
+++ b/files/de/learn/html/introduction_to_html/structuring_a_page_of_content/index.html
@@ -1,7 +1,8 @@
 ---
 title: Structuring a page of content
-slug: Learn/HTML/Einführung_in_HTML/Structuring_a_page_of_content
+slug: Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content
 translation_of: Learn/HTML/Introduction_to_HTML/Structuring_a_page_of_content
+original_slug: Learn/HTML/Einführung_in_HTML/Structuring_a_page_of_content
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/einführung_in_html/der_kopf_metadaten_in_html/index.html b/files/de/learn/html/introduction_to_html/the_head_metadata_in_html/index.html
index f775774535..a4d67ac514 100644
--- a/files/de/learn/html/einführung_in_html/der_kopf_metadaten_in_html/index.html
+++ b/files/de/learn/html/introduction_to_html/the_head_metadata_in_html/index.html
@@ -1,6 +1,6 @@
 ---
 title: Was gehört in den Kopf der HTML-Datei?
-slug: Learn/HTML/Einführung_in_HTML/Der_Kopf_Metadaten_in_HTML
+slug: Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML
 tags:
   - Anfänger
   - Beginner
@@ -14,6 +14,7 @@ tags:
   - head
   - lang
 translation_of: Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML
+original_slug: Learn/HTML/Einführung_in_HTML/Der_Kopf_Metadaten_in_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/html/tables/grund_tabelle_html/index.html b/files/de/learn/html/tables/basics/index.html
index a10e286570..b162ed291d 100644
--- a/files/de/learn/html/tables/grund_tabelle_html/index.html
+++ b/files/de/learn/html/tables/basics/index.html
@@ -1,7 +1,8 @@
 ---
 title: Grundtabellen in HTML
-slug: Learn/HTML/Tables/Grund_tabelle_HTML
+slug: Learn/HTML/Tables/Basics
 translation_of: Learn/HTML/Tables/Basics
+original_slug: Learn/HTML/Tables/Grund_tabelle_HTML
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/javascript/bausteine/ereignisse/index.html b/files/de/learn/javascript/building_blocks/events/index.html
index c07922c124..88c8c66afd 100644
--- a/files/de/learn/javascript/bausteine/ereignisse/index.html
+++ b/files/de/learn/javascript/building_blocks/events/index.html
@@ -1,7 +1,8 @@
 ---
 title: Einleitung der Ereignissen
-slug: Learn/JavaScript/Bausteine/Ereignisse
+slug: Learn/JavaScript/Building_blocks/Events
 translation_of: Learn/JavaScript/Building_blocks/Events
+original_slug: Learn/JavaScript/Bausteine/Ereignisse
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/javascript/bausteine/index.html b/files/de/learn/javascript/building_blocks/index.html
index 1c6fb8fc46..842f7f449f 100644
--- a/files/de/learn/javascript/bausteine/index.html
+++ b/files/de/learn/javascript/building_blocks/index.html
@@ -1,7 +1,8 @@
 ---
 title: JavaScript Bausteine
-slug: Learn/JavaScript/Bausteine
+slug: Learn/JavaScript/Building_blocks
 translation_of: Learn/JavaScript/Building_blocks
+original_slug: Learn/JavaScript/Bausteine
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/javascript/first_steps/erster_blick/index.html b/files/de/learn/javascript/first_steps/a_first_splash/index.html
index e772147cae..6f5418d17b 100644
--- a/files/de/learn/javascript/first_steps/erster_blick/index.html
+++ b/files/de/learn/javascript/first_steps/a_first_splash/index.html
@@ -1,7 +1,8 @@
 ---
 title: Ein erster Eindruck von JavaScript
-slug: Learn/JavaScript/First_steps/Erster_Blick
+slug: Learn/JavaScript/First_steps/A_first_splash
 translation_of: Learn/JavaScript/First_steps/A_first_splash
+original_slug: Learn/JavaScript/First_steps/Erster_Blick
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/javascript/first_steps/lustige_geschichten_generator/index.html b/files/de/learn/javascript/first_steps/silly_story_generator/index.html
index 1703f9b6a7..d9d31e7c4f 100644
--- a/files/de/learn/javascript/first_steps/lustige_geschichten_generator/index.html
+++ b/files/de/learn/javascript/first_steps/silly_story_generator/index.html
@@ -1,7 +1,8 @@
 ---
 title: Der Lustige Geschichten Generator
-slug: Learn/JavaScript/First_steps/lustige_geschichten_generator
+slug: Learn/JavaScript/First_steps/Silly_story_generator
 translation_of: Learn/JavaScript/First_steps/Silly_story_generator
+original_slug: Learn/JavaScript/First_steps/lustige_geschichten_generator
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/javascript/first_steps/was_ist_javascript/index.html b/files/de/learn/javascript/first_steps/what_is_javascript/index.html
index 247b4744c5..b3253d448f 100644
--- a/files/de/learn/javascript/first_steps/was_ist_javascript/index.html
+++ b/files/de/learn/javascript/first_steps/what_is_javascript/index.html
@@ -1,7 +1,8 @@
 ---
 title: Was ist JavaScript?
-slug: Learn/JavaScript/First_steps/Was_ist_JavaScript
+slug: Learn/JavaScript/First_steps/What_is_JavaScript
 translation_of: Learn/JavaScript/First_steps/What_is_JavaScript
+original_slug: Learn/JavaScript/First_steps/Was_ist_JavaScript
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/learn/server-side/erste_schritte/index.html b/files/de/learn/server-side/first_steps/index.html
index d2a3cc75ca..46d00ed125 100644
--- a/files/de/learn/server-side/erste_schritte/index.html
+++ b/files/de/learn/server-side/first_steps/index.html
@@ -1,12 +1,13 @@
 ---
 title: Erste Schritte in serverseitiger Webseiten-Programmierung
-slug: Learn/Server-side/Erste_Schritte
+slug: Learn/Server-side/First_steps
 tags:
   - Anfänger
   - Einführung
   - Lernen
   - Serverseitige Programmierung
 translation_of: Learn/Server-side/First_steps
+original_slug: Learn/Server-side/Erste_Schritte
 ---
 <p>{{LearnSidebar}}<br>
  In diesem Modul beantworten wir grundlegende Fragen zur serverseitigen Programmierung - "Was ist das?", "Worin unterscheidet sie sich von der clientseitigen Programmierung?" und "Warum ist sie so nützlich?". Danach geben wir Ihnen einen Überblick über einige der beliebtesten serverseitigen Web-Frameworks und beraten Sie, wie Sie das am besten geeignete Framework für die Erstellung Ihrer ersten Website auswählen können. Schließlich bieten wir auch noch einen Einführungsartikel über Webserver-Sicherheit.</p>
diff --git a/files/de/learn/server-side/erste_schritte/introduction/index.html b/files/de/learn/server-side/first_steps/introduction/index.html
index 2924655941..48ab6570fc 100644
--- a/files/de/learn/server-side/erste_schritte/introduction/index.html
+++ b/files/de/learn/server-side/first_steps/introduction/index.html
@@ -1,10 +1,11 @@
 ---
 title: Einführung auf der Serverseite
-slug: Learn/Server-side/Erste_Schritte/Introduction
+slug: Learn/Server-side/First_steps/Introduction
 tags:
   - Anfänger
   - Einführung
 translation_of: Learn/Server-side/First_steps/Introduction
+original_slug: Learn/Server-side/Erste_Schritte/Introduction
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/de/mdn/über/index.html b/files/de/mdn/about/index.html
index 745152be79..8cdb9aa58e 100644
--- a/files/de/mdn/über/index.html
+++ b/files/de/mdn/about/index.html
@@ -1,7 +1,8 @@
 ---
 title: Über MDN
-slug: MDN/Über
+slug: MDN/About
 translation_of: MDN/About
+original_slug: MDN/Über
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/de/mdn_at_ten/history_of_mdn/index.html b/files/de/mdn/at_ten/history_of_mdn/index.html
index 3e33c984f3..bf0d54302a 100644
--- a/files/de/mdn_at_ten/history_of_mdn/index.html
+++ b/files/de/mdn/at_ten/history_of_mdn/index.html
@@ -1,9 +1,10 @@
 ---
 title: MDNs Geschichte
-slug: MDN_at_ten/History_of_MDN
+slug: MDN/At_ten/History_of_MDN
 tags:
   - MDN
 translation_of: MDN_at_ten/History_of_MDN
+original_slug: MDN_at_ten/History_of_MDN
 ---
 <div class="summary">
 <p>In diesem Gespräch schauen mehrere Mitwirkende von MDN auf die vergangenen zehn Jahre von <a href="https://developer.mozilla.org">developer.mozilla.org</a> zurück und auf das kommende Jahrzehnt. Du wirst die Geschichte verschiedener Wiki-Software-Migrationen hören, wie eine Gemeinschaft rund ums Dokumentieren entstanden ist und viele weitere Highlights der Geschichte dieser Seite. Anschließend spricht die Gruppe auch über aktuelle Herausforderungen und Projekte, an denen die MDN Gemeinschaft dieses Jahr arbeitet.</p>
diff --git a/files/de/mdn_at_ten/index.html b/files/de/mdn/at_ten/index.html
index 91495de944..4be697f063 100644
--- a/files/de/mdn_at_ten/index.html
+++ b/files/de/mdn/at_ten/index.html
@@ -1,10 +1,11 @@
 ---
 title: 10 Jahre MDN
-slug: MDN_at_ten
+slug: MDN/At_ten
 tags:
   - MDN
   - TopicStub
 translation_of: MDN_at_ten
+original_slug: MDN_at_ten
 ---
 <p class="hidden"><span class="seoSummary summary">Feiern Sie zehn Jahre Dokumentation Ihres Internets.</span></p>
 
diff --git a/files/de/mdn/guidelines/style_guide/index.html b/files/de/mdn/guidelines/writing_style_guide/index.html
index 274d9d4f8c..95beba8e3c 100644
--- a/files/de/mdn/guidelines/style_guide/index.html
+++ b/files/de/mdn/guidelines/writing_style_guide/index.html
@@ -1,7 +1,8 @@
 ---
 title: MDN style guide
-slug: MDN/Guidelines/Style_guide
+slug: MDN/Guidelines/Writing_style_guide
 translation_of: MDN/Guidelines/Writing_style_guide
+original_slug: MDN/Guidelines/Style_guide
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/de/mdn/structures/kompatibilitaets_tabellen/index.html b/files/de/mdn/structures/compatibility_tables/index.html
index 758d450e7c..d235d718a3 100644
--- a/files/de/mdn/structures/kompatibilitaets_tabellen/index.html
+++ b/files/de/mdn/structures/compatibility_tables/index.html
@@ -1,9 +1,10 @@
 ---
 title: Kompatibilitäts Tabellen
-slug: MDN/Structures/Kompatibilitaets_Tabellen
+slug: MDN/Structures/Compatibility_tables
 tags:
   - Browser Kompatibilität
 translation_of: MDN/Structures/Compatibility_tables
+original_slug: MDN/Structures/Kompatibilitaets_Tabellen
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/de/mdn/nutzer_leitfaden/index.html b/files/de/mdn/tools/index.html
index 6aeb6703ed..de677e432e 100644
--- a/files/de/mdn/nutzer_leitfaden/index.html
+++ b/files/de/mdn/tools/index.html
@@ -1,8 +1,9 @@
 ---
 title: MDN Benutzerhandbuch
-slug: MDN/nutzer_leitfaden
+slug: MDN/Tools
 translation_of: MDN/Tools
 translation_of_original: MDN/User_guide
+original_slug: MDN/nutzer_leitfaden
 ---
 <div>{{MDNSidebar}}</div><p><span id="result_box" lang="de"><span class="hps">Die</span> <span class="hps">Mozilla Developer Network</span><span>-Website</span> <span class="hps">ist ein fortschrittliches</span> <span class="hps">System</span></span> zum suchen, lesen und eine beitragene Dokumentions Hilfe für Web-Entwickler (<span id="result_box" lang="de"><span>wie auch für</span> <span class="hps">Firefox</span> <span class="hps">und</span> <span class="hps">Firefox</span> <span class="hps">OS</span><span>-Entwickler</span></span>). Die MDN Mitglieder liefern detailierte Artikel welche zum benutzen des MDN, für Dokumentionen die du brauchst und wenn du möchtest die dir helfen das Material besser und weiter und zu vervollständigen, hilft. </p>
 
diff --git a/files/de/mdn/kuma/beheben_von_kumascript_fehlern/index.html b/files/de/mdn/tools/kumascript/troubleshooting/index.html
index 0255388aa1..a7e9a5ca0a 100644
--- a/files/de/mdn/kuma/beheben_von_kumascript_fehlern/index.html
+++ b/files/de/mdn/tools/kumascript/troubleshooting/index.html
@@ -1,7 +1,8 @@
 ---
 title: Beheben von KumaScript Fehlern
-slug: MDN/Kuma/Beheben_von_KumaScript_Fehlern
+slug: MDN/Tools/KumaScript/Troubleshooting
 translation_of: MDN/Tools/KumaScript/Troubleshooting
+original_slug: MDN/Kuma/Beheben_von_KumaScript_Fehlern
 ---
 <div>{{MDNSidebar}}</div><div class="summary">
 <p><a href="/en-US/docs/MDN/Kuma/Introduction_to_KumaScript">KumaScript</a> Fehler plaziert in großen roten Kästen wirken auf die Leser abstossend. Zum Glück kann jedoch jeder mit einem MDN Konto solche Fehler beseitigen. Wenn ein Fehler auf einer Seite auftritt, landet die betreffende Seite in der List der <a href="/docs/with-errors">Dokumente mit Fehlern</a>.  Seitenauthoren gehen diese Seiten regelmäßig durch um Fehler zu finden und zu beseitigen. Dieser Artikel erläutert vier Typen von KumaScript Fehlern und beschreibt einige Methoden zu ihrer Beseitigung.</p>
diff --git a/files/de/mdn/kuma/index.html b/files/de/mdn/yari/index.html
index 06e83f21ee..4a1db717af 100644
--- a/files/de/mdn/kuma/index.html
+++ b/files/de/mdn/yari/index.html
@@ -1,6 +1,6 @@
 ---
 title: 'Kuma: MDN''s wiki platform'
-slug: MDN/Kuma
+slug: MDN/Yari
 tags:
   - Einstieg bei Mozilla
   - Helfen
@@ -8,6 +8,7 @@ tags:
   - MDN Meta
   - Mitarbeiten
 translation_of: MDN/Kuma
+original_slug: MDN/Kuma
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/de/mozilla/add-ons/webextensions/api/lesezeich/index.html b/files/de/mozilla/add-ons/webextensions/api/bookmarks/index.html
index 7c43bda2af..835cd62ecb 100644
--- a/files/de/mozilla/add-ons/webextensions/api/lesezeich/index.html
+++ b/files/de/mozilla/add-ons/webextensions/api/bookmarks/index.html
@@ -1,7 +1,8 @@
 ---
 title: Lesezeichen
-slug: Mozilla/Add-ons/WebExtensions/API/Lesezeich.
+slug: Mozilla/Add-ons/WebExtensions/API/bookmarks
 translation_of: Mozilla/Add-ons/WebExtensions/API/bookmarks
+original_slug: Mozilla/Add-ons/WebExtensions/API/Lesezeich.
 ---
 <div>{{AddonSidebar}}</div>
 
diff --git a/files/de/mozilla/add-ons/webextensions/beispiele/index.html b/files/de/mozilla/add-ons/webextensions/examples/index.html
index 627dbe559d..3994182f13 100644
--- a/files/de/mozilla/add-ons/webextensions/beispiele/index.html
+++ b/files/de/mozilla/add-ons/webextensions/examples/index.html
@@ -1,9 +1,10 @@
 ---
 title: Beispiele für Erweiterungen
-slug: Mozilla/Add-ons/WebExtensions/Beispiele
+slug: Mozilla/Add-ons/WebExtensions/Examples
 tags:
   - WebExtensions
 translation_of: Mozilla/Add-ons/WebExtensions/Examples
+original_slug: Mozilla/Add-ons/WebExtensions/Beispiele
 ---
 <div>{{AddonSidebar}}</div>
 
diff --git a/files/de/mozilla/add-ons/webextensions/arbeiten_mit_taps_api/index.html b/files/de/mozilla/add-ons/webextensions/working_with_the_tabs_api/index.html
index 39498fa606..8064341ca0 100644
--- a/files/de/mozilla/add-ons/webextensions/arbeiten_mit_taps_api/index.html
+++ b/files/de/mozilla/add-ons/webextensions/working_with_the_tabs_api/index.html
@@ -1,9 +1,10 @@
 ---
 title: Arbeiten mit Taps API
-slug: Mozilla/Add-ons/WebExtensions/Arbeiten_mit_Taps_API
+slug: Mozilla/Add-ons/WebExtensions/Working_with_the_Tabs_API
 tags:
   - tabs
 translation_of: Mozilla/Add-ons/WebExtensions/Working_with_the_Tabs_API
+original_slug: Mozilla/Add-ons/WebExtensions/Arbeiten_mit_Taps_API
 ---
 <p>{{AddonSidebar}}</p>
 
diff --git a/files/de/mozilla/add-ons/webextensions/deine_erste_weberweiterung/index.html b/files/de/mozilla/add-ons/webextensions/your_first_webextension/index.html
index b48b805b98..c46aaeffad 100644
--- a/files/de/mozilla/add-ons/webextensions/deine_erste_weberweiterung/index.html
+++ b/files/de/mozilla/add-ons/webextensions/your_first_webextension/index.html
@@ -1,11 +1,12 @@
 ---
 title: Deine erste Erweiterung
-slug: Mozilla/Add-ons/WebExtensions/Deine_erste_WebErweiterung
+slug: Mozilla/Add-ons/WebExtensions/Your_first_WebExtension
 tags:
   - Anleitung
   - Erweiterung
   - Weberweiterung
 translation_of: Mozilla/Add-ons/WebExtensions/Your_first_WebExtension
+original_slug: Mozilla/Add-ons/WebExtensions/Deine_erste_WebErweiterung
 ---
 <div>{{AddonSidebar}}</div>
 
diff --git a/files/de/mozilla/add-ons/webextensions/deine_zweite_erweiterung/index.html b/files/de/mozilla/add-ons/webextensions/your_second_webextension/index.html
index cc002d0b24..6cfeba72ac 100644
--- a/files/de/mozilla/add-ons/webextensions/deine_zweite_erweiterung/index.html
+++ b/files/de/mozilla/add-ons/webextensions/your_second_webextension/index.html
@@ -1,7 +1,8 @@
 ---
 title: Deine zweite Erweiterung
-slug: Mozilla/Add-ons/WebExtensions/Deine_zweite_Erweiterung
+slug: Mozilla/Add-ons/WebExtensions/Your_second_WebExtension
 translation_of: Mozilla/Add-ons/WebExtensions/Your_second_WebExtension
+original_slug: Mozilla/Add-ons/WebExtensions/Deine_zweite_Erweiterung
 ---
 <p>{{AddonSidebar}}</p>
 
diff --git a/files/de/mozilla/developer_guide/firefox_erfolgreich_erstellt/index.html b/files/de/mozilla/developer_guide/so_you_just_built_firefox/index.html
index 1734710732..bc9aca7bd7 100644
--- a/files/de/mozilla/developer_guide/firefox_erfolgreich_erstellt/index.html
+++ b/files/de/mozilla/developer_guide/so_you_just_built_firefox/index.html
@@ -1,7 +1,8 @@
 ---
-title: 'So, Du hast Firefox erfolgreich erstellt'
-slug: Mozilla/Developer_guide/firefox_erfolgreich_erstellt
+title: So, Du hast Firefox erfolgreich erstellt
+slug: Mozilla/Developer_guide/So_you_just_built_Firefox
 translation_of: Mozilla/Developer_guide/So_you_just_built_Firefox
+original_slug: Mozilla/Developer_guide/firefox_erfolgreich_erstellt
 ---
 <p>Ein Link zu dieser Seite wird nach dem erfolgreichen Erstellen von Firefox angezeigt. Diese Seite sollte nützliche nächste Schritte enthalten, wie Links wie man Test laufen lassen kann, Build packen kann, etc. Der Inhalt hier sollte kurz gehalten werden, genauere Informationen sollten in den verlinkten Seiten hinzugefügt werden. Die Zielgruppe sind Besucher, die gerade Firefox zum ersten mal gebaut haben.</p>
 
diff --git a/files/de/mozilla/developer_guide/quelltexte/index.html b/files/de/mozilla/developer_guide/source_code/index.html
index b5cc6c79bb..246dc6c1ef 100644
--- a/files/de/mozilla/developer_guide/quelltexte/index.html
+++ b/files/de/mozilla/developer_guide/source_code/index.html
@@ -1,7 +1,8 @@
 ---
 title: Mit Mozilla Quellcode arbeiten
-slug: Mozilla/Developer_guide/Quelltexte
+slug: Mozilla/Developer_guide/Source_Code
 translation_of: Mozilla/Developer_guide/Source_Code
+original_slug: Mozilla/Developer_guide/Quelltexte
 ---
 <p>Die unten aufgeführten Artikel helfen Ihnen dabei mit dem Mozilla Quelltext umgehen zu können, zu lernen wie man durch den Code navigiert und wie Änderungen in Projekte einfließen können.</p>
 
diff --git a/files/de/firefox_1.5_für_entwickler/changing_the_priority_of_http_requests/index.html b/files/de/mozilla/firefox/releases/1.5/changing_the_priority_of_http_requests/index.html
index 3bb91c8f5a..04c686899e 100644
--- a/files/de/firefox_1.5_für_entwickler/changing_the_priority_of_http_requests/index.html
+++ b/files/de/mozilla/firefox/releases/1.5/changing_the_priority_of_http_requests/index.html
@@ -1,9 +1,10 @@
 ---
 title: Die Priorität von HTTP-Anfragen ändern
-slug: Firefox_1.5_für_Entwickler/Changing_the_priority_of_HTTP_requests
+slug: Mozilla/Firefox/Releases/1.5/Changing_the_priority_of_HTTP_requests
 tags:
   - HTTP
 translation_of: Mozilla/Firefox/Releases/1.5/Changing_the_priority_of_HTTP_requests
+original_slug: Firefox_1.5_für_Entwickler/Changing_the_priority_of_HTTP_requests
 ---
 <div>{{FirefoxSidebar}}</div>
 
diff --git a/files/de/firefox_1.5_für_entwickler/index.html b/files/de/mozilla/firefox/releases/1.5/index.html
index 087bc441aa..c549c60935 100644
--- a/files/de/firefox_1.5_für_entwickler/index.html
+++ b/files/de/mozilla/firefox/releases/1.5/index.html
@@ -1,6 +1,6 @@
 ---
 title: Firefox_1.5_für_Entwickler
-slug: Firefox_1.5_für_Entwickler
+slug: Mozilla/Firefox/Releases/1.5
 tags:
   - CSS
   - DOM
@@ -17,6 +17,7 @@ tags:
   - XSLT
   - XUL
 translation_of: Mozilla/Firefox/Releases/1.5
+original_slug: Firefox_1.5_für_Entwickler
 ---
 <div>{{FirefoxSidebar}}</div><p>Basierend auf der <a href="/de/Gecko" title="de/Gecko">Gecko</a> 1.8 Engine, verbessert Firefox 1.5 die Unterstützung von Webstandards und stellt neue Fähigkeiten zur Verfügung, um die nächste Generationen von Webapplikationen zu ermöglichen. Firefox 1.5 verbessert die Unterstützung von CSS2 und CSS3, führt neue APIs für skript- und programmierbare 2D Grafiken durch <a href="/de/SVG" title="de/SVG">SVG</a> 1.1 und durch <a href="/de/HTML/canvas" title="de/HTML/canvas"><code>&lt;canvas&gt;</code></a> ein, lernt <a href="/de/XForms" title="de/XForms">XForms</a> und XML Events kennen und wird außerdem viele DHTML, JavaScript und DOM Erweiterungen mit sich bringen.</p>
 
diff --git a/files/de/benutzen_des_zwischenspeichers_in_firefox_1.5_(caching)/index.html b/files/de/mozilla/firefox/releases/1.5/using_firefox_1.5_caching/index.html
index cac83f31ce..b06920e46e 100644
--- a/files/de/benutzen_des_zwischenspeichers_in_firefox_1.5_(caching)/index.html
+++ b/files/de/mozilla/firefox/releases/1.5/using_firefox_1.5_caching/index.html
@@ -1,11 +1,12 @@
 ---
 title: Benutzen des Zwischenspeichers in Firefox 1.5 (caching)
-slug: Benutzen_des_Zwischenspeichers_in_Firefox_1.5_(caching)
+slug: Mozilla/Firefox/Releases/1.5/Using_Firefox_1.5_caching
 tags:
   - Caching
   - Firefox 1.5
   - JavaScript
 translation_of: Mozilla/Firefox/Releases/1.5/Using_Firefox_1.5_caching
+original_slug: Benutzen_des_Zwischenspeichers_in_Firefox_1.5_(caching)
 ---
 <div>{{FirefoxSidebar}}</div><h3 id="Einführung">Einführung</h3>
 
diff --git a/files/de/firefox_3.5_für_entwickler/index.html b/files/de/mozilla/firefox/releases/3.5/index.html
index 33e6a0c728..62f396aed9 100644
--- a/files/de/firefox_3.5_für_entwickler/index.html
+++ b/files/de/mozilla/firefox/releases/3.5/index.html
@@ -1,10 +1,11 @@
 ---
 title: Firefox_3.5_für_Entwickler
-slug: Firefox_3.5_für_Entwickler
+slug: Mozilla/Firefox/Releases/3.5
 tags:
   - Firefox 3.5
   - Gecko 1.9.1
 translation_of: Mozilla/Firefox/Releases/3.5
+original_slug: Firefox_3.5_für_Entwickler
 ---
 <div>{{FirefoxSidebar}}</div><p>In <a class="external" href="http://www.firefox.com">Firefox 3.5</a> wurde eine nicht geringe Zahl an neuen Bestandteilen eingeführt, darunter zusätzliche und verbesserte Unterstützung für eine Vielzahl von Webstandards. Dieser Artikel stellt eine umfangreiche Liste mit Links zu anderen Artikeln über die Hauptverbesserungen zur Verfügung.</p>
 
diff --git a/files/de/firefox_3_für_entwickler/index.html b/files/de/mozilla/firefox/releases/3/index.html
index 3db4c6f4e3..fd28100abc 100644
--- a/files/de/firefox_3_für_entwickler/index.html
+++ b/files/de/mozilla/firefox/releases/3/index.html
@@ -1,9 +1,10 @@
 ---
 title: Firefox 3 für Entwickler
-slug: Firefox_3_für_Entwickler
+slug: Mozilla/Firefox/Releases/3
 tags:
   - Firefox 3
 translation_of: Mozilla/Firefox/Releases/3
+original_slug: Firefox_3_für_Entwickler
 ---
 <div>{{FirefoxSidebar}}</div><p>Wenn Sie als Entwickler versuchen mit den neuen Funktionen in Firefox 3 umzugehen, ist dies der perfekte Ort, um zu beginnen. Dieser Seite liefert eine Liste der neuen Artikel, die die in Firefox 3 neu hinzugekommenen Funktionen erläutern. Es wird sicher nicht jede kleine Änderung erfasst werden können, allerdings hilft werden die hauptsächlichen Verbesserungen in Firefox 3 vorgestellt.</p>
 
diff --git a/files/de/erweiterungen_für_firefox_3_aktualisieren/index.html b/files/de/mozilla/firefox/releases/3/updating_extensions/index.html
index 409fc00546..8d95c681f7 100644
--- a/files/de/erweiterungen_für_firefox_3_aktualisieren/index.html
+++ b/files/de/mozilla/firefox/releases/3/updating_extensions/index.html
@@ -1,9 +1,10 @@
 ---
 title: Erweiterungen für Firefox 3 aktualisieren
-slug: Erweiterungen_für_Firefox_3_aktualisieren
+slug: Mozilla/Firefox/Releases/3/Updating_extensions
 tags:
   - Firefox 3
 translation_of: Mozilla/Firefox/Releases/3/Updating_extensions
+original_slug: Erweiterungen_für_Firefox_3_aktualisieren
 ---
 <div><section class="Quick_links" id="Quick_Links">
   <ol>
diff --git a/files/de/updating_web_applications_for_firefox_3/index.html b/files/de/mozilla/firefox/releases/3/updating_web_applications/index.html
index c727ef5df2..907b0facdb 100644
--- a/files/de/updating_web_applications_for_firefox_3/index.html
+++ b/files/de/mozilla/firefox/releases/3/updating_web_applications/index.html
@@ -1,9 +1,10 @@
 ---
 title: Webanwendungen für Firefox 3 aktualisieren
-slug: Updating_web_applications_for_Firefox_3
+slug: Mozilla/Firefox/Releases/3/Updating_web_applications
 tags:
   - Firefox 3
 translation_of: Mozilla/Firefox/Releases/3/Updating_web_applications
+original_slug: Updating_web_applications_for_Firefox_3
 ---
 <div>{{FirefoxSidebar}}</div>
 
diff --git a/files/de/learn/mitarbeiten/index.html b/files/de/orphaned/learn/how_to_contribute/index.html
index 02405b9280..d24468d628 100644
--- a/files/de/learn/mitarbeiten/index.html
+++ b/files/de/orphaned/learn/how_to_contribute/index.html
@@ -1,6 +1,6 @@
 ---
 title: Zum MDN Lern-Bereich beitragen
-slug: Learn/Mitarbeiten
+slug: orphaned/Learn/How_to_contribute
 tags:
   - Anfänger
   - Anleitung
@@ -9,6 +9,7 @@ tags:
   - MDN Meta
   - Mitmachen
 translation_of: Learn/How_to_contribute
+original_slug: Learn/Mitarbeiten
 ---
 <p>{{LearnSidebar}}</p>
 
diff --git a/files/de/mdn/über/link_zu_mdn/index.html b/files/de/orphaned/mdn/about/linking_to_mdn/index.html
index 47411ecf30..8190820adf 100644
--- a/files/de/mdn/über/link_zu_mdn/index.html
+++ b/files/de/orphaned/mdn/about/linking_to_mdn/index.html
@@ -1,11 +1,12 @@
 ---
 title: Verknüpfung zu MDN
-slug: MDN/Über/Link_zu_MDN
+slug: orphaned/MDN/About/Linking_to_MDN
 tags:
   - Anleitung
   - MDN Meta
   - Richtlinien
 translation_of: MDN/About/Linking_to_MDN
+original_slug: MDN/Über/Link_zu_MDN
 ---
 <div>{{MDNSidebar}}</div><p><span class="seoSummary">Wir bekommen regelmässige Anfragen von Benutzern, wie Verknüpfungen (Link) zu MDN erstellt werden können, und ob dies überhaupt erlaubt ist. Die kurze Antwort ist: <strong>Ja!</strong> Wie das am besten zu bewerkstelligen ist, wird im folgenden Abschnitt erklärt, bitte weiterlesen!</span></p>
 
diff --git a/files/de/mdn/community/index.html b/files/de/orphaned/mdn/community/index.html
index f8df9274e7..10a501f93a 100644
--- a/files/de/mdn/community/index.html
+++ b/files/de/orphaned/mdn/community/index.html
@@ -1,6 +1,6 @@
 ---
 title: Tritt der MDN-Gemeinschaft bei
-slug: MDN/Community
+slug: orphaned/MDN/Community
 tags:
   - Community
   - Guide
@@ -8,6 +8,7 @@ tags:
   - MDN Meta
   - Meeting
 translation_of: MDN/Community
+original_slug: MDN/Community
 ---
 <div>{{MDNSidebar}}</div>
 
diff --git a/files/de/mdn/community/bleibe_auf_dem_laufenden/index.html b/files/de/orphaned/mdn/community/whats_happening/index.html
index cd5c500e41..2c036d5b55 100644
--- a/files/de/mdn/community/bleibe_auf_dem_laufenden/index.html
+++ b/files/de/orphaned/mdn/community/whats_happening/index.html
@@ -1,12 +1,13 @@
 ---
 title: Bleibe auf dem Laufenden
-slug: MDN/Community/Bleibe_auf_dem_Laufenden
+slug: orphaned/MDN/Community/Whats_happening
 tags:
   - Anfänger
   - Community
   - Guide
   - MDN-Meta
 translation_of: MDN/Community/Whats_happening
+original_slug: MDN/Community/Bleibe_auf_dem_Laufenden
 ---
 <div>{{MDNSidebar}}</div><p>MDN wird von der <a href="https://wiki.mozilla.org/MDN">Mozilla Developer Network Community (englisch)</a> erstellt. Hier sind ein paar Kanäle, über die wir Informationen darüber teilen, an was wir arbeiten.</p>
 
diff --git a/files/de/mdn/contribute/howto/erstellung_eines_mdn_profils/index.html b/files/de/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
index d0f017a0f1..77a3de681c 100644
--- a/files/de/mdn/contribute/howto/erstellung_eines_mdn_profils/index.html
+++ b/files/de/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
@@ -1,10 +1,11 @@
 ---
 title: Anleitung zur Erstellung eines MDN Profils
-slug: MDN/Contribute/Howto/ERstellung_eines_MDN_Profils
+slug: orphaned/MDN/Contribute/Howto/Create_an_MDN_account
 tags:
   - Anfänger
   - Einführung
 translation_of: MDN/Contribute/Howto/Create_an_MDN_account
+original_slug: MDN/Contribute/Howto/ERstellung_eines_MDN_Profils
 ---
 <div>{{MDNSidebar}}</div><p><span class="Summary">Um Änderungen an den Inhalten von MDN vornehmen zu können, brauchst du ein MDN - Profil (egal ob du Seiten ändern oder eine Demo hinzufügen willst). Aber keine Angst, du brauchst kein Profil wenn du in MDN lesen oder suchen  willst. </span></p>
 
diff --git a/files/de/mdn/contribute/howto/do_a_technical_review/index.html b/files/de/orphaned/mdn/contribute/howto/do_a_technical_review/index.html
index 0f52932293..1494124ece 100644
--- a/files/de/mdn/contribute/howto/do_a_technical_review/index.html
+++ b/files/de/orphaned/mdn/contribute/howto/do_a_technical_review/index.html
@@ -1,7 +1,8 @@
 ---
 title: Wie eine technische Überprüfung gemacht wird
-slug: MDN/Contribute/Howto/Do_a_technical_review
+slug: orphaned/MDN/Contribute/Howto/Do_a_technical_review
 translation_of: MDN/Contribute/Howto/Do_a_technical_review
+original_slug: MDN/Contribute/Howto/Do_a_technical_review
 ---
 <div>{{MDNSidebar}}</div><p class="summary"><strong>Technische Überprüfungen beinhalten die Prüfung der technischen Genauigkeit und Vollständigkeit eines Artikels und gegebenenfalls dessen Korrektur.</strong> Falls ein Autor eines Artikels will, dass jemand anderes den technischen Inhalt eines Artikels überprüft, so kann er das Kontrollkästchen "Technisch – Quelltext-Ausschnitte, APIs oder Technologien" während der Bearbeitung anhaken. Oftmals kontaktiert der Autor eine bestimmte Person, damit diese die technische Überprüfung durchführt, jedoch kann jeder mit technischer Expertise im jeweiligen Bereich diese durchführen.</p>
 
diff --git a/files/de/mdn/contribute/howto/do_an_editorial_review/index.html b/files/de/orphaned/mdn/contribute/howto/do_an_editorial_review/index.html
index 2c8df95aa6..77d548f8f5 100644
--- a/files/de/mdn/contribute/howto/do_an_editorial_review/index.html
+++ b/files/de/orphaned/mdn/contribute/howto/do_an_editorial_review/index.html
@@ -1,7 +1,8 @@
 ---
 title: Wie eine redaktionelle Überprüfung gemacht wird
-slug: MDN/Contribute/Howto/Do_an_editorial_review
+slug: orphaned/MDN/Contribute/Howto/Do_an_editorial_review
 translation_of: MDN/Contribute/Howto/Do_an_editorial_review
+original_slug: MDN/Contribute/Howto/Do_an_editorial_review
 ---
 <div>{{MDNSidebar}}</div><p class="summary"><strong>Redaktionelle Überprüfungen beinhalten die Korrigierung von Tipp-, Rechtschreib-, Grammatik- oder Benutzungsfehlern - also ausdrücklich keine inhaltliche Zensur - in einem Artikel. Nicht alle Mitwirkenden sind Sprachexperten, haben jedoch durch ihr Wissen äußerst nützliche Artikel beigetragen, welche korrekturgelesen werden müssen.</strong> Dies findet in der redaktionellen Überprüfung statt.</p>
 
diff --git a/files/de/web/css/property_template/index.html b/files/de/orphaned/mdn/contribute/howto/document_a_css_property/property_template/index.html
index 57b2483609..d598b08986 100644
--- a/files/de/web/css/property_template/index.html
+++ b/files/de/orphaned/mdn/contribute/howto/document_a_css_property/property_template/index.html
@@ -1,11 +1,12 @@
 ---
 title: Eigenschaft Vorlage
-slug: Web/CSS/Property_Template
+slug: orphaned/MDN/Contribute/Howto/Document_a_CSS_property/Property_template
 tags:
   - CSS
   - CSS Referenz
   - MDN Meta
 translation_of: MDN/Contribute/Howto/Document_a_CSS_property/Property_template
+original_slug: Web/CSS/Property_Template
 ---
 <div>{{MDNSidebar}}</div><div>{{ CSSRef() }}</div>
 
diff --git a/files/de/mdn/contribute/howto/set_the_summary_for_a_page/index.html b/files/de/orphaned/mdn/contribute/howto/set_the_summary_for_a_page/index.html
index 8c30eb2dcb..0a3a9d6e0a 100644
--- a/files/de/mdn/contribute/howto/set_the_summary_for_a_page/index.html
+++ b/files/de/orphaned/mdn/contribute/howto/set_the_summary_for_a_page/index.html
@@ -1,10 +1,11 @@
 ---
 title: Wie erstelle ich eine Zusammenfassung für eine Seite
-slug: MDN/Contribute/Howto/Set_the_summary_for_a_page
+slug: orphaned/MDN/Contribute/Howto/Set_the_summary_for_a_page
 tags:
   - Beginner
   - Guide
 translation_of: MDN/Contribute/Howto/Set_the_summary_for_a_page
+original_slug: MDN/Contribute/Howto/Set_the_summary_for_a_page
 ---
 <div>{{MDNSidebar}}</div><p><span class="seoSummary">Sie können die Zusammenfassung einer Seite am MDN definieren, diese wird in verschiedenen Arten verwendet, einschließlich in Suchmaschinenergebnissen, auf anderen MDN Seiten wie als Themeneinführung, und in Tooltipps.</span> Es sollte ein Text sein, welcher in Zusammenhang mit der Seite, als auch alleine Sinn macht.</p>
 
diff --git a/files/de/mdn/contribute/howto/schlagwörter_für_javascript_seiten/index.html b/files/de/orphaned/mdn/contribute/howto/tag_javascript_pages/index.html
index 42a1d25435..b868d50373 100644
--- a/files/de/mdn/contribute/howto/schlagwörter_für_javascript_seiten/index.html
+++ b/files/de/orphaned/mdn/contribute/howto/tag_javascript_pages/index.html
@@ -1,7 +1,8 @@
 ---
 title: Wie man JavaScript bezogene Seiten mit Schlagworten versieht
-slug: MDN/Contribute/Howto/Schlagwörter_für_JavaScript_Seiten
+slug: orphaned/MDN/Contribute/Howto/Tag_JavaScript_pages
 translation_of: MDN/Contribute/Howto/Tag_JavaScript_pages
+original_slug: MDN/Contribute/Howto/Schlagwörter_für_JavaScript_Seiten
 ---
 <div>{{MDNSidebar}}</div><p class="summary"><strong>Schlagwörter sind Metadaten, welche helfen den Inhalt einer Seite </strong>zusammenzufassen um unteranderem die Suche zu verbessern.</p>
 
diff --git a/files/de/plugins/flash-aktivierung_colon__browser-vergleich/index.html b/files/de/orphaned/plugins/flash_activation_colon__browser_comparison/index.html
index a9f1244e75..327f59a7fd 100644
--- a/files/de/plugins/flash-aktivierung_colon__browser-vergleich/index.html
+++ b/files/de/orphaned/plugins/flash_activation_colon__browser_comparison/index.html
@@ -1,7 +1,8 @@
 ---
 title: 'Aktivierung von Flash: Vergleich verschiedener Browser'
-slug: 'Plugins/Flash-Aktivierung:_Browser-Vergleich'
-translation_of: 'Plugins/Flash_Activation:_Browser_Comparison'
+slug: orphaned/Plugins/Flash_Activation:_Browser_Comparison
+translation_of: Plugins/Flash_Activation:_Browser_Comparison
+original_slug: Plugins/Flash-Aktivierung:_Browser-Vergleich
 ---
 <p>Alle wichtigen Browser haben inzwischen eine Funktion implementiert, durch welche Inhalte von Adobe Flash standardmäßig nicht ausgeführt werden, aber in jedem dieser Browser gibt es Unterschiede in Implementierung und Benutzeroberfläche. Diese Anleitung zeigt sowohl die Gemeinsamkeiten als auch die Unterschiede der Browser, damit Webentwickler dem Endnutzer die bestmögliche Erfahrung bieten können. Eine weitere Anleitung unterstützt die Website-Autoren bei der <a href="/en-US/docs/Plugins/Flash_to_HTML5">Migration weg von Flash</a>.</p>
 
diff --git a/files/de/dom_inspector/index.html b/files/de/orphaned/tools/add-ons/dom_inspector/index.html
index 20c3654c81..700296ded7 100644
--- a/files/de/dom_inspector/index.html
+++ b/files/de/orphaned/tools/add-ons/dom_inspector/index.html
@@ -1,7 +1,8 @@
 ---
 title: DOM Inspector
-slug: DOM_Inspector
+slug: orphaned/Tools/Add-ons/DOM_Inspector
 translation_of: Tools/Add-ons/DOM_Inspector
+original_slug: DOM_Inspector
 ---
 <div>{{ToolsSidebar}}</div><p>Der <strong>DOM Inspector</strong> (auch bekannt als <strong>DOMi</strong>) ist ein Entwicklertool, das zum Besichtigen, Durchsuchen und Editieren des <a href="/en/DOM" title="en/DOM">Document Object Model</a> von Dokumenten benutzt wird  - normalerweise Websiten oder <a href="/en/XUL" title="en/XUL">XUL</a> Fenster. Die DOM Hierarchie kann mit Hilfe eines zweigeteilten Fensters navigiert werden, welches die Vielfalt von verschiedenen Ansichten auf das Dokument und alle darin enthaltenen Nodes erlaubt.</p>
 
diff --git a/files/de/tools/add-ons/index.html b/files/de/orphaned/tools/add-ons/index.html
index 24ffbe79e9..05b25237f5 100644
--- a/files/de/tools/add-ons/index.html
+++ b/files/de/orphaned/tools/add-ons/index.html
@@ -1,12 +1,13 @@
 ---
 title: Add-ons
-slug: Tools/Add-ons
+slug: orphaned/Tools/Add-ons
 tags:
   - NeedsTranslation
   - TopicStub
   - Web Development
-  - 'Web Development:Tools'
+  - Web Development:Tools
 translation_of: Tools/Add-ons
+original_slug: Tools/Add-ons
 ---
 <div>{{ToolsSidebar}}</div><p>Developer tools that are not built into Firefox, but ship as separate add-ons.</p>
 
diff --git a/files/de/tools/webide_clone/index.html b/files/de/orphaned/tools/webide_clone/index.html
index c0be23b241..6bb83a7256 100644
--- a/files/de/tools/webide_clone/index.html
+++ b/files/de/orphaned/tools/webide_clone/index.html
@@ -1,6 +1,7 @@
 ---
 title: WebIDE
-slug: Tools/WebIDE_clone
+slug: orphaned/Tools/WebIDE_clone
+original_slug: Tools/WebIDE_clone
 ---
 <div>{{ToolsSidebar}}</div><div class="geckoVersionNote">
 <p>Die WebIDE ist in Firexfox 34 und neuer verfügbar</p>
diff --git a/files/de/web/css/index/index.html b/files/de/orphaned/web/css/index/index.html
index 2c59185221..9841f31ef8 100644
--- a/files/de/web/css/index/index.html
+++ b/files/de/orphaned/web/css/index/index.html
@@ -1,8 +1,9 @@
 ---
 title: CSS Dokumentationsverzeichnis
-slug: Web/CSS/Index
+slug: orphaned/Web/CSS/Index
 tags:
   - CSS
 translation_of: Web/CSS/Index
+original_slug: Web/CSS/Index
 ---
 <p>{{Index("/de/docs/Web/CSS")}}</p>
diff --git a/files/de/web/html/globale_attribute/dropzone/index.html b/files/de/orphaned/web/html/global_attributes/dropzone/index.html
index 4d0667217f..4aa40e2edc 100644
--- a/files/de/web/html/globale_attribute/dropzone/index.html
+++ b/files/de/orphaned/web/html/global_attributes/dropzone/index.html
@@ -1,9 +1,10 @@
 ---
 title: dropzone
-slug: Web/HTML/Globale_Attribute/dropzone
+slug: orphaned/Web/HTML/Global_attributes/dropzone
 tags:
   - Experimentell
 translation_of: Web/HTML/Global_attributes/dropzone
+original_slug: Web/HTML/Globale_Attribute/dropzone
 ---
 <p class="note">{{HTMLSidebar("Global_attributes")}}{{SeeCompatTable}}</p>
 
diff --git a/files/de/web/javascript/reference/global_objects/array/prototypen/index.html b/files/de/orphaned/web/javascript/reference/global_objects/array/prototype/index.html
index dcab74024e..95f0758c00 100644
--- a/files/de/web/javascript/reference/global_objects/array/prototypen/index.html
+++ b/files/de/orphaned/web/javascript/reference/global_objects/array/prototype/index.html
@@ -1,11 +1,12 @@
 ---
 title: Array.Prototypen
-slug: Web/JavaScript/Reference/Global_Objects/Array/Prototypen
+slug: orphaned/Web/JavaScript/Reference/Global_Objects/Array/prototype
 tags:
   - Array
   - JavaScript
   - Property
 translation_of: Web/JavaScript/Reference/Global_Objects/Array/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/Array/Prototypen
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/asyncfunction/prototype/index.html b/files/de/orphaned/web/javascript/reference/global_objects/asyncfunction/prototype/index.html
index 2dc516ca5c..61f13c6b93 100644
--- a/files/de/web/javascript/reference/global_objects/asyncfunction/prototype/index.html
+++ b/files/de/orphaned/web/javascript/reference/global_objects/asyncfunction/prototype/index.html
@@ -1,6 +1,6 @@
 ---
 title: AsyncFunction.prototype
-slug: Web/JavaScript/Reference/Global_Objects/AsyncFunction/prototype
+slug: orphaned/Web/JavaScript/Reference/Global_Objects/AsyncFunction/prototype
 tags:
   - Experimental
   - JavaScript
@@ -8,6 +8,7 @@ tags:
   - Prototype
   - Reference
 translation_of: Web/JavaScript/Reference/Global_Objects/AsyncFunction/prototype
+original_slug: Web/JavaScript/Reference/Global_Objects/AsyncFunction/prototype
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/tools/3d_untersuchung/index.html b/files/de/tools/3d_view/index.html
index 061ce4f11b..bd0569db73 100644
--- a/files/de/tools/3d_untersuchung/index.html
+++ b/files/de/tools/3d_view/index.html
@@ -1,7 +1,8 @@
 ---
 title: 3D-Untersuchung
-slug: Tools/3D_untersuchung
+slug: Tools/3D_View
 translation_of: Tools/3D_View
+original_slug: Tools/3D_untersuchung
 ---
 <div>{{ToolsSidebar}}</div>
 <div class="warning">
diff --git a/files/de/tools/barrierefreiheits_inspektor/index.html b/files/de/tools/accessibility_inspector/index.html
index 24195cabad..74b8577520 100644
--- a/files/de/tools/barrierefreiheits_inspektor/index.html
+++ b/files/de/tools/accessibility_inspector/index.html
@@ -1,7 +1,8 @@
 ---
 title: Barrierefreiheitsinspektor
-slug: Tools/Barrierefreiheits_inspektor
+slug: Tools/Accessibility_inspector
 translation_of: Tools/Accessibility_inspector
+original_slug: Tools/Barrierefreiheits_inspektor
 ---
 <p>{{ToolsSidebar}}</p>
 
diff --git a/files/de/tools/browser_werkzeuge/index.html b/files/de/tools/browser_toolbox/index.html
index 63c820a218..69ec13509a 100644
--- a/files/de/tools/browser_werkzeuge/index.html
+++ b/files/de/tools/browser_toolbox/index.html
@@ -1,12 +1,13 @@
 ---
 title: Browser_Werkzeuge
-slug: Tools/Browser_Werkzeuge
+slug: Tools/Browser_Toolbox
 tags:
   - Developer
   - Fehlerbehebung
   - Firefox
   - JavaScript
 translation_of: Tools/Browser_Toolbox
+original_slug: Tools/Browser_Werkzeuge
 ---
 <div>{{ToolsSidebar}}</div><p>Die Browser-Werkzeuge sind wie die normale <a href="/de/docs/Tools/Web_Konsole">Webkonsole</a>, aber funktionieren mit dem ganzen Browser und nicht nur mit einem einzelnen Tab. Es erlaubt Ihnen die normalen Entwicklertools für den Browser an sich zu benutzen, statt nur für eine Seite. Dies erlaubt Ihnen dann auch das debuggen von Addons und vom browsereigenen JavaScript Code und nicht nur von Internetseiten.</p>
 
diff --git a/files/de/tools/netzwerkanalyse/index.html b/files/de/tools/network_monitor/index.html
index 1eed8449f5..066d643331 100644
--- a/files/de/tools/netzwerkanalyse/index.html
+++ b/files/de/tools/network_monitor/index.html
@@ -1,7 +1,8 @@
 ---
 title: Netzwerkanalyse
-slug: Tools/netzwerkanalyse
+slug: Tools/Network_Monitor
 translation_of: Tools/Network_Monitor
+original_slug: Tools/netzwerkanalyse
 ---
 <div>{{ToolsSidebar}}</div><p>Die Netzwerkanalyse zeigt Ihnen alle Netzwerkanfragen in Firefox  (z. B. wenn er eine Seite lädt oder über <a href="/docs/Web/API/XMLHttpRequest">XMLHttpRequests</a>), wie lange jede Anfrage gedauert hat und Details dazu. Um die Analyseansicht zu öffnen, wählen Sie „Netzwerkanalyse“ im Menü „Web-Entwickler“ (welches ein Untermenü von „Extras“ unter Mac und Linux ist) oder öffnen Sie die Entwickler-Symbolleiste und wechseln Sie zum Reiter „Netzwerk“.</p>
 
diff --git a/files/de/tools/page_inspector/how_to/schriftarten_bearbeitung/index.html b/files/de/tools/page_inspector/how_to/edit_fonts/index.html
index 0106b4d282..36432b5afa 100644
--- a/files/de/tools/page_inspector/how_to/schriftarten_bearbeitung/index.html
+++ b/files/de/tools/page_inspector/how_to/edit_fonts/index.html
@@ -1,7 +1,8 @@
 ---
 title: Schriftarten Bearbeitung
-slug: Tools/Page_Inspector/How_to/Schriftarten_Bearbeitung
+slug: Tools/Page_Inspector/How_to/Edit_fonts
 translation_of: Tools/Page_Inspector/How_to/Edit_fonts
+original_slug: Tools/Page_Inspector/How_to/Schriftarten_Bearbeitung
 ---
 <div>{{ToolsSidebar}}</div>
 
diff --git a/files/de/tools/page_inspector/how_to/event_listener_untersuchen/index.html b/files/de/tools/page_inspector/how_to/examine_event_listeners/index.html
index ac8aca1c8a..b6902fb365 100644
--- a/files/de/tools/page_inspector/how_to/event_listener_untersuchen/index.html
+++ b/files/de/tools/page_inspector/how_to/examine_event_listeners/index.html
@@ -1,11 +1,12 @@
 ---
 title: Event Listener untersuchen
-slug: Tools/Page_Inspector/How_to/Event_Listener_untersuchen
+slug: Tools/Page_Inspector/How_to/Examine_event_listeners
 tags:
   - Guide
   - Inspector
   - Werkzeuge
 translation_of: Tools/Page_Inspector/How_to/Examine_event_listeners
+original_slug: Tools/Page_Inspector/How_to/Event_Listener_untersuchen
 ---
 <div>{{ToolsSidebar}}</div><p>Seit Firefox 33 wird ein "ev" Symbol im <a href="/de/docs/Tools/Page_Inspector/UI_Tour#HTML_panel">HTML Panel</a> neben Elementen angezeigt, an die Event Listener gebunden sind:</p>
 
diff --git a/files/de/tools/page_inspector/how_to/raster_layout_untersuchen/index.html b/files/de/tools/page_inspector/how_to/examine_grid_layouts/index.html
index 0318a735a4..a18d24dabd 100644
--- a/files/de/tools/page_inspector/how_to/raster_layout_untersuchen/index.html
+++ b/files/de/tools/page_inspector/how_to/examine_grid_layouts/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'CSS Raster Inspektor: Raster-Layout untersuchen'
-slug: Tools/Page_Inspector/How_to/Raster_Layout_untersuchen
+slug: Tools/Page_Inspector/How_to/Examine_grid_layouts
 tags:
   - Anleitung
   - Inspektor
   - Raster
   - Tools
 translation_of: Tools/Page_Inspector/How_to/Examine_grid_layouts
+original_slug: Tools/Page_Inspector/How_to/Raster_Layout_untersuchen
 ---
 <div>{{ToolsSidebar}}</div>
 
diff --git a/files/de/tools/seiten_inspektor/index.html b/files/de/tools/page_inspector/index.html
index f44fe105ce..d083871dd0 100644
--- a/files/de/tools/seiten_inspektor/index.html
+++ b/files/de/tools/page_inspector/index.html
@@ -1,7 +1,8 @@
 ---
 title: Seiteninspektor
-slug: Tools/Seiten_Inspektor
+slug: Tools/Page_Inspector
 translation_of: Tools/Page_Inspector
+original_slug: Tools/Seiten_Inspektor
 ---
 <div>{{ToolsSidebar}}</div><p>{{ fx_minversion_header("10") }}</p>
 
diff --git a/files/de/tools/seiten_inspektor/tastenkombinationen/index.html b/files/de/tools/page_inspector/keyboard_shortcuts/index.html
index a77ee75e45..5122f001eb 100644
--- a/files/de/tools/seiten_inspektor/tastenkombinationen/index.html
+++ b/files/de/tools/page_inspector/keyboard_shortcuts/index.html
@@ -1,7 +1,8 @@
 ---
 title: Tastenkombinationen
-slug: Tools/Seiten_Inspektor/Tastenkombinationen
+slug: Tools/Page_Inspector/Keyboard_shortcuts
 translation_of: Tools/Page_Inspector/Keyboard_shortcuts
+original_slug: Tools/Seiten_Inspektor/Tastenkombinationen
 ---
 <div>{{ToolsSidebar}}</div>
 
diff --git a/files/de/tools/bildschirmgroessen-testen/index.html b/files/de/tools/responsive_design_mode/index.html
index 08921cb77d..2e0a7e817e 100644
--- a/files/de/tools/bildschirmgroessen-testen/index.html
+++ b/files/de/tools/responsive_design_mode/index.html
@@ -1,7 +1,8 @@
 ---
 title: Bildschirmgrößen testen
-slug: Tools/bildschirmgroessen-testen
+slug: Tools/Responsive_Design_Mode
 translation_of: Tools/Responsive_Design_Mode
+original_slug: Tools/bildschirmgroessen-testen
 ---
 <div>{{ToolsSidebar}}</div><p><a href="/en-US/docs/Web_Development/Responsive_Web_design">Responsive Designs</a> passen sich an verschiedene Bildschirmgrößen an um auf verschiedenen Arten von Geräten, wie zum Beispiel Mobilgeräte oder Tablets, angemessen dargestellt zu werden. Die Ansicht "Bildschirmgrößen testen" macht es einfach zu sehen, wie Ihre Webseite oder Web-App auf verschiedenen Bildschirmgrößen aussehen wird.</p>
 
diff --git a/files/de/tools/shader-editor/index.html b/files/de/tools/shader_editor/index.html
index baf56c7597..ea3b93f1d8 100644
--- a/files/de/tools/shader-editor/index.html
+++ b/files/de/tools/shader_editor/index.html
@@ -1,7 +1,8 @@
 ---
 title: Shader Editor
-slug: Tools/Shader-Editor
+slug: Tools/Shader_Editor
 translation_of: Tools/Shader_Editor
+original_slug: Tools/Shader-Editor
 ---
 <div>{{ToolsSidebar}}</div><p>Der Shader Editor ermöglicht es, Vertex- and Fragment-Shader unter Verwendung von <a href="/en-US/docs/Web/WebGL">WebGL</a> zu editieren.</p>
 
diff --git a/files/de/tools/web_konsole/hilfe/index.html b/files/de/tools/web_console/helpers/index.html
index d8dd2b0241..ffe2e4dc8e 100644
--- a/files/de/tools/web_konsole/hilfe/index.html
+++ b/files/de/tools/web_console/helpers/index.html
@@ -1,6 +1,6 @@
 ---
 title: Konsole Bild
-slug: Tools/Web_Konsole/Hilfe
+slug: Tools/Web_Console/Helpers
 tags:
   - Anfänger
   - Befehle
@@ -12,6 +12,7 @@ tags:
   - Maxi
   - Übersetzung
 translation_of: Tools/Web_Console/Helpers
+original_slug: Tools/Web_Konsole/Hilfe
 ---
 <div>{{ToolsSidebar}}</div><h2 id="Die_Befehle">Die Befehle</h2>
 
diff --git a/files/de/tools/web_konsole/index.html b/files/de/tools/web_console/index.html
index 1616e7c9a7..94e8985e89 100644
--- a/files/de/tools/web_konsole/index.html
+++ b/files/de/tools/web_console/index.html
@@ -1,7 +1,8 @@
 ---
 title: Web-Konsole
-slug: Tools/Web_Konsole
+slug: Tools/Web_Console
 translation_of: Tools/Web_Console
+original_slug: Tools/Web_Konsole
 ---
 <div>{{ToolsSidebar}}</div>
 
diff --git a/files/de/web/barrierefreiheit/an_overview_of_accessible_web_applications_and_widgets/index.html b/files/de/web/accessibility/an_overview_of_accessible_web_applications_and_widgets/index.html
index 3aa0530a35..912fcdbdf8 100644
--- a/files/de/web/barrierefreiheit/an_overview_of_accessible_web_applications_and_widgets/index.html
+++ b/files/de/web/accessibility/an_overview_of_accessible_web_applications_and_widgets/index.html
@@ -1,6 +1,6 @@
 ---
 title: Übersicht zu barrierefreien Web-Applikationen und Komponenten
-slug: Web/Barrierefreiheit/An_overview_of_accessible_web_applications_and_widgets
+slug: Web/Accessibility/An_overview_of_accessible_web_applications_and_widgets
 tags:
   - ARIA
   - Accessibility
@@ -9,6 +9,7 @@ tags:
   - Komponente
   - Web apps
 translation_of: Web/Accessibility/An_overview_of_accessible_web_applications_and_widgets
+original_slug: Web/Barrierefreiheit/An_overview_of_accessible_web_applications_and_widgets
 ---
 <p>Das Web entwickelt sich weiter: Statische seitenbasierte Websites werden zunehmend durch dynamische, desktopartige Web-Applikationen ersetzt, die mit JavaScript und AJAX arbeiten. Designer erstellen allein durch die Kombination von JavaScript, HTML und CSS beeindruckende neue Benutzeroberflächen und Steuerungsmechanismen. Dieser Wandel hat das Potential, durch responsives Design die Benutzerfreundlichkeit enorm zu verbessern, doch besteht für viele Benutzer die Gefahr wegen Zugänglichkeitsbarrieren ausgeschlossen zu werden. JavaScript hat keinen sehr guten Ruf, was die Barrierefreiheit anbelangt, da JavaScript-Techniken oft Probleme in Kombination mit Unterstützungstechnologie wie z.B. Screenreadern verursachen. Es gibt jedoch andere Möglichkeiten, dynamische Oberflächen zu erstellen, damit diese auch für Menschen mit Behinderungen ohne Einschränkungen benutzbar sind.</p>
 
diff --git a/files/de/web/barrierefreiheit/aria/aria_live_regionen/index.html b/files/de/web/accessibility/aria/aria_live_regions/index.html
index 4e1f22e0b5..31fa476ec1 100644
--- a/files/de/web/barrierefreiheit/aria/aria_live_regionen/index.html
+++ b/files/de/web/accessibility/aria/aria_live_regions/index.html
@@ -1,7 +1,8 @@
 ---
 title: ARIA Live-Regionen
-slug: Web/Barrierefreiheit/ARIA/ARIA_Live_Regionen
+slug: Web/Accessibility/ARIA/ARIA_Live_Regions
 translation_of: Web/Accessibility/ARIA/ARIA_Live_Regions
+original_slug: Web/Barrierefreiheit/ARIA/ARIA_Live_Regionen
 ---
 <h2 id="Einführung">Einführung</h2>
 <p>In der Vergangenheit konnten Änderungen bei Webseiten nur so von einem Screenreader kommuniziert werden, dass der komplette Inhalt vorgelesen oder nur sehr wenig bis gar nichts über die Inhaltsänderungen berichtet wurde. Dies führte dazu, dass einige oder sogar alle Informationen unzugänglich waren. Bisher waren Screenreader nicht in der Lage, diese Situation zu verbessern, weil es keine standardisierte Methode gab, um Screenreader per Markup über Veränderungen zu informieren. ARIA-Live-Regionen sollen diese Lücke schließen. Über Live-Regionen erhalten Screenreader Anweisungen, wonach entschieden werden kann, ob und wann Benutzer unterbrochen werden sollen, um sie über Veränderungen des Inhalts in Kenntnis zu setzen.</p>
diff --git a/files/de/web/barrierefreiheit/aria/aria_techniken/index.html b/files/de/web/accessibility/aria/aria_techniques/index.html
index 85059df7a2..1cc6ac4748 100644
--- a/files/de/web/barrierefreiheit/aria/aria_techniken/index.html
+++ b/files/de/web/accessibility/aria/aria_techniques/index.html
@@ -1,10 +1,11 @@
 ---
 title: ARIA Techniken
-slug: Web/Barrierefreiheit/ARIA/ARIA_Techniken
+slug: Web/Accessibility/ARIA/ARIA_Techniques
 tags:
   - ARIA
   - Accessibility
 translation_of: Web/Accessibility/ARIA/ARIA_Techniques
+original_slug: Web/Barrierefreiheit/ARIA/ARIA_Techniken
 ---
 <p> </p>
 
diff --git a/files/de/web/barrierefreiheit/aria/index.html b/files/de/web/accessibility/aria/index.html
index c282ef8f95..2f68015ca9 100644
--- a/files/de/web/barrierefreiheit/aria/index.html
+++ b/files/de/web/accessibility/aria/index.html
@@ -1,7 +1,8 @@
 ---
 title: ARIA
-slug: Web/Barrierefreiheit/ARIA
+slug: Web/Accessibility/ARIA
 translation_of: Web/Accessibility/ARIA
+original_slug: Web/Barrierefreiheit/ARIA
 ---
 <p>Accessible Rich Internet Applications <strong>(ARIA)</strong> ermöglichen Webentwicklern Webinhalte und Web-Applikationen (insbesondere solche mit Ajax und JavaScript) besser zugänglich für Menschen mit Behinderungen und anderen Einschränkungen zu machen. Zum Beispiel lassen sich mit ARIA Navigations-Landmarken, JavaScript-Widgets, Formular-Hinweise und Fehlermeldungen hinzufügen und Live-Content-Aktualisierungen barrierefrei gestalten.</p>
 
diff --git a/files/de/web/barrierefreiheit/index.html b/files/de/web/accessibility/index.html
index 417c160fd0..d9b827a87f 100644
--- a/files/de/web/barrierefreiheit/index.html
+++ b/files/de/web/accessibility/index.html
@@ -1,10 +1,11 @@
 ---
 title: Barrierefreiheit
-slug: Web/Barrierefreiheit
+slug: Web/Accessibility
 tags:
   - Accessibility
   - Barrierefreiheit
 translation_of: Web/Accessibility
+original_slug: Web/Barrierefreiheit
 ---
 <p><span class="seoSummary"><strong>Accessibility</strong> (often abbreviated to <strong>A11y</strong>—as in "a" then 11 characters then "y") in Web development means enabling as many people as possible to use Web sites, even when those people's abilities are limited in some way. </span></p>
 
diff --git a/files/de/web/barrierefreiheit/tastaturgesteuerte_javascript_komponenten/index.html b/files/de/web/accessibility/keyboard-navigable_javascript_widgets/index.html
index 2dedfc7aab..59cb293155 100644
--- a/files/de/web/barrierefreiheit/tastaturgesteuerte_javascript_komponenten/index.html
+++ b/files/de/web/accessibility/keyboard-navigable_javascript_widgets/index.html
@@ -1,7 +1,8 @@
 ---
 title: Tastaturgesteuerte JavaScript-Komponenten
-slug: Web/Barrierefreiheit/Tastaturgesteuerte_JavaScript_Komponenten
+slug: Web/Accessibility/Keyboard-navigable_JavaScript_widgets
 translation_of: Web/Accessibility/Keyboard-navigable_JavaScript_widgets
+original_slug: Web/Barrierefreiheit/Tastaturgesteuerte_JavaScript_Komponenten
 ---
 <p>Tastaturgesteuerte JavaScript-Komponenten</p>
 <h3 id="Übersicht">Übersicht</h3>
diff --git a/files/de/web/api/audiocontext/decodeaudiodata/index.html b/files/de/web/api/baseaudiocontext/decodeaudiodata/index.html
index 32cfda28eb..e6df1628da 100644
--- a/files/de/web/api/audiocontext/decodeaudiodata/index.html
+++ b/files/de/web/api/baseaudiocontext/decodeaudiodata/index.html
@@ -1,7 +1,8 @@
 ---
 title: AudioContext.decodeAudioData()
-slug: Web/API/AudioContext/decodeAudioData
+slug: Web/API/BaseAudioContext/decodeAudioData
 translation_of: Web/API/BaseAudioContext/decodeAudioData
+original_slug: Web/API/AudioContext/decodeAudioData
 ---
 <p>{{ APIRef("Web Audio API") }}</p>
 
diff --git a/files/de/web/html/canvas/index.html b/files/de/web/api/canvas_api/index.html
index 50e6da1aae..44daf6fc6f 100644
--- a/files/de/web/html/canvas/index.html
+++ b/files/de/web/api/canvas_api/index.html
@@ -1,11 +1,12 @@
 ---
 title: Canvas
-slug: Web/HTML/Canvas
+slug: Web/API/Canvas_API
 tags:
   - API
   - Canvas
   - HTML5
 translation_of: Web/API/Canvas_API
+original_slug: Web/HTML/Canvas
 ---
 <div>{{CanvasSidebar}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/advanced_animations/index.html b/files/de/web/api/canvas_api/tutorial/advanced_animations/index.html
index 10c4a7650c..f1419b0ca3 100644
--- a/files/de/web/guide/html/canvas_tutorial/advanced_animations/index.html
+++ b/files/de/web/api/canvas_api/tutorial/advanced_animations/index.html
@@ -1,11 +1,12 @@
 ---
 title: Fortgeschrittene Animationen
-slug: Web/Guide/HTML/Canvas_Tutorial/Advanced_animations
+slug: Web/API/Canvas_API/Tutorial/Advanced_animations
 tags:
   - Canvas
   - Graphics
   - Tutoria
 translation_of: Web/API/Canvas_API/Tutorial/Advanced_animations
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Advanced_animations
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Basic_animations", "Web/API/Canvas_API/Tutorial/Pixel_manipulation_with_canvas")}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/applying_styles_and_colors/index.html b/files/de/web/api/canvas_api/tutorial/applying_styles_and_colors/index.html
index 6caa27b3ef..41294db494 100644
--- a/files/de/web/guide/html/canvas_tutorial/applying_styles_and_colors/index.html
+++ b/files/de/web/api/canvas_api/tutorial/applying_styles_and_colors/index.html
@@ -1,7 +1,8 @@
 ---
 title: Stile und Farben verwenden
-slug: Web/Guide/HTML/Canvas_Tutorial/Applying_styles_and_colors
+slug: Web/API/Canvas_API/Tutorial/Applying_styles_and_colors
 translation_of: Web/API/Canvas_API/Tutorial/Applying_styles_and_colors
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Applying_styles_and_colors
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Drawing_shapes", "Web/API/Canvas_API/Tutorial/Drawing_text")}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/basic_animations/index.html b/files/de/web/api/canvas_api/tutorial/basic_animations/index.html
index 78ca0ac2fc..89fa97fd4d 100644
--- a/files/de/web/guide/html/canvas_tutorial/basic_animations/index.html
+++ b/files/de/web/api/canvas_api/tutorial/basic_animations/index.html
@@ -1,7 +1,8 @@
 ---
 title: Einfache Animationen
-slug: Web/Guide/HTML/Canvas_Tutorial/Basic_animations
+slug: Web/API/Canvas_API/Tutorial/Basic_animations
 translation_of: Web/API/Canvas_API/Tutorial/Basic_animations
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Basic_animations
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Compositing", "Web/API/Canvas_API/Tutorial/Advanced_animations")}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/grundlagen/index.html b/files/de/web/api/canvas_api/tutorial/basic_usage/index.html
index f89af7fa04..1cfa846355 100644
--- a/files/de/web/guide/html/canvas_tutorial/grundlagen/index.html
+++ b/files/de/web/api/canvas_api/tutorial/basic_usage/index.html
@@ -1,6 +1,6 @@
 ---
 title: Grundlagen Canvas
-slug: Web/Guide/HTML/Canvas_Tutorial/Grundlagen
+slug: Web/API/Canvas_API/Tutorial/Basic_usage
 tags:
   - Canvas
   - Graphics
@@ -8,6 +8,7 @@ tags:
   - Intermediate
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Basic_usage
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Grundlagen
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial", "Web/API/Canvas_API/Tutorial/Drawing_shapes")}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/formen_zeichnen/index.html b/files/de/web/api/canvas_api/tutorial/drawing_shapes/index.html
index f23e7664b5..f12dc90556 100644
--- a/files/de/web/guide/html/canvas_tutorial/formen_zeichnen/index.html
+++ b/files/de/web/api/canvas_api/tutorial/drawing_shapes/index.html
@@ -1,7 +1,8 @@
 ---
 title: Formen zeichnen mit Canvas
-slug: Web/Guide/HTML/Canvas_Tutorial/Formen_zeichnen
+slug: Web/API/Canvas_API/Tutorial/Drawing_shapes
 translation_of: Web/API/Canvas_API/Tutorial/Drawing_shapes
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Formen_zeichnen
 ---
 <p>{{CanvasSidebar}}</p>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/drawing_text/index.html b/files/de/web/api/canvas_api/tutorial/drawing_text/index.html
index 1cd3f0bfc6..78ecf28150 100644
--- a/files/de/web/guide/html/canvas_tutorial/drawing_text/index.html
+++ b/files/de/web/api/canvas_api/tutorial/drawing_text/index.html
@@ -1,12 +1,13 @@
 ---
 title: Text zeichnen
-slug: Web/Guide/HTML/Canvas_Tutorial/Drawing_text
+slug: Web/API/Canvas_API/Tutorial/Drawing_text
 tags:
   - Canvas
   - Fortgeschritten
   - Grafik
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Drawing_text
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Drawing_text
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Applying_styles_and_colors", "Web/API/Canvas_API/Tutorial/Using_images")}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/index.html b/files/de/web/api/canvas_api/tutorial/index.html
index 487f5b7984..99ff410a90 100644
--- a/files/de/web/guide/html/canvas_tutorial/index.html
+++ b/files/de/web/api/canvas_api/tutorial/index.html
@@ -1,7 +1,8 @@
 ---
 title: Canvas Tutorial
-slug: Web/Guide/HTML/Canvas_Tutorial
+slug: Web/API/Canvas_API/Tutorial
 translation_of: Web/API/Canvas_API/Tutorial
+original_slug: Web/Guide/HTML/Canvas_Tutorial
 ---
 <p><a href="/en-US/docs/HTML/Canvas" title="HTML/Canvas"><img alt="" src="https://mdn.mozillademos.org/files/257/Canvas_tut_examples.jpg" style="float: right; height: 450px; width: 200px;"></a></p>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/canvas_optimieren/index.html b/files/de/web/api/canvas_api/tutorial/optimizing_canvas/index.html
index fc1678c71a..23c59c1b3e 100644
--- a/files/de/web/guide/html/canvas_tutorial/canvas_optimieren/index.html
+++ b/files/de/web/api/canvas_api/tutorial/optimizing_canvas/index.html
@@ -1,6 +1,6 @@
 ---
 title: Canvas optimieren
-slug: Web/Guide/HTML/Canvas_Tutorial/Canvas_optimieren
+slug: Web/API/Canvas_API/Tutorial/Optimizing_canvas
 tags:
   - Canvas
   - Fortgeschritten
@@ -9,6 +9,7 @@ tags:
   - HTML5
   - Tutorial
 translation_of: Web/API/Canvas_API/Tutorial/Optimizing_canvas
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Canvas_optimieren
 ---
 <div>{{CanvasSidebar}} {{PreviousNext("Web/API/Canvas_API/Tutorial/Hit_regions_and_accessibility", "Web/API/Canvas_API/Tutorial/Finale")}}</div>
 
diff --git a/files/de/web/guide/html/canvas_tutorial/bilder/index.html b/files/de/web/api/canvas_api/tutorial/using_images/index.html
index b636807f97..7ae83415fe 100644
--- a/files/de/web/guide/html/canvas_tutorial/bilder/index.html
+++ b/files/de/web/api/canvas_api/tutorial/using_images/index.html
@@ -1,7 +1,8 @@
 ---
 title: Bilder
-slug: Web/Guide/HTML/Canvas_Tutorial/Bilder
+slug: Web/API/Canvas_API/Tutorial/Using_images
 translation_of: Web/API/Canvas_API/Tutorial/Using_images
+original_slug: Web/Guide/HTML/Canvas_Tutorial/Bilder
 ---
 <p>{{CanvasSidebar}}</p>
 
diff --git a/files/de/web/events/readystatechange/index.html b/files/de/web/api/document/readystatechange_event/index.html
index 9fba4b5dee..80f23816a0 100644
--- a/files/de/web/events/readystatechange/index.html
+++ b/files/de/web/api/document/readystatechange_event/index.html
@@ -1,10 +1,11 @@
 ---
 title: readystatechange
-slug: Web/Events/readystatechange
+slug: Web/API/Document/readystatechange_event
 tags:
   - Referenz
   - XMLHttpRequest
 translation_of: Web/API/Document/readystatechange_event
+original_slug: Web/Events/readystatechange
 ---
 <p>{{ApiRef}}</p>
 
diff --git a/files/de/dom/index.html b/files/de/web/api/document_object_model/index.html
index a16a254129..c103d9df41 100644
--- a/files/de/dom/index.html
+++ b/files/de/web/api/document_object_model/index.html
@@ -1,10 +1,11 @@
 ---
 title: DOM
-slug: DOM
+slug: Web/API/Document_Object_Model
 tags:
   - DOM
 translation_of: Web/API/Document_Object_Model
 translation_of_original: DOM
+original_slug: DOM
 ---
 <div class="callout-box"><strong><a href="/de/docs/Verwendung_des_W3C_DOM_Level_1" title="Verwendung des W3C DOM Level 1">Verwendung des W3C DOM Level 1</a></strong><br>
 Einführung in das W3C DOM.</div>
diff --git a/files/de/web/api/file/typ/index.html b/files/de/web/api/file/type/index.html
index 28c57a4cb1..fc025a0e29 100644
--- a/files/de/web/api/file/typ/index.html
+++ b/files/de/web/api/file/type/index.html
@@ -1,7 +1,8 @@
 ---
 title: File.type
-slug: Web/API/File/Typ
+slug: Web/API/File/type
 translation_of: Web/API/File/type
+original_slug: Web/API/File/Typ
 ---
 <div>{{APIRef("File API")}}</div>
 
diff --git a/files/de/web/api/file/zugriff_auf_dateien_von_webapplikationen/index.html b/files/de/web/api/file/using_files_from_web_applications/index.html
index c44ac4b9df..8668db9434 100644
--- a/files/de/web/api/file/zugriff_auf_dateien_von_webapplikationen/index.html
+++ b/files/de/web/api/file/using_files_from_web_applications/index.html
@@ -1,7 +1,8 @@
 ---
 title: Zugriff auf Dateien von Webapplikationen
-slug: Web/API/File/Zugriff_auf_Dateien_von_Webapplikationen
+slug: Web/API/File/Using_files_from_web_applications
 translation_of: Web/API/File/Using_files_from_web_applications
+original_slug: Web/API/File/Zugriff_auf_Dateien_von_Webapplikationen
 ---
 <p>Mithilfe der File API, welche mit HTML5 zum DOM hinzugefügt wurde, ist es nun für Webinhalte möglich den Benutzer lokale Dateien auswählen zu lassen und den Inhalt dieser Dateien auszulesen. Die Auswahl kann entweder durch das HTML Element {{ HTMLElement("input") }} oder durch Drag and Drop erfolgen.</p>
 
diff --git a/files/de/web/api/vollbild_api/index.html b/files/de/web/api/fullscreen_api/index.html
index 1ddce4c572..7c3956f019 100644
--- a/files/de/web/api/vollbild_api/index.html
+++ b/files/de/web/api/fullscreen_api/index.html
@@ -1,6 +1,6 @@
 ---
 title: Vollbild API
-slug: Web/API/Vollbild_API
+slug: Web/API/Fullscreen_API
 tags:
   - API
   - DOM
@@ -8,6 +8,7 @@ tags:
   - Tutorial
   - Vollbild API
 translation_of: Web/API/Fullscreen_API
+original_slug: Web/API/Vollbild_API
 ---
 <p>{{DefaultAPISidebar("Fullscreen API")}}</p>
 
diff --git a/files/de/web/webapi/verwenden_von_geolocation/index.html b/files/de/web/api/geolocation_api/index.html
index 65be452a5a..6762b5cfa9 100644
--- a/files/de/web/webapi/verwenden_von_geolocation/index.html
+++ b/files/de/web/api/geolocation_api/index.html
@@ -1,7 +1,8 @@
 ---
 title: Verwenden von geolocation
-slug: Web/WebAPI/verwenden_von_geolocation
+slug: Web/API/Geolocation_API
 translation_of: Web/API/Geolocation_API
+original_slug: Web/WebAPI/verwenden_von_geolocation
 ---
 <p>Die <strong>"geolocation"-API</strong> ermöglicht es Nutzern, einer Web-Applikation die eigene Position mitzuteilen. Um die Privatsphäre des Nutzers zu schützen, wird dieser vorher um Erlaubnis gebeten und muss der Übermittlung zustimmen.</p>
 
diff --git a/files/de/web/guide/dom/manipulating_the_browser_history/index.html b/files/de/web/api/history_api/index.html
index 6f59cbbdc3..3edfdbc082 100644
--- a/files/de/web/guide/dom/manipulating_the_browser_history/index.html
+++ b/files/de/web/api/history_api/index.html
@@ -1,9 +1,10 @@
 ---
 title: Manipulieren des Browser-Verlaufes
-slug: Web/Guide/DOM/Manipulating_the_browser_history
+slug: Web/API/History_API
 tags:
   - Verlauf
 translation_of: Web/API/History_API
+original_slug: Web/Guide/DOM/Manipulating_the_browser_history
 ---
 <p>Das DOM {{ domxref("window") }} Objekt stellt Zugriffsmöglichkeiten auf den Browser-Verlauf über das {{ domxref("window.history", "history") }} Objekt bereit. Es bietet nützliche Methoden und Einstellungen, die es ermöglichen, den Zurück- und Vorwärts-Button und den Browser-Verlauf zu steuern und – seit HTML5 – diesen auch zu manipulieren</p>
 
diff --git a/files/de/dragdrop/index.html b/files/de/web/api/html_drag_and_drop_api/index.html
index 292b860888..4e0d481d93 100644
--- a/files/de/dragdrop/index.html
+++ b/files/de/web/api/html_drag_and_drop_api/index.html
@@ -1,11 +1,12 @@
 ---
 title: DragDrop
-slug: DragDrop
+slug: Web/API/HTML_Drag_and_Drop_API
 tags:
   - NeedsTranslation
   - TopicStub
 translation_of: Web/API/HTML_Drag_and_Drop_API
 translation_of_original: DragDrop
+original_slug: DragDrop
 ---
 <p> </p>
 <p>See <a href="https://developer.mozilla.org/en-US/docs/DragDrop/Drag_and_Drop">https://developer.mozilla.org/en-US/docs/DragDrop/Drag_and_Drop</a></p>
diff --git a/files/de/web/events/change/index.html b/files/de/web/api/htmlelement/change_event/index.html
index 8836b6bc67..0d39f658fc 100644
--- a/files/de/web/events/change/index.html
+++ b/files/de/web/api/htmlelement/change_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: change
-slug: Web/Events/change
+slug: Web/API/HTMLElement/change_event
 translation_of: Web/API/HTMLElement/change_event
+original_slug: Web/Events/change
 ---
 <p>Das <code>change</code> Event wird von {{HTMLElement("input")}}, {{HTMLElement("select")}}, und {{HTMLElement("textarea")}} Elementen ausgelöst, wenn der Benutzer den Wert des Elements verändert. Im Gegensatz zum {{event("input")}} Event wird das <code>change</code> Event nicht bei jeder Änderung der <code>value</code> Eigenschaft ausgelöst.</p>
 
diff --git a/files/de/web/api/node/innertext/index.html b/files/de/web/api/htmlelement/innertext/index.html
index bd1594471a..1eb8c79e7f 100644
--- a/files/de/web/api/node/innertext/index.html
+++ b/files/de/web/api/htmlelement/innertext/index.html
@@ -1,9 +1,10 @@
 ---
 title: Node.innerText
-slug: Web/API/Node/innerText
+slug: Web/API/HTMLElement/innerText
 tags:
   - API DOM Property Reference
 translation_of: Web/API/HTMLElement/innerText
+original_slug: Web/API/Node/innerText
 ---
 <div>{{APIRef("DOM")}}</div>
 
diff --git a/files/de/web/html/element/head/index.html b/files/de/web/api/htmlheadelement/index.html
index 1c71988bda..0f2e2020d5 100644
--- a/files/de/web/html/element/head/index.html
+++ b/files/de/web/api/htmlheadelement/index.html
@@ -1,11 +1,12 @@
 ---
 title: head
-slug: Web/HTML/Element/head
+slug: Web/API/HTMLHeadElement
 tags:
   - HTML
   - HTML Elemente
   - HTML Referenz
 translation_of: Web/API/HTMLHeadElement
+original_slug: Web/HTML/Element/head
 ---
 <p>Das <code>&lt;head&gt;</code> HTML Element legt den Kopf eines Dokuments fest. In diesem werden Informationen für das Dokument angegeben, darunter der Dokumententitel und Meta-Daten.</p>
 
diff --git a/files/de/web/api/indexeddb_api/grundkonzepte_hinter_indexeddb/index.html b/files/de/web/api/indexeddb_api/basic_concepts_behind_indexeddb/index.html
index 6ae6f33dd7..1e4ce579e2 100644
--- a/files/de/web/api/indexeddb_api/grundkonzepte_hinter_indexeddb/index.html
+++ b/files/de/web/api/indexeddb_api/basic_concepts_behind_indexeddb/index.html
@@ -1,7 +1,8 @@
 ---
 title: Grundkonzepte
-slug: Web/API/IndexedDB_API/Grundkonzepte_hinter_IndexedDB
+slug: Web/API/IndexedDB_API/Basic_Concepts_Behind_IndexedDB
 translation_of: Web/API/IndexedDB_API/Basic_Concepts_Behind_IndexedDB
+original_slug: Web/API/IndexedDB_API/Grundkonzepte_hinter_IndexedDB
 ---
 <p><strong>IndexedDB</strong> ermöglicht es Ihnen Daten innerhalb des Browsers eines Benutzers permanent abzulegen. Weil es Sie Webanwendungen mit funktionsreichen Abfragemöglichkeiten erstellen lässt, können diese Anwendungen sowohl online als auch offline funktionieren. IndexedDB ist geeignet für Anwendungen, die eine große Menge an Daten speichern (z.B. ein Katalog von DVDs in einer Videothek) und Anwendungen, die keine durchgehende Internetverbindung benötigen um zu funktionieren (z.B. E-Mail-Clients, To-Do-Listen oder Notizen).</p>
 <h2 id="Über_dieses_Dokument">Über dieses Dokument</h2>
diff --git a/files/de/web/api/indexeddb_api/indexeddb_verwenden/index.html b/files/de/web/api/indexeddb_api/using_indexeddb/index.html
index 3d6d61cf3f..4b1cc60e4d 100644
--- a/files/de/web/api/indexeddb_api/indexeddb_verwenden/index.html
+++ b/files/de/web/api/indexeddb_api/using_indexeddb/index.html
@@ -1,7 +1,8 @@
 ---
 title: Verwendung von IndexedDB
-slug: Web/API/IndexedDB_API/IndexedDB_verwenden
+slug: Web/API/IndexedDB_API/Using_IndexedDB
 translation_of: Web/API/IndexedDB_API/Using_IndexedDB
+original_slug: Web/API/IndexedDB_API/IndexedDB_verwenden
 ---
 <p>Mit IndexedDB lassen sich Daten innerhalb des Browsers eines Benutzers permanent abzulegen. Es können so Webanwendungen mit funktionsreichen Abfragemöglichkeiten in Anwendungen erstellt werden, die sowohl online als auch offline funktionieren können, da keine Netzwerkfunktionalitäten benötigt werden.</p>
 
diff --git a/files/de/web/api/navigator/registerprotocolhandler/webbasierte_protokoll-handler/index.html b/files/de/web/api/navigator/registerprotocolhandler/web-based_protocol_handlers/index.html
index 5f48e63097..068b2244e9 100644
--- a/files/de/web/api/navigator/registerprotocolhandler/webbasierte_protokoll-handler/index.html
+++ b/files/de/web/api/navigator/registerprotocolhandler/web-based_protocol_handlers/index.html
@@ -1,7 +1,8 @@
 ---
 title: Webbasierte Protokoll-Handler
-slug: Web/API/Navigator/registerProtocolHandler/Webbasierte_protokoll-handler
+slug: Web/API/Navigator/registerProtocolHandler/Web-based_protocol_handlers
 translation_of: Web/API/Navigator/registerProtocolHandler/Web-based_protocol_handlers
+original_slug: Web/API/Navigator/registerProtocolHandler/Webbasierte_protokoll-handler
 ---
 <div>{{Fx_minversion_header(3)}}</div>
 
diff --git a/files/de/web/api/webgl_api/tutorial/hinzufügen_von_2d_inhalten_in_einen_webgl-kontext/index.html b/files/de/web/api/webgl_api/tutorial/adding_2d_content_to_a_webgl_context/index.html
index 56c267f394..e7e22ad619 100644
--- a/files/de/web/api/webgl_api/tutorial/hinzufügen_von_2d_inhalten_in_einen_webgl-kontext/index.html
+++ b/files/de/web/api/webgl_api/tutorial/adding_2d_content_to_a_webgl_context/index.html
@@ -1,9 +1,10 @@
 ---
 title: Hinzufügen von 2D Inhalten in einen WebGL-Kontext
-slug: Web/API/WebGL_API/Tutorial/Hinzufügen_von_2D_Inhalten_in_einen_WebGL-Kontext
+slug: Web/API/WebGL_API/Tutorial/Adding_2D_content_to_a_WebGL_context
 tags:
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Adding_2D_content_to_a_WebGL_context
+original_slug: Web/API/WebGL_API/Tutorial/Hinzufügen_von_2D_Inhalten_in_einen_WebGL-Kontext
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{PreviousNext("Web/API/WebGL_API/Tutorial/Einführung_in_WebGL", "Web/API/WebGL_API/Tutorial/Farben_mittels_Shader_in_einen_WebGL-Kontext_hinzufügen")}}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/objekte_mit_webgl_animieren/index.html b/files/de/web/api/webgl_api/tutorial/animating_objects_with_webgl/index.html
index a9eafed6db..bec456ac7e 100644
--- a/files/de/web/api/webgl_api/tutorial/objekte_mit_webgl_animieren/index.html
+++ b/files/de/web/api/webgl_api/tutorial/animating_objects_with_webgl/index.html
@@ -1,10 +1,11 @@
 ---
 title: Objekte mit WebGL animieren
-slug: Web/API/WebGL_API/Tutorial/Objekte_mit_WebGL_animieren
+slug: Web/API/WebGL_API/Tutorial/Animating_objects_with_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Animating_objects_with_WebGL
+original_slug: Web/API/WebGL_API/Tutorial/Objekte_mit_WebGL_animieren
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{PreviousNext("Web/API/WebGL_API/Tutorial/Farben_mittels_Shader_in_einen_WebGL-Kontext_hinzufügen", "Web/API/WebGL_API/Tutorial/3D-Objekte_mit_WebGL_erstellen") }}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/animierte_texturen_in_webgl/index.html b/files/de/web/api/webgl_api/tutorial/animating_textures_in_webgl/index.html
index bfeb362b8e..5ded1d1c9b 100644
--- a/files/de/web/api/webgl_api/tutorial/animierte_texturen_in_webgl/index.html
+++ b/files/de/web/api/webgl_api/tutorial/animating_textures_in_webgl/index.html
@@ -1,10 +1,11 @@
 ---
 title: Animierte Texturen in WebGL
-slug: Web/API/WebGL_API/Tutorial/Animierte_Texturen_in_WebGL
+slug: Web/API/WebGL_API/Tutorial/Animating_textures_in_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Animating_textures_in_WebGL
+original_slug: Web/API/WebGL_API/Tutorial/Animierte_Texturen_in_WebGL
 ---
 <p>{{WebGLSidebar("Tutorial") }} {{Previous("Web/API/WebGL_API/Tutorial/Beleuchtung_in_WebGL")}}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/3d-objekte_mit_webgl_erstellen/index.html b/files/de/web/api/webgl_api/tutorial/creating_3d_objects_using_webgl/index.html
index d3a21591fd..df264a040e 100644
--- a/files/de/web/api/webgl_api/tutorial/3d-objekte_mit_webgl_erstellen/index.html
+++ b/files/de/web/api/webgl_api/tutorial/creating_3d_objects_using_webgl/index.html
@@ -1,10 +1,11 @@
 ---
 title: 3D-Objekte mit WebGL erstellen
-slug: Web/API/WebGL_API/Tutorial/3D-Objekte_mit_WebGL_erstellen
+slug: Web/API/WebGL_API/Tutorial/Creating_3D_objects_using_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Creating_3D_objects_using_WebGL
+original_slug: Web/API/WebGL_API/Tutorial/3D-Objekte_mit_WebGL_erstellen
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{PreviousNext("Web/API/WebGL_API/Tutorial/Objekte_mit_WebGL_animieren", "Web/API/WebGL_API/Tutorial/Texturen_in_WebGL_verwenden")}}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/einführung_in_webgl/index.html b/files/de/web/api/webgl_api/tutorial/getting_started_with_webgl/index.html
index 5906f95761..ad8f707ab6 100644
--- a/files/de/web/api/webgl_api/tutorial/einführung_in_webgl/index.html
+++ b/files/de/web/api/webgl_api/tutorial/getting_started_with_webgl/index.html
@@ -1,10 +1,11 @@
 ---
 title: Einführung in WebGL
-slug: Web/API/WebGL_API/Tutorial/Einführung_in_WebGL
+slug: Web/API/WebGL_API/Tutorial/Getting_started_with_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Getting_started_with_WebGL
+original_slug: Web/API/WebGL_API/Tutorial/Einführung_in_WebGL
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{Next("Web/API/WebGL_API/Tutorial/Hinzufügen_von_2D_Inhalten_in_einen_WebGL-Kontext")}}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/beleuchtung_in_webgl/index.html b/files/de/web/api/webgl_api/tutorial/lighting_in_webgl/index.html
index bd65b5bb40..715746822a 100644
--- a/files/de/web/api/webgl_api/tutorial/beleuchtung_in_webgl/index.html
+++ b/files/de/web/api/webgl_api/tutorial/lighting_in_webgl/index.html
@@ -1,10 +1,11 @@
 ---
 title: Beleuchtung in WebGL
-slug: Web/API/WebGL_API/Tutorial/Beleuchtung_in_WebGL
+slug: Web/API/WebGL_API/Tutorial/Lighting_in_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Lighting_in_WebGL
+original_slug: Web/API/WebGL_API/Tutorial/Beleuchtung_in_WebGL
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{PreviousNext("Web/API/WebGL_API/Tutorial/Texturen_in_WebGL_verwenden", "Web/API/WebGL_API/Tutorial/Animierte_Texturen_in_WebGL")}}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/farben_mittels_shader_in_einen_webgl-kontext_hinzufügen/index.html b/files/de/web/api/webgl_api/tutorial/using_shaders_to_apply_color_in_webgl/index.html
index 94068822d5..93a5d0181c 100644
--- a/files/de/web/api/webgl_api/tutorial/farben_mittels_shader_in_einen_webgl-kontext_hinzufügen/index.html
+++ b/files/de/web/api/webgl_api/tutorial/using_shaders_to_apply_color_in_webgl/index.html
@@ -1,11 +1,12 @@
 ---
 title: Farben mittels Shader in einen WebGL-Kontext hinzufügen
-slug: >-
-  Web/API/WebGL_API/Tutorial/Farben_mittels_Shader_in_einen_WebGL-Kontext_hinzufügen
+slug: Web/API/WebGL_API/Tutorial/Using_shaders_to_apply_color_in_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Using_shaders_to_apply_color_in_WebGL
+original_slug: >-
+  Web/API/WebGL_API/Tutorial/Farben_mittels_Shader_in_einen_WebGL-Kontext_hinzufügen
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{PreviousNext("Web/API/WebGL_API/Tutorial/Hinzufügen_von_2D_Inhalten_in_einen_WebGL-Kontext", "Web/API/WebGL_API/Tutorial/Objekte_mit_WebGL_animieren")}}</p>
 
diff --git a/files/de/web/api/webgl_api/tutorial/texturen_in_webgl_verwenden/index.html b/files/de/web/api/webgl_api/tutorial/using_textures_in_webgl/index.html
index eb59417694..af33f8e638 100644
--- a/files/de/web/api/webgl_api/tutorial/texturen_in_webgl_verwenden/index.html
+++ b/files/de/web/api/webgl_api/tutorial/using_textures_in_webgl/index.html
@@ -1,10 +1,11 @@
 ---
 title: Texturen in WebGL verwenden
-slug: Web/API/WebGL_API/Tutorial/Texturen_in_WebGL_verwenden
+slug: Web/API/WebGL_API/Tutorial/Using_textures_in_WebGL
 tags:
   - Tutorial
   - WebGL
 translation_of: Web/API/WebGL_API/Tutorial/Using_textures_in_WebGL
+original_slug: Web/API/WebGL_API/Tutorial/Texturen_in_WebGL_verwenden
 ---
 <p>{{WebGLSidebar("Tutorial")}} {{PreviousNext("Web/API/WebGL_API/Tutorial/3D-Objekte_mit_WebGL_erstellen", "Web/API/WebGL_API/Tutorial/Beleuchtung_in_WebGL")}}</p>
 
diff --git a/files/de/websockets/index.html b/files/de/web/api/websockets_api/index.html
index 1e3cefa7d9..d5c316bd7d 100644
--- a/files/de/websockets/index.html
+++ b/files/de/web/api/websockets_api/index.html
@@ -1,10 +1,11 @@
 ---
 title: WebSockets
-slug: WebSockets
+slug: Web/API/WebSockets_API
 tags:
   - Referenz
   - WebSockets
 translation_of: Web/API/WebSockets_API
+original_slug: WebSockets
 ---
 <p>WebSockets ist eine fortschrittliche Technologie welche es möglich macht eine interaktive Kommunikations-Session zwischen dem Browser des Benutzers und dem Server herzustellen. Mit dieser API können Sie Nachrichten zum Server senden und ereignisorientierte Antworten erhalten ohne beim Server die Antwort abzufragen.</p>
 
diff --git a/files/de/websockets/writing_websocket_servers/index.html b/files/de/web/api/websockets_api/writing_websocket_servers/index.html
index 031a2b832a..36f570e319 100644
--- a/files/de/websockets/writing_websocket_servers/index.html
+++ b/files/de/web/api/websockets_api/writing_websocket_servers/index.html
@@ -1,7 +1,8 @@
 ---
 title: Writing WebSocket servers
-slug: WebSockets/Writing_WebSocket_servers
+slug: Web/API/WebSockets_API/Writing_WebSocket_servers
 translation_of: Web/API/WebSockets_API/Writing_WebSocket_servers
+original_slug: WebSockets/Writing_WebSocket_servers
 ---
 <div>{{APIRef("Websockets API")}}</div>
 
diff --git a/files/de/web/events/domcontentloaded/index.html b/files/de/web/api/window/domcontentloaded_event/index.html
index d6841f774a..5c7b5c864f 100644
--- a/files/de/web/events/domcontentloaded/index.html
+++ b/files/de/web/api/window/domcontentloaded_event/index.html
@@ -1,11 +1,12 @@
 ---
 title: DOMContentLoaded
-slug: Web/Events/DOMContentLoaded
+slug: Web/API/Window/DOMContentLoaded_event
 tags:
   - Referenz
   - Web
   - events
 translation_of: Web/API/Window/DOMContentLoaded_event
+original_slug: Web/Events/DOMContentLoaded
 ---
 <p>Das <code>DOMContentLoaded</code>-Event wird ausgelöst, wenn das initiale HTML-Dokument vollständig geladen und geparst ist. Es wird dabei nicht auf Stylesheets, Bilder und Frames gewartet. Das <a href="/en-US/docs/Mozilla_event_reference/load"><code>load-Event</code></a> sollte im Gegensatz dazu nur benutzt werden um eine komplett geladene Seite zu erkennen. Es ist ein weit verbreiteter Fehler das <a href="/en-US/docs/Mozilla_event_reference/load"><code>load-Event</code></a> zu benutzen, obwohl <code>DOMContentLoaded</code> wesentlich besser geeignet wäre.</p>
 
diff --git a/files/de/web/events/load/index.html b/files/de/web/api/window/load_event/index.html
index 066a2bea25..6ff76661e3 100644
--- a/files/de/web/events/load/index.html
+++ b/files/de/web/api/window/load_event/index.html
@@ -1,7 +1,8 @@
 ---
 title: load
-slug: Web/Events/load
+slug: Web/API/Window/load_event
 translation_of: Web/API/Window/load_event
+original_slug: Web/Events/load
 ---
 <p>Das <code>load</code> Ereignis wird ausgelöst, sobald eine Ressource und die von ihr abhängigen Ressourcen das Laden beendet haben.</p>
 
diff --git a/files/de/web/api/windowbase64/btoa/index.html b/files/de/web/api/windoworworkerglobalscope/btoa/index.html
index 9d980c340a..271d206163 100644
--- a/files/de/web/api/windowbase64/btoa/index.html
+++ b/files/de/web/api/windoworworkerglobalscope/btoa/index.html
@@ -1,11 +1,12 @@
 ---
 title: WindowBase64.btoa()
-slug: Web/API/WindowBase64/btoa
+slug: Web/API/WindowOrWorkerGlobalScope/btoa
 tags:
   - API
   - Méthode
   - Referenz
 translation_of: Web/API/WindowOrWorkerGlobalScope/btoa
+original_slug: Web/API/WindowBase64/btoa
 ---
 <div>{{APIRef("HTML DOM")}}</div>
 
diff --git a/files/de/web/api/windowbase64/index.html b/files/de/web/api/windoworworkerglobalscope/index.html
index f51b72c102..5bd29bba94 100644
--- a/files/de/web/api/windowbase64/index.html
+++ b/files/de/web/api/windoworworkerglobalscope/index.html
@@ -1,6 +1,6 @@
 ---
 title: WindowBase64
-slug: Web/API/WindowBase64
+slug: Web/API/WindowOrWorkerGlobalScope
 tags:
   - API
   - HTML-DOM
@@ -10,6 +10,7 @@ tags:
   - WindowBase64
 translation_of: Web/API/WindowOrWorkerGlobalScope
 translation_of_original: Web/API/WindowBase64
+original_slug: Web/API/WindowBase64
 ---
 <p>{{APIRef("HTML DOM")}}</p>
 
diff --git a/files/de/web/api/windowtimers/settimeout/index.html b/files/de/web/api/windoworworkerglobalscope/settimeout/index.html
index 9f13870d78..58183f6619 100644
--- a/files/de/web/api/windowtimers/settimeout/index.html
+++ b/files/de/web/api/windoworworkerglobalscope/settimeout/index.html
@@ -1,7 +1,8 @@
 ---
 title: WindowTimers.setTimeout()
-slug: Web/API/WindowTimers/setTimeout
+slug: Web/API/WindowOrWorkerGlobalScope/setTimeout
 translation_of: Web/API/WindowOrWorkerGlobalScope/setTimeout
+original_slug: Web/API/WindowTimers/setTimeout
 ---
 <div>{{APIRef("HTML DOM")}}</div>
 
diff --git a/files/de/web/css/aural/index.html b/files/de/web/css/@media/aural/index.html
index 37d115443e..76d4191ffc 100644
--- a/files/de/web/css/aural/index.html
+++ b/files/de/web/css/@media/aural/index.html
@@ -1,10 +1,11 @@
 ---
 title: aural
-slug: Web/CSS/Aural
+slug: Web/CSS/@media/aural
 tags:
   - CSS
   - CSS Referenz
 translation_of: Web/CSS/@media/aural
+original_slug: Web/CSS/Aural
 ---
 <div>{{CSSRef}}{{obsolete_header("6.0")}}</div>
 
diff --git a/files/de/web/css/_colon_-webkit-autofill/index.html b/files/de/web/css/_colon_autofill/index.html
index 2030c723b3..97ef207558 100644
--- a/files/de/web/css/_colon_-webkit-autofill/index.html
+++ b/files/de/web/css/_colon_autofill/index.html
@@ -1,13 +1,14 @@
 ---
 title: ':-webkit-autofill'
-slug: 'Web/CSS/:-webkit-autofill'
+slug: Web/CSS/:autofill
 tags:
   - CSS
   - NeedsExample
   - Non-standard
   - Pseudoklasse
   - Referenz
-translation_of: 'Web/CSS/:-webkit-autofill'
+translation_of: Web/CSS/:-webkit-autofill
+original_slug: Web/CSS/:-webkit-autofill
 ---
 <div>{{CSSRef}}{{Non-standard_header}}</div>
 
diff --git a/files/de/web/css/_colon_-moz-placeholder/index.html b/files/de/web/css/_colon_placeholder-shown/index.html
index e4f65acf99..e465bf658c 100644
--- a/files/de/web/css/_colon_-moz-placeholder/index.html
+++ b/files/de/web/css/_colon_placeholder-shown/index.html
@@ -1,6 +1,6 @@
 ---
 title: ':-moz-placeholder'
-slug: 'Web/CSS/:-moz-placeholder'
+slug: Web/CSS/:placeholder-shown
 tags:
   - CSS
   - CSS Pseudoklasse
@@ -8,8 +8,9 @@ tags:
   - Non-standard
   - Platzhalter
   - Selektoren
-translation_of: 'Web/CSS/:placeholder-shown'
-translation_of_original: 'Web/CSS/:-moz-placeholder'
+translation_of: Web/CSS/:placeholder-shown
+translation_of_original: Web/CSS/:-moz-placeholder
+original_slug: Web/CSS/:-moz-placeholder
 ---
 <div class="note"><strong>Hinweis:</strong> Die :-moz-placeholder Pseudoklasse ist in Firefox 19 als veraltet markiert zugunsten des {{cssxref('::-moz-placeholder')}} Pseudoelements.</div>
 
diff --git a/files/de/web/css/_colon_-moz-ui-invalid/index.html b/files/de/web/css/_colon_user-invalid/index.html
index cc133a4d28..0623fecccc 100644
--- a/files/de/web/css/_colon_-moz-ui-invalid/index.html
+++ b/files/de/web/css/_colon_user-invalid/index.html
@@ -1,6 +1,6 @@
 ---
 title: ':-moz-ui-invalid'
-slug: 'Web/CSS/:-moz-ui-invalid'
+slug: Web/CSS/:user-invalid
 tags:
   - CSS
   - CSS Referenz
@@ -8,7 +8,8 @@ tags:
   - NeedsMobileBrowserCompatibility
   - Non-standard
   - Pseudoklasse
-translation_of: 'Web/CSS/:user-invalid'
+translation_of: Web/CSS/:user-invalid
+original_slug: Web/CSS/:-moz-ui-invalid
 ---
 <div>{{Non-standard_header}}{{CSSRef}}</div>
 
diff --git a/files/de/web/css/tatsächlicher_wert/index.html b/files/de/web/css/actual_value/index.html
index 5e77670cac..5d585975fb 100644
--- a/files/de/web/css/tatsächlicher_wert/index.html
+++ b/files/de/web/css/actual_value/index.html
@@ -1,7 +1,8 @@
 ---
 title: tatsächlicher Wert
-slug: Web/CSS/tatsächlicher_Wert
+slug: Web/CSS/actual_value
 translation_of: Web/CSS/actual_value
+original_slug: Web/CSS/tatsächlicher_Wert
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/angrenzende_geschwisterselektoren/index.html b/files/de/web/css/adjacent_sibling_combinator/index.html
index b5ff92dda2..31b5bcf71a 100644
--- a/files/de/web/css/angrenzende_geschwisterselektoren/index.html
+++ b/files/de/web/css/adjacent_sibling_combinator/index.html
@@ -1,6 +1,6 @@
 ---
 title: Angrenzende Geschwisterselektoren
-slug: Web/CSS/Angrenzende_Geschwisterselektoren
+slug: Web/CSS/Adjacent_sibling_combinator
 tags:
   - CSS
   - CSS Referenz
@@ -8,6 +8,7 @@ tags:
   - Selectors
   - Selektoren
 translation_of: Web/CSS/Adjacent_sibling_combinator
+original_slug: Web/CSS/Angrenzende_Geschwisterselektoren
 ---
 <p>{{CSSRef("Selectors")}}</p>
 
diff --git a/files/de/web/css/attributselektoren/index.html b/files/de/web/css/attribute_selectors/index.html
index a4b6449af3..88e6b26cb3 100644
--- a/files/de/web/css/attributselektoren/index.html
+++ b/files/de/web/css/attribute_selectors/index.html
@@ -1,12 +1,13 @@
 ---
 title: Attributselektoren
-slug: Web/CSS/Attributselektoren
+slug: Web/CSS/Attribute_selectors
 tags:
   - Anfänger
   - CSS
   - Reference
   - Selectors
 translation_of: Web/CSS/Attribute_selectors
+original_slug: Web/CSS/Attributselektoren
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/-moz-box-flex/index.html b/files/de/web/css/box-flex/index.html
index 8c54ffa75a..f59b883b61 100644
--- a/files/de/web/css/-moz-box-flex/index.html
+++ b/files/de/web/css/box-flex/index.html
@@ -1,6 +1,6 @@
 ---
 title: '-moz-box-flex'
-slug: Web/CSS/-moz-box-flex
+slug: Web/CSS/box-flex
 tags:
   - CSS
   - CSS Referenz
@@ -8,6 +8,7 @@ tags:
   - NeedsMobileBrowserCompatibility
   - Non-standard
 translation_of: Web/CSS/box-flex
+original_slug: Web/CSS/-moz-box-flex
 ---
 <div>{{CSSRef}}{{warning("Dies ist eine Eigenschaft zur Steuerung von Teilen des XUL Boxmodells. Sie stimmt weder mit den alten CSS Flexible Box Layout Module Entwürfen für <code>box-flex</code> (welche auf dieser Eigenschaft beruhen), noch dem Verhalten von <code>-webkit-box-flex</code> (welche auf diesen Entwürfen beruht) überein.")}}</div>
 
diff --git a/files/de/web/css/-moz-box-ordinal-group/index.html b/files/de/web/css/box-ordinal-group/index.html
index 5b99280453..45029e8141 100644
--- a/files/de/web/css/-moz-box-ordinal-group/index.html
+++ b/files/de/web/css/box-ordinal-group/index.html
@@ -1,14 +1,15 @@
 ---
 title: '-moz-box-ordinal-group'
-slug: Web/CSS/-moz-box-ordinal-group
+slug: Web/CSS/box-ordinal-group
 tags:
   - CSS
   - CSS Referenz
-  - 'CSS:Mozilla Erweiterungen'
+  - CSS:Mozilla Erweiterungen
   - Flexible Box
   - Non-standard
 translation_of: Web/CSS/box-ordinal-group
 translation_of_original: Web/CSS/-moz-box-ordinal-group
+original_slug: Web/CSS/-moz-box-ordinal-group
 ---
 <p>{{CSSRef}}<br>
  {{warning("Dies ist eine Eigenschaft des ursprünglichen CSS Flexible Box Entwurfs und wurde in neueren Entwürfen ersetzt.")}}</p>
diff --git a/files/de/web/css/-moz-box-pack/index.html b/files/de/web/css/box-pack/index.html
index 517c6fce72..735a7876f5 100644
--- a/files/de/web/css/-moz-box-pack/index.html
+++ b/files/de/web/css/box-pack/index.html
@@ -1,6 +1,6 @@
 ---
 title: '-moz-box-pack'
-slug: Web/CSS/-moz-box-pack
+slug: Web/CSS/box-pack
 tags:
   - CSS
   - CSS Eigenschaft
@@ -8,6 +8,7 @@ tags:
   - Layout
   - Non-standard
 translation_of: Web/CSS/box-pack
+original_slug: Web/CSS/-moz-box-pack
 ---
 <div>{{CSSRef}}{{warning("Dies ist eine Eigenschaft des ursprünglichen CSS Flexible Box Layout Moduls, welches durch einen neuen Standard ersetzt wurde.")}}</div>
 
diff --git a/files/de/web/css/kindselektoren/index.html b/files/de/web/css/child_combinator/index.html
index 2e351964ed..8e9fb3a50e 100644
--- a/files/de/web/css/kindselektoren/index.html
+++ b/files/de/web/css/child_combinator/index.html
@@ -1,6 +1,6 @@
 ---
 title: Kindselektoren
-slug: Web/CSS/Kindselektoren
+slug: Web/CSS/Child_combinator
 tags:
   - CSS
   - CSS Referenz
@@ -8,6 +8,7 @@ tags:
   - NeedsMobileBrowserCompatibility
   - Selektoren
 translation_of: Web/CSS/Child_combinator
+original_slug: Web/CSS/Kindselektoren
 ---
 <div>{{CSSRef("Selectors")}}</div>
 
diff --git a/files/de/web/css/klassenselektoren/index.html b/files/de/web/css/class_selectors/index.html
index eafd714a05..1fe5750855 100644
--- a/files/de/web/css/klassenselektoren/index.html
+++ b/files/de/web/css/class_selectors/index.html
@@ -1,12 +1,13 @@
 ---
 title: Klassenselektoren
-slug: Web/CSS/Klassenselektoren
+slug: Web/CSS/Class_selectors
 tags:
   - CSS
   - CSS Referenz
   - Einsteiger
   - Selektoren
 translation_of: Web/CSS/Class_selectors
+original_slug: Web/CSS/Klassenselektoren
 ---
 <div>{{CSSRef("Selectors")}}</div>
 
diff --git a/files/de/web/css/farben/index.html b/files/de/web/css/color_value/index.html
index 9e0baf0720..8ff92aa0f8 100644
--- a/files/de/web/css/farben/index.html
+++ b/files/de/web/css/color_value/index.html
@@ -1,6 +1,6 @@
 ---
 title: <color>
-slug: Web/CSS/Farben
+slug: Web/CSS/color_value
 tags:
   - CSS
   - CSS Datentyp
@@ -10,6 +10,7 @@ tags:
   - Referenz
   - Web
 translation_of: Web/CSS/color_value
+original_slug: Web/CSS/Farben
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_compositing_and_blending/index.html b/files/de/web/css/compositing_and_blending/index.html
index a4fcc2636e..a850ad9233 100644
--- a/files/de/web/css/css_compositing_and_blending/index.html
+++ b/files/de/web/css/compositing_and_blending/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS Compositing and Blending
-slug: Web/CSS/CSS_Compositing_and_Blending
+slug: Web/CSS/Compositing_and_Blending
 tags:
   - CSS
   - CSS Compositing and Blending
@@ -8,6 +8,7 @@ tags:
   - Übersicht
 translation_of: Web/CSS/Compositing_and_Blending
 translation_of_original: Web/CSS/CSS_Compositing_and_Blending
+original_slug: Web/CSS/CSS_Compositing_and_Blending
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/berechneter_wert/index.html b/files/de/web/css/computed_value/index.html
index d98a8be023..34f1f530f4 100644
--- a/files/de/web/css/berechneter_wert/index.html
+++ b/files/de/web/css/computed_value/index.html
@@ -1,11 +1,12 @@
 ---
 title: Berechneter Wert
-slug: Web/CSS/berechneter_Wert
+slug: Web/CSS/computed_value
 tags:
   - CSS
   - Guide
   - Web
 translation_of: Web/CSS/computed_value
+original_slug: Web/CSS/berechneter_Wert
 ---
 <div>
  {{cssref}}</div>
diff --git a/files/de/web/css/css_animations/css_animationen_nutzen/index.html b/files/de/web/css/css_animations/using_css_animations/index.html
index ea0dc4e7de..fe1dde65d6 100644
--- a/files/de/web/css/css_animations/css_animationen_nutzen/index.html
+++ b/files/de/web/css/css_animations/using_css_animations/index.html
@@ -1,7 +1,8 @@
 ---
 title: CSS Animationen nutzen
-slug: Web/CSS/CSS_Animations/CSS_Animationen_nutzen
+slug: Web/CSS/CSS_Animations/Using_CSS_animations
 translation_of: Web/CSS/CSS_Animations/Using_CSS_animations
+original_slug: Web/CSS/CSS_Animations/CSS_Animationen_nutzen
 ---
 <p>{{SeeCompatTable}}{{CSSRef}}</p>
 
diff --git a/files/de/web/css/css_boxmodell/box-shadow_generator/index.html b/files/de/web/css/css_background_and_borders/box-shadow_generator/index.html
index b087898d03..0737e34004 100644
--- a/files/de/web/css/css_boxmodell/box-shadow_generator/index.html
+++ b/files/de/web/css/css_background_and_borders/box-shadow_generator/index.html
@@ -1,11 +1,12 @@
 ---
 title: Box-shadow Generator
-slug: Web/CSS/CSS_Boxmodell/Box-shadow_generator
+slug: Web/CSS/CSS_Background_and_Borders/Box-shadow_generator
 tags:
   - CSS3
   - Werkzeuge
   - box-shadow
 translation_of: Web/CSS/CSS_Background_and_Borders/Box-shadow_generator
+original_slug: Web/CSS/CSS_Boxmodell/Box-shadow_generator
 ---
 <p>Dieses Werkzeug erlaubt es, CSS {{cssxref("box-shadow")}} Effekte zu erstellen, um Schlagschatteneffekte zu CSS Objekten hinzuzufügen.</p>
 
diff --git a/files/de/web/css/css_background_and_borders/index.html b/files/de/web/css/css_backgrounds_and_borders/index.html
index 59c2117194..3c843d9d45 100644
--- a/files/de/web/css/css_background_and_borders/index.html
+++ b/files/de/web/css/css_backgrounds_and_borders/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS Background and Borders
-slug: Web/CSS/CSS_Background_and_Borders
+slug: Web/CSS/CSS_Backgrounds_and_Borders
 tags:
   - CSS
   - CSS Backgrounds and Borders
@@ -10,6 +10,7 @@ tags:
   - TopicStub
 translation_of: Web/CSS/CSS_Backgrounds_and_Borders
 translation_of_original: Web/CSS/CSS_Background_and_Borders
+original_slug: Web/CSS/CSS_Background_and_Borders
 ---
 <p>{{CSSRef}}</p>
 
diff --git a/files/de/web/guide/css/scaling_background_images/index.html b/files/de/web/css/css_backgrounds_and_borders/resizing_background_images/index.html
index abd1e8f200..463367f7ef 100644
--- a/files/de/web/guide/css/scaling_background_images/index.html
+++ b/files/de/web/css/css_backgrounds_and_borders/resizing_background_images/index.html
@@ -1,11 +1,12 @@
 ---
 title: Hintergrundbilder skalieren
-slug: Web/Guide/CSS/Scaling_background_images
+slug: Web/CSS/CSS_Backgrounds_and_Borders/Resizing_background_images
 tags:
   - CSS Hintergrundbild
   - Skalierung Hintergrundbild
 translation_of: Web/CSS/CSS_Backgrounds_and_Borders/Resizing_background_images
 translation_of_original: Web/CSS/CSS_Background_and_Borders/Scaling_background_images
+original_slug: Web/Guide/CSS/Scaling_background_images
 ---
 <p><span class="seoSummary">Die {{ cssxref("background-size") }} CSS Eigenschaft ermöglicht es, die Größe von Hintergrundbildern einzustellen, anstatt das voreingestellte Verhalten, das Bild auf die volle Größe zu kacheln, zu verwenden.</span>Man kann das Bild nach Wunsch nach oben oder unten skalieren.</p>
 
diff --git a/files/de/web/css/css_background_and_borders/mehrere_hintergründe_in_css_verwenden/index.html b/files/de/web/css/css_backgrounds_and_borders/using_multiple_backgrounds/index.html
index 9b717083f8..344c737807 100644
--- a/files/de/web/css/css_background_and_borders/mehrere_hintergründe_in_css_verwenden/index.html
+++ b/files/de/web/css/css_backgrounds_and_borders/using_multiple_backgrounds/index.html
@@ -1,6 +1,6 @@
 ---
 title: Mehrere Hintergründe in CSS verwenden
-slug: Web/CSS/CSS_Background_and_Borders/Mehrere_Hintergründe_in_CSS_verwenden
+slug: Web/CSS/CSS_Backgrounds_and_Borders/Using_multiple_backgrounds
 tags:
   - Beispiel
   - CSS
@@ -9,6 +9,7 @@ tags:
   - Intermediate
 translation_of: Web/CSS/CSS_Backgrounds_and_Borders/Using_multiple_backgrounds
 translation_of_original: Web/CSS/CSS_Background_and_Borders/Using_CSS_multiple_backgrounds
+original_slug: Web/CSS/CSS_Background_and_Borders/Mehrere_Hintergründe_in_CSS_verwenden
 ---
 <p>{{CSSRef}}</p>
 
diff --git a/files/de/web/css/css_boxmodell/index.html b/files/de/web/css/css_box_model/index.html
index 37440c9523..d4d7e21ccf 100644
--- a/files/de/web/css/css_boxmodell/index.html
+++ b/files/de/web/css/css_box_model/index.html
@@ -1,12 +1,13 @@
 ---
 title: CSS Boxmodell
-slug: Web/CSS/CSS_Boxmodell
+slug: Web/CSS/CSS_Box_Model
 tags:
   - CSS
   - CSS Boxmodell
   - CSS Referenz
   - Übersicht
 translation_of: Web/CSS/CSS_Box_Model
+original_slug: Web/CSS/CSS_Boxmodell
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_boxmodell/einführung_in_das_css_boxmodell/index.html b/files/de/web/css/css_box_model/introduction_to_the_css_box_model/index.html
index 1bf796b36b..920c4a34ae 100644
--- a/files/de/web/css/css_boxmodell/einführung_in_das_css_boxmodell/index.html
+++ b/files/de/web/css/css_box_model/introduction_to_the_css_box_model/index.html
@@ -1,10 +1,11 @@
 ---
 title: Boxmodell
-slug: Web/CSS/CSS_Boxmodell/Einführung_in_das_CSS_Boxmodell
+slug: Web/CSS/CSS_Box_Model/Introduction_to_the_CSS_box_model
 tags:
   - CSS
   - CSS Referenz
 translation_of: Web/CSS/CSS_Box_Model/Introduction_to_the_CSS_box_model
+original_slug: Web/CSS/CSS_Boxmodell/Einführung_in_das_CSS_Boxmodell
 ---
 <p>{{ CSSRef() }}</p>
 
diff --git a/files/de/web/css/css_boxmodell/zusammenfallen_von_außenabständen_meistern/index.html b/files/de/web/css/css_box_model/mastering_margin_collapsing/index.html
index edf1fa050c..f4deff178f 100644
--- a/files/de/web/css/css_boxmodell/zusammenfallen_von_außenabständen_meistern/index.html
+++ b/files/de/web/css/css_box_model/mastering_margin_collapsing/index.html
@@ -1,11 +1,12 @@
 ---
 title: Zusammenfallen von Außenabständen meistern
-slug: Web/CSS/CSS_Boxmodell/Zusammenfallen_von_Außenabständen_meistern
+slug: Web/CSS/CSS_Box_Model/Mastering_margin_collapsing
 tags:
   - CSS
   - CSS Boxmodell
   - Referenz
 translation_of: Web/CSS/CSS_Box_Model/Mastering_margin_collapsing
+original_slug: Web/CSS/CSS_Boxmodell/Zusammenfallen_von_Außenabständen_meistern
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_colors/index.html b/files/de/web/css/css_color/index.html
index a85506c9de..1caee78d55 100644
--- a/files/de/web/css/css_colors/index.html
+++ b/files/de/web/css/css_color/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS Farben
-slug: Web/CSS/CSS_Colors
+slug: Web/CSS/CSS_Color
 tags:
   - CSS
   - CSS Farben
@@ -8,6 +8,7 @@ tags:
   - Übersicht
 translation_of: Web/CSS/CSS_Color
 translation_of_original: Web/CSS/CSS_Colors
+original_slug: Web/CSS/CSS_Colors
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_colors/farbauswahl_werkzeug/index.html b/files/de/web/css/css_colors/color_picker_tool/index.html
index 3f822f9f73..ae206cc90a 100644
--- a/files/de/web/css/css_colors/farbauswahl_werkzeug/index.html
+++ b/files/de/web/css/css_colors/color_picker_tool/index.html
@@ -1,6 +1,6 @@
 ---
 title: Farbauswahl-Werkzeug
-slug: Web/CSS/CSS_Colors/farbauswahl_werkzeug
+slug: Web/CSS/CSS_Colors/Color_picker_tool
 tags:
   - CSS
   - Farbauswahl
@@ -9,6 +9,7 @@ tags:
   - Pipette
   - Werkzeug
 translation_of: Web/CSS/CSS_Colors/Color_picker_tool
+original_slug: Web/CSS/CSS_Colors/farbauswahl_werkzeug
 ---
 <div style="display: none;">
 <h2 id="ColorPicker_Tool" name="ColorPicker_Tool">ColorPicker tool</h2>
diff --git a/files/de/css3_columns/index.html b/files/de/web/css/css_columns/using_multi-column_layouts/index.html
index 8ca450b7c2..1156986d69 100644
--- a/files/de/css3_columns/index.html
+++ b/files/de/web/css/css_columns/using_multi-column_layouts/index.html
@@ -1,10 +1,11 @@
 ---
 title: CSS3 Spalten
-slug: CSS3_Columns
+slug: Web/CSS/CSS_Columns/Using_multi-column_layouts
 tags:
   - CSS
   - CSS3
 translation_of: Web/CSS/CSS_Columns/Using_multi-column_layouts
+original_slug: CSS3_Columns
 ---
 <p>Viele Benutzer haben Schwierigkeiten Texte zu lesen, wenn die Zeilen sehr lang sind. Es dauert dann zu lange für das Auge vom Ende der Zeile zum Anfang einer Neuen zu springen. Sie verrutschen unter Umständen in der Zeile und der Lesefluss wird unterbrochen. Um dennoch das Maximum an Bildfläche von großen Bildschirmen zu nutzen, sollten Autoren eine begrenzte Spaltenbreite verwenden, die den Text dann nebeneinander platziert (vergleichbar mit dem Spaltensatz in Zeitungen). Unglücklicherweise ist es mittels HTML und CSS 2.1 nicht möglich Spaltenumbrüche festzulegen, ohne dass diese an festen Positionen gebunden sind. Das erlaubte Markup im Text muss stark eingeschränkt werden oder die Spalten müssen durch die Verwendung von Scripts erstellt werden.</p>
 <p>Die <a class="external" href="http://www.w3.org/TR/css3-multicol/">CSS3 Multi-column Spezifikation</a> schlägt einige neue CSS Eigenschaften vor, die diese Funktionen mittels CSS ermöglichen. In Firefox 1.5 und später wurde ein Teil dieser Eigenschaften implementiert, um das Verhalten, so wie es in der Spezifikation beschrieben ist (mit einer Ausnahme; siehe unten), zu realisieren.</p>
diff --git a/files/de/web/css/css_flexible_box_layout/grundlegende_konzepte_der_flexbox/index.html b/files/de/web/css/css_flexible_box_layout/basic_concepts_of_flexbox/index.html
index 81b1db9c4b..d03a42c58a 100644
--- a/files/de/web/css/css_flexible_box_layout/grundlegende_konzepte_der_flexbox/index.html
+++ b/files/de/web/css/css_flexible_box_layout/basic_concepts_of_flexbox/index.html
@@ -1,7 +1,8 @@
 ---
 title: Grundlegende Konzepte der Flexbox
-slug: Web/CSS/CSS_Flexible_Box_Layout/Grundlegende_Konzepte_der_Flexbox
+slug: Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
 translation_of: Web/CSS/CSS_Flexible_Box_Layout/Basic_Concepts_of_Flexbox
+original_slug: Web/CSS/CSS_Flexible_Box_Layout/Grundlegende_Konzepte_der_Flexbox
 ---
 <div> </div>
 
diff --git a/files/de/web/css/css_flexible_box_layout/flex_elemente_sortieren/index.html b/files/de/web/css/css_flexible_box_layout/ordering_flex_items/index.html
index 86354499d2..c008d43cdd 100644
--- a/files/de/web/css/css_flexible_box_layout/flex_elemente_sortieren/index.html
+++ b/files/de/web/css/css_flexible_box_layout/ordering_flex_items/index.html
@@ -1,6 +1,6 @@
 ---
 title: Flex Elemente Sortieren
-slug: Web/CSS/CSS_Flexible_Box_Layout/Flex_Elemente_Sortieren
+slug: Web/CSS/CSS_Flexible_Box_Layout/Ordering_Flex_Items
 tags:
   - Barrierefreiheit
   - CSS
@@ -10,6 +10,7 @@ tags:
   - flexbox
   - umgekehrt
 translation_of: Web/CSS/CSS_Flexible_Box_Layout/Ordering_Flex_Items
+original_slug: Web/CSS/CSS_Flexible_Box_Layout/Flex_Elemente_Sortieren
 ---
 <p>{{CSSRef}}</p>
 
diff --git a/files/de/farbverläufe_in_css/index.html b/files/de/web/css/css_images/using_css_gradients/index.html
index e5ed267991..2b0cf823aa 100644
--- a/files/de/farbverläufe_in_css/index.html
+++ b/files/de/web/css/css_images/using_css_gradients/index.html
@@ -1,6 +1,6 @@
 ---
 title: Verwendung von CSS Farbverläufen
-slug: Farbverläufe_in_CSS
+slug: Web/CSS/CSS_Images/Using_CSS_gradients
 tags:
   - Beispiel
   - CSS
@@ -11,6 +11,7 @@ tags:
   - Web
   - erweitert
 translation_of: Web/CSS/CSS_Images/Using_CSS_gradients
+original_slug: Farbverläufe_in_CSS
 ---
 <p><span class="seoSummary"><strong>CSS Farbverläufe</strong> sind neue Typen von {{cssxref("&lt;image&gt;")}}, die durch das <a href="/de/docs/CSS/CSS3" title="CSS3">CSS3</a> Image Module hinzugefügt wurden. Die Verwendung von CSS Farbverläufen erlaubt es, weiche Übergänge zwischen zwei oder mehr angegebenen Farben anzuzeigen.</span> Dies ermöglicht es, Bilder für diese Effekte zu vermeiden, was Downloadzeit und Bandbreitennutzung verringert. Darüber hinaus sehen Objekte besser aus, wenn sie herangezoomt werden, da der Farbverlauf durch den Browser erzeugt wird, sodass das Layout viel flexibler gestaltet werden kann.</p>
 
diff --git a/files/de/web/css/css_lists_and_counters/konsistente_listeneinrückung/index.html b/files/de/web/css/css_lists_and_counters/consistent_list_indentation/index.html
index b2309f5e82..673c3e0bbe 100644
--- a/files/de/web/css/css_lists_and_counters/konsistente_listeneinrückung/index.html
+++ b/files/de/web/css/css_lists_and_counters/consistent_list_indentation/index.html
@@ -1,12 +1,13 @@
 ---
 title: Konsistente Listeneinrückung
-slug: Web/CSS/CSS_Lists_and_Counters/Konsistente_Listeneinrückung
+slug: Web/CSS/CSS_Lists_and_Counters/Consistent_list_indentation
 tags:
   - Anleitung
   - CSS
   - Intermediate
   - NeedsUpdate
 translation_of: Web/CSS/CSS_Lists_and_Counters/Consistent_list_indentation
+original_slug: Web/CSS/CSS_Lists_and_Counters/Konsistente_Listeneinrückung
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_lists_and_counters/css_zähler_verwenden/index.html b/files/de/web/css/css_lists_and_counters/using_css_counters/index.html
index 252f90b530..1539b9490e 100644
--- a/files/de/web/css/css_lists_and_counters/css_zähler_verwenden/index.html
+++ b/files/de/web/css/css_lists_and_counters/using_css_counters/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS Zähler verwenden
-slug: Web/CSS/CSS_Lists_and_Counters/CSS_Zähler_verwenden
+slug: Web/CSS/CSS_Lists_and_Counters/Using_CSS_counters
 tags:
   - Anleitung
   - CSS
@@ -11,6 +11,7 @@ tags:
   - Referenz
   - Web
 translation_of: Web/CSS/CSS_Lists_and_Counters/Using_CSS_counters
+original_slug: Web/CSS/CSS_Lists_and_Counters/CSS_Zähler_verwenden
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_masken/index.html b/files/de/web/css/css_masking/index.html
index 74001bd680..2931f0ca07 100644
--- a/files/de/web/css/css_masken/index.html
+++ b/files/de/web/css/css_masking/index.html
@@ -1,12 +1,13 @@
 ---
 title: CSS Masken
-slug: Web/CSS/CSS_Masken
+slug: Web/CSS/CSS_Masking
 tags:
   - CSS
   - CSS Masken
   - CSS Referenz
   - Übersicht
 translation_of: Web/CSS/CSS_Masking
+original_slug: Web/CSS/CSS_Masken
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/motion_path/index.html b/files/de/web/css/css_motion_path/index.html
index 5c09de0a90..a3ed7826d1 100644
--- a/files/de/web/css/motion_path/index.html
+++ b/files/de/web/css/css_motion_path/index.html
@@ -1,6 +1,6 @@
 ---
 title: Bewegungspfad
-slug: Web/CSS/Motion_Path
+slug: Web/CSS/CSS_Motion_Path
 tags:
   - Bewegungspfad
   - CSS
@@ -8,6 +8,7 @@ tags:
   - Referenz
   - Übersicht
 translation_of: Web/CSS/CSS_Motion_Path
+original_slug: Web/CSS/Motion_Path
 ---
 <div>{{CSSRef}}{{SeeCompatTable}}</div>
 
diff --git a/files/de/web/css/css_namensräume/index.html b/files/de/web/css/css_namespaces/index.html
index e9d0879cb2..99b6e1faf5 100644
--- a/files/de/web/css/css_namensräume/index.html
+++ b/files/de/web/css/css_namespaces/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS Namensräume
-slug: Web/CSS/CSS_Namensräume
+slug: Web/CSS/CSS_Namespaces
 tags:
   - CSS
   - CSS Namensräume
@@ -8,6 +8,7 @@ tags:
   - Web
   - Übersicht
 translation_of: Web/CSS/CSS_Namespaces
+original_slug: Web/CSS/CSS_Namensräume
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_textdekoration/index.html b/files/de/web/css/css_text_decoration/index.html
index 389d7f6a5e..0d4824207e 100644
--- a/files/de/web/css/css_textdekoration/index.html
+++ b/files/de/web/css/css_text_decoration/index.html
@@ -1,12 +1,13 @@
 ---
 title: CSS Textdekoration
-slug: Web/CSS/CSS_Textdekoration
+slug: Web/CSS/CSS_Text_Decoration
 tags:
   - CSS
   - CSS Referenz
   - CSS Textdekoration
   - Übersicht
 translation_of: Web/CSS/CSS_Text_Decoration
+original_slug: Web/CSS/CSS_Textdekoration
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_transforms/css_transformationen_verwenden/index.html b/files/de/web/css/css_transforms/using_css_transforms/index.html
index 0d761f544f..aaced7d54b 100644
--- a/files/de/web/css/css_transforms/css_transformationen_verwenden/index.html
+++ b/files/de/web/css/css_transforms/using_css_transforms/index.html
@@ -1,6 +1,6 @@
 ---
 title: CSS Transformationen verwenden
-slug: Web/CSS/CSS_Transforms/CSS_Transformationen_verwenden
+slug: Web/CSS/CSS_Transforms/Using_CSS_transforms
 tags:
   - CSS
   - CSS Transformationen
@@ -8,6 +8,7 @@ tags:
   - Fortgeschritten
   - Guide
 translation_of: Web/CSS/CSS_Transforms/Using_CSS_transforms
+original_slug: Web/CSS/CSS_Transforms/CSS_Transformationen_verwenden
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_typen/index.html b/files/de/web/css/css_types/index.html
index bb08a42cd4..c472530e05 100644
--- a/files/de/web/css/css_typen/index.html
+++ b/files/de/web/css/css_types/index.html
@@ -1,7 +1,8 @@
 ---
 title: CSS-Basis-Datentypen
-slug: Web/CSS/CSS_Typen
+slug: Web/CSS/CSS_Types
 translation_of: Web/CSS/CSS_Types
+original_slug: Web/CSS/CSS_Typen
 ---
 <div>{{CssRef}}</div>
 
diff --git a/files/de/web/css/grid-gap/index.html b/files/de/web/css/gap/index.html
index b6953c3258..1a7d54bbd4 100644
--- a/files/de/web/css/grid-gap/index.html
+++ b/files/de/web/css/gap/index.html
@@ -1,8 +1,9 @@
 ---
 title: grid-gap
-slug: Web/CSS/grid-gap
+slug: Web/CSS/gap
 translation_of: Web/CSS/gap
 translation_of_original: Web/CSS/grid-gap
+original_slug: Web/CSS/grid-gap
 ---
 <p><strong><code>grid-gap</code></strong>  ist die <a href="/en-US/docs/Web/CSS/Shorthand_properties">shorthand</a> CSS Eigenschaft für  {{cssxref("grid-row-gap")}} und {{cssxref("grid-column-gap")}} , welche die Spalten (gutter) zwischen Rasterreihen und Rasterspalten festlegt.</p>
 
diff --git a/files/de/web/css/id-selektoren/index.html b/files/de/web/css/id_selectors/index.html
index 921e391d80..f02e0d59f8 100644
--- a/files/de/web/css/id-selektoren/index.html
+++ b/files/de/web/css/id_selectors/index.html
@@ -1,12 +1,13 @@
 ---
 title: ID-Selektoren
-slug: Web/CSS/ID-Selektoren
+slug: Web/CSS/ID_selectors
 tags:
   - CSS
   - CSS Referenz
   - Einsteiger
   - Selektoren
 translation_of: Web/CSS/ID_selectors
+original_slug: Web/CSS/ID-Selektoren
 ---
 <div>{{CSSRef("Selectors")}}</div>
 
diff --git a/files/de/web/css/vererbung/index.html b/files/de/web/css/inheritance/index.html
index f5d4a097b2..f50bc1eef2 100644
--- a/files/de/web/css/vererbung/index.html
+++ b/files/de/web/css/inheritance/index.html
@@ -1,11 +1,12 @@
 ---
 title: Vererbung
-slug: Web/CSS/Vererbung
+slug: Web/CSS/inheritance
 tags:
   - CSS
   - Guide
   - Web
 translation_of: Web/CSS/inheritance
+original_slug: Web/CSS/Vererbung
 ---
 <h2 id="Übersicht">Übersicht</h2>
 <p>Die Übersicht jeder <a href="/de/docs/Web/CSS/CSS_Referenz" title="en/CSS_Reference">CSS Eigenschaft Definition</a> gibt an, ob jene Eigenschaft standardmäßig vererbt ist ("Vererbt: Ja") oder nicht ("Vererbt: Nein"). Dies steuert, was passiert, falls kein Wert für eine Eigenschaft eines Elements angegeben wird.</p>
diff --git a/files/de/web/css/initialwert/index.html b/files/de/web/css/initial_value/index.html
index 7d5e7e18dd..99cb2c0974 100644
--- a/files/de/web/css/initialwert/index.html
+++ b/files/de/web/css/initial_value/index.html
@@ -1,11 +1,12 @@
 ---
 title: Initialwert
-slug: Web/CSS/Initialwert
+slug: Web/CSS/initial_value
 tags:
   - CSS
   - Guide
   - Web
 translation_of: Web/CSS/initial_value
+original_slug: Web/CSS/Initialwert
 ---
 <h2 id="Übersicht">Übersicht</h2>
 <p>Der <strong>Initialwert</strong>, der in der Übersicht der Definition <a href="/de/docs/Web/CSS/CSS_Referenz" title="en/CSS_Reference">jeder CSS Eigenschaft</a> steht, hat eine unterschiedliche Bedeutung für <a href="/de/docs/Web/CSS/Vererbung" title="en/CSS/inheritance">vererbte und nicht vererbte Eigenschaften</a>.</p>
diff --git a/files/de/web/css/-webkit-mask-origin/index.html b/files/de/web/css/mask-origin/index.html
index 7cba7cd7fc..9f30da1fbc 100644
--- a/files/de/web/css/-webkit-mask-origin/index.html
+++ b/files/de/web/css/mask-origin/index.html
@@ -1,11 +1,12 @@
 ---
 title: '-webkit-mask-origin'
-slug: Web/CSS/-webkit-mask-origin
+slug: Web/CSS/mask-origin
 tags:
   - CSS
   - Referenz
 translation_of: Web/CSS/mask-origin
 translation_of_original: Web/CSS/-webkit-mask-origin
+original_slug: Web/CSS/-webkit-mask-origin
 ---
 <div>{{CSSRef}}{{Non-standard_header}}</div>
 
diff --git a/files/de/web/css/-webkit-mask-repeat/index.html b/files/de/web/css/mask-repeat/index.html
index 3ba0646adb..27d579e963 100644
--- a/files/de/web/css/-webkit-mask-repeat/index.html
+++ b/files/de/web/css/mask-repeat/index.html
@@ -1,10 +1,11 @@
 ---
 title: '-webkit-mask-repeat'
-slug: Web/CSS/-webkit-mask-repeat
+slug: Web/CSS/mask-repeat
 tags:
   - CSS
 translation_of: Web/CSS/mask-repeat
 translation_of_original: Web/CSS/-webkit-mask-repeat
+original_slug: Web/CSS/-webkit-mask-repeat
 ---
 <div>{{CSSRef}}{{Non-standard_header}}</div>
 
diff --git a/files/de/web/css/word-wrap/index.html b/files/de/web/css/overflow-wrap/index.html
index fd803452d4..e271657aa3 100644
--- a/files/de/web/css/word-wrap/index.html
+++ b/files/de/web/css/overflow-wrap/index.html
@@ -1,12 +1,13 @@
 ---
 title: word-wrap
-slug: Web/CSS/word-wrap
+slug: Web/CSS/overflow-wrap
 tags:
   - CSS
   - CSS Eigenschaft
   - NeedsLiveSample
   - Referenz
 translation_of: Web/CSS/overflow-wrap
+original_slug: Web/CSS/word-wrap
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/css_referenz/index.html b/files/de/web/css/reference/index.html
index 89a0c83e25..2cc9d22d9c 100644
--- a/files/de/web/css/css_referenz/index.html
+++ b/files/de/web/css/reference/index.html
@@ -1,10 +1,11 @@
 ---
 title: CSS Referenz
-slug: Web/CSS/CSS_Referenz
+slug: Web/CSS/Reference
 tags:
   - CSS
   - CSS Referenz
 translation_of: Web/CSS/Reference
+original_slug: Web/CSS/CSS_Referenz
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/ersetztes_element/index.html b/files/de/web/css/replaced_element/index.html
index c75a4aec95..1066775ba3 100644
--- a/files/de/web/css/ersetztes_element/index.html
+++ b/files/de/web/css/replaced_element/index.html
@@ -1,10 +1,11 @@
 ---
 title: Ersetztes Element
-slug: Web/CSS/ersetztes_Element
+slug: Web/CSS/Replaced_element
 tags:
   - CSS
   - CSS Referenz
 translation_of: Web/CSS/Replaced_element
+original_slug: Web/CSS/ersetztes_Element
 ---
 <div>{{CSSRef}}</div>
 
diff --git a/files/de/web/css/kurzformat_eigenschaft/index.html b/files/de/web/css/shorthand_properties/index.html
index 1923d5efd5..f5fbfabc44 100644
--- a/files/de/web/css/kurzformat_eigenschaft/index.html
+++ b/files/de/web/css/shorthand_properties/index.html
@@ -1,7 +1,8 @@
 ---
 title: Kurzformat Eigenschaft
-slug: Web/CSS/Kurzformat_Eigenschaft
+slug: Web/CSS/Shorthand_properties
 translation_of: Web/CSS/Shorthand_properties
+original_slug: Web/CSS/Kurzformat_Eigenschaft
 ---
 <div>{{cssref}}</div>
 
diff --git a/files/de/web/css/spezifität/index.html b/files/de/web/css/specificity/index.html
index e8a0e22302..775f8a8c68 100644
--- a/files/de/web/css/spezifität/index.html
+++ b/files/de/web/css/specificity/index.html
@@ -1,12 +1,13 @@
 ---
 title: Spezifität
-slug: Web/CSS/Spezifität
+slug: Web/CSS/Specificity
 tags:
   - Beispiel
   - CSS
   - Guide
   - Web
 translation_of: Web/CSS/Specificity
+original_slug: Web/CSS/Spezifität
 ---
 <div>{{cssref}}</div>
 
diff --git a/files/de/web/css/url/index.html b/files/de/web/css/url()/index.html
index dd120e3800..5d021a2226 100644
--- a/files/de/web/css/url/index.html
+++ b/files/de/web/css/url()/index.html
@@ -1,6 +1,6 @@
 ---
 title: <url>
-slug: Web/CSS/url
+slug: Web/CSS/url()
 tags:
   - CSS
   - Layout
@@ -9,6 +9,7 @@ tags:
   - URL
 translation_of: Web/CSS/url()
 translation_of_original: Web/CSS/url
+original_slug: Web/CSS/url
 ---
 <div>{{ CssRef() }}</div>
 
diff --git a/files/de/web/css/-moz-user-modify/index.html b/files/de/web/css/user-modify/index.html
index d1ec135fa0..1d77881c0a 100644
--- a/files/de/web/css/-moz-user-modify/index.html
+++ b/files/de/web/css/user-modify/index.html
@@ -1,12 +1,13 @@
 ---
 title: '-moz-user-modify'
-slug: Web/CSS/-moz-user-modify
+slug: Web/CSS/user-modify
 tags:
   - CSS
   - CSS Referenz
   - NeedsMobileBrowserCompatibility
   - Non-standard
 translation_of: Web/CSS/user-modify
+original_slug: Web/CSS/-moz-user-modify
 ---
 <div>{{Non-standard_header}}{{CSSRef}}</div>
 
diff --git a/files/de/web/css/-moz-user-select/index.html b/files/de/web/css/user-select/index.html
index aefa619439..daba4fbf7c 100644
--- a/files/de/web/css/-moz-user-select/index.html
+++ b/files/de/web/css/user-select/index.html
@@ -1,11 +1,12 @@
 ---
 title: '-moz-user-select'
-slug: Web/CSS/-moz-user-select
+slug: Web/CSS/user-select
 tags:
   - CSS
   - CSS Referenz
-  - 'CSS:Mozilla Erweiterungen'
+  - CSS:Mozilla Erweiterungen
 translation_of: Web/CSS/user-select
+original_slug: Web/CSS/-moz-user-select
 ---
 <p>{{ CSSRef() }}</p>
 
diff --git a/files/de/web/css/wertdefinitionssyntax/index.html b/files/de/web/css/value_definition_syntax/index.html
index da49131901..e842c495d8 100644
--- a/files/de/web/css/wertdefinitionssyntax/index.html
+++ b/files/de/web/css/value_definition_syntax/index.html
@@ -1,10 +1,11 @@
 ---
 title: Wertdefinitionssyntax
-slug: Web/CSS/Wertdefinitionssyntax
+slug: Web/CSS/Value_definition_syntax
 tags:
   - CSS
   - Referenz
 translation_of: Web/CSS/Value_definition_syntax
+original_slug: Web/CSS/Wertdefinitionssyntax
 ---
 <p>{{ CSSRef() }}</p>
 
diff --git a/files/de/web/guide/ajax/erste_schritte/index.html b/files/de/web/guide/ajax/getting_started/index.html
index 011696a2cd..04ce96abda 100644
--- a/files/de/web/guide/ajax/erste_schritte/index.html
+++ b/files/de/web/guide/ajax/getting_started/index.html
@@ -1,12 +1,13 @@
 ---
 title: Erste Schritte
-slug: Web/Guide/AJAX/Erste_Schritte
+slug: Web/Guide/AJAX/Getting_Started
 tags:
   - AJAX
   - API
   - JavaScript
   - XMLHttRequest
 translation_of: Web/Guide/AJAX/Getting_Started
+original_slug: Web/Guide/AJAX/Erste_Schritte
 ---
 <div>{{DefaultAPISidebar("XMLHttpRequest")}}</div>
 
diff --git a/files/de/web/guide/html/inhaltskategorien/index.html b/files/de/web/guide/html/content_categories/index.html
index 03687c47af..f98adc0e4b 100644
--- a/files/de/web/guide/html/inhaltskategorien/index.html
+++ b/files/de/web/guide/html/content_categories/index.html
@@ -1,6 +1,6 @@
 ---
 title: Inhaltskategorien
-slug: Web/Guide/HTML/Inhaltskategorien
+slug: Web/Guide/HTML/Content_categories
 tags:
   - Anleitung
   - HTML
@@ -9,6 +9,7 @@ tags:
   - Web
   - erweitert
 translation_of: Web/Guide/HTML/Content_categories
+original_slug: Web/Guide/HTML/Inhaltskategorien
 ---
 <p><span class="seoSummary">Für jedes HTML-Element gibt es Regeln, welche definieren, welchen Inhalt es hat. Diese Regeln sind zu Inhaltsmodellen gruppiert, welche für mehrere Elemente gelten. Jedes HTML-Element gehört zu null oder einem oder mehreren Inhaltsmodellen, von welchen jedes die Regeln bestimmt, welche der Inhalt des Elementes in einem gültigen HTML-Document befolgen muss.</span></p>
 
diff --git a/files/de/web/guide/html/content_editable/index.html b/files/de/web/guide/html/editable_content/index.html
index 03ab2fdfe0..f419ddb256 100644
--- a/files/de/web/guide/html/content_editable/index.html
+++ b/files/de/web/guide/html/editable_content/index.html
@@ -1,9 +1,10 @@
 ---
 title: Content Editable
-slug: Web/Guide/HTML/Content_Editable
+slug: Web/Guide/HTML/Editable_content
 tags:
   - HTML5 Inhalt ändern editierbar
 translation_of: Web/Guide/HTML/Editable_content
+original_slug: Web/Guide/HTML/Content_Editable
 ---
 <p><span class="seoSummary">In HTML5 kann jedes Element editiert werden. Mit JavaScript Event handlers können Sie Ihre Webseite in einen umfangreichen und schnellen Texteditor verwandeln. Dieser Artikel gibt einige Informationen über diese Funktion.</span></p>
 
diff --git a/files/de/web/html/html5/index.html b/files/de/web/guide/html/html5/index.html
index a6f25869e9..17b92f244a 100644
--- a/files/de/web/html/html5/index.html
+++ b/files/de/web/guide/html/html5/index.html
@@ -1,12 +1,13 @@
 ---
 title: HTML5
-slug: Web/HTML/HTML5
+slug: Web/Guide/HTML/HTML5
 tags:
   - HTML
   - HTML5
   - References
   - Web Development
 translation_of: Web/Guide/HTML/HTML5
+original_slug: Web/HTML/HTML5
 ---
 <p><span class="seoSummary"><strong>HTML5</strong> ist die aktuellste Entwicklung des Web Standards, der <a href="/en-US/docs/HTML" title="HTML">HTML</a> definiert.</span> Der Begriff repräsentiert zwei verschiedene Konzepte:</p>
 
diff --git a/files/de/web/guide/html/sections_and_outlines_of_an_html5_document/index.html b/files/de/web/guide/html/using_html_sections_and_outlines/index.html
index 882a3333dc..0dad2f01c2 100644
--- a/files/de/web/guide/html/sections_and_outlines_of_an_html5_document/index.html
+++ b/files/de/web/guide/html/using_html_sections_and_outlines/index.html
@@ -1,7 +1,8 @@
 ---
 title: Verwendung von HTML-Abschnitten und -Gliederungen
-slug: Web/Guide/HTML/Sections_and_Outlines_of_an_HTML5_document
+slug: Web/Guide/HTML/Using_HTML_sections_and_outlines
 translation_of: Web/Guide/HTML/Using_HTML_sections_and_outlines
+original_slug: Web/Guide/HTML/Sections_and_Outlines_of_an_HTML5_document
 ---
 <div>{{HTMLSidebar}}</div>
 
diff --git a/files/de/web_development/mobile/index.html b/files/de/web/guide/mobile/index.html
index cc288a9c45..11f17242c7 100644
--- a/files/de/web_development/mobile/index.html
+++ b/files/de/web/guide/mobile/index.html
@@ -1,6 +1,6 @@
 ---
 title: Mobile Web development
-slug: Web_Development/Mobile
+slug: Web/Guide/Mobile
 tags:
   - Mobile
   - NeedsTranslation
@@ -8,6 +8,7 @@ tags:
   - Web Development
 translation_of: Web/Guide/Mobile
 translation_of_original: Web_Development/Mobile
+original_slug: Web_Development/Mobile
 ---
 <p>Developing web sites to be viewed on mobile devices requires approaches that ensure a web site works as well on mobile devices as it does on desktop browsers. The following articles describe some of these approaches.</p>
 <ul>
diff --git a/files/de/web/html/block-level_elemente/index.html b/files/de/web/html/block-level_elements/index.html
index ed5cd1af79..da76edc3dd 100644
--- a/files/de/web/html/block-level_elemente/index.html
+++ b/files/de/web/html/block-level_elements/index.html
@@ -1,6 +1,6 @@
 ---
 title: Block-Level Elemente
-slug: Web/HTML/Block-level_elemente
+slug: Web/HTML/Block-level_elements
 tags:
   - Anfänger
   - Beginner
@@ -11,6 +11,7 @@ tags:
   - Referenzen
   - Web Programmierung
 translation_of: Web/HTML/Block-level_elements
+original_slug: Web/HTML/Block-level_elemente
 ---
 <p>Block- und <a href="/de/docs/Web/HTML/Inline_elemente" title="/en-US/docs/HTML/inline_elements">Inline-Elemente</a> sind die zwei ursprünglichen Kategorien der darstellenden HTML-Elemente.</p>
 
diff --git a/files/de/web/html/element/h1-h6/index.html b/files/de/web/html/element/heading_elements/index.html
index 1c8aa07e0f..b337f4882d 100644
--- a/files/de/web/html/element/h1-h6/index.html
+++ b/files/de/web/html/element/heading_elements/index.html
@@ -1,11 +1,12 @@
 ---
 title: h1-h6
-slug: Web/HTML/Element/h1-h6
+slug: Web/HTML/Element/Heading_Elements
 tags:
   - HTML
   - HTML Elemente
   - HTML Referenz
 translation_of: Web/HTML/Element/Heading_Elements
+original_slug: Web/HTML/Element/h1-h6
 ---
 <h3 id="Übersicht">Übersicht</h3>
 
diff --git a/files/de/web/html/globale_attribute/accesskey/index.html b/files/de/web/html/global_attributes/accesskey/index.html
index 2fff85d11a..8f90fb4e9c 100644
--- a/files/de/web/html/globale_attribute/accesskey/index.html
+++ b/files/de/web/html/global_attributes/accesskey/index.html
@@ -1,11 +1,12 @@
 ---
 title: accesskey
-slug: Web/HTML/Globale_Attribute/accesskey
+slug: Web/HTML/Global_attributes/accesskey
 tags:
   - Globale Attribute
   - HTML
   - Referenz
 translation_of: Web/HTML/Global_attributes/accesskey
+original_slug: Web/HTML/Globale_Attribute/accesskey
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/autocapitalize/index.html b/files/de/web/html/global_attributes/autocapitalize/index.html
index 33eb99d131..c5ae555921 100644
--- a/files/de/web/html/globale_attribute/autocapitalize/index.html
+++ b/files/de/web/html/global_attributes/autocapitalize/index.html
@@ -1,11 +1,12 @@
 ---
 title: autocapitalize
-slug: Web/HTML/Globale_Attribute/autocapitalize
+slug: Web/HTML/Global_attributes/autocapitalize
 tags:
   - Automatische Großschreibung
   - Globales Attribut
   - HTML
 translation_of: Web/HTML/Global_attributes/autocapitalize
+original_slug: Web/HTML/Globale_Attribute/autocapitalize
 ---
 <p>{{HTMLSidebar("Global_attributes")}}</p>
 
diff --git a/files/de/web/html/globale_attribute/class/index.html b/files/de/web/html/global_attributes/class/index.html
index cf2366a55f..6758d1c315 100644
--- a/files/de/web/html/globale_attribute/class/index.html
+++ b/files/de/web/html/global_attributes/class/index.html
@@ -1,9 +1,10 @@
 ---
 title: class
-slug: Web/HTML/Globale_Attribute/class
+slug: Web/HTML/Global_attributes/class
 tags:
   - Klassen Globale Attribute
 translation_of: Web/HTML/Global_attributes/class
+original_slug: Web/HTML/Globale_Attribute/class
 ---
 <p class="note">{{HTMLSidebar("Global_attributes")}}</p>
 
diff --git a/files/de/web/html/globale_attribute/contenteditable/index.html b/files/de/web/html/global_attributes/contenteditable/index.html
index 916eaf2073..7f61ceab45 100644
--- a/files/de/web/html/globale_attribute/contenteditable/index.html
+++ b/files/de/web/html/global_attributes/contenteditable/index.html
@@ -1,6 +1,6 @@
 ---
 title: contenteditable
-slug: Web/HTML/Globale_Attribute/contenteditable
+slug: Web/HTML/Global_attributes/contenteditable
 tags:
   - Globale Attribute
   - HTML
@@ -9,6 +9,7 @@ tags:
   - Texteingabe
   - contenteditable
 translation_of: Web/HTML/Global_attributes/contenteditable
+original_slug: Web/HTML/Globale_Attribute/contenteditable
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/kontextmenu/index.html b/files/de/web/html/global_attributes/contextmenu/index.html
index 33c1cc2e99..ba909b7e07 100644
--- a/files/de/web/html/globale_attribute/kontextmenu/index.html
+++ b/files/de/web/html/global_attributes/contextmenu/index.html
@@ -1,12 +1,13 @@
 ---
 title: Kontextmenü
-slug: Web/HTML/Globale_Attribute/kontextmenu
+slug: Web/HTML/Global_attributes/contextmenu
 tags:
   - Globale Attribute
   - HTML
   - Kontextmenü
   - Referenz
 translation_of: Web/HTML/Global_attributes/contextmenu
+original_slug: Web/HTML/Globale_Attribute/kontextmenu
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/dir/index.html b/files/de/web/html/global_attributes/dir/index.html
index 28ed6389ac..056f2cc6e2 100644
--- a/files/de/web/html/globale_attribute/dir/index.html
+++ b/files/de/web/html/global_attributes/dir/index.html
@@ -1,12 +1,13 @@
 ---
 title: dir
-slug: Web/HTML/Globale_Attribute/dir
+slug: Web/HTML/Global_attributes/dir
 tags:
   - Globales Attribut
   - HTML
   - Referenz
   - Textrichtung
 translation_of: Web/HTML/Global_attributes/dir
+original_slug: Web/HTML/Globale_Attribute/dir
 ---
 <p>{{HTMLSidebar("Global_attributes")}}</p>
 
diff --git a/files/de/web/html/globale_attribute/draggable/index.html b/files/de/web/html/global_attributes/draggable/index.html
index 3a0dfd105e..d03a2fed10 100644
--- a/files/de/web/html/globale_attribute/draggable/index.html
+++ b/files/de/web/html/global_attributes/draggable/index.html
@@ -1,12 +1,13 @@
 ---
 title: draggable
-slug: Web/HTML/Globale_Attribute/draggable
+slug: Web/HTML/Global_attributes/draggable
 tags:
   - Experimental
   - Global attributes
   - HTML
   - Reference
 translation_of: Web/HTML/Global_attributes/draggable
+original_slug: Web/HTML/Globale_Attribute/draggable
 ---
 <p>{{HTMLSidebar("Global_attributes")}} {{SeeCompatTable}}</p>
 
diff --git a/files/de/web/html/globale_attribute/hidden/index.html b/files/de/web/html/global_attributes/hidden/index.html
index f78b025ca1..4d9f2dda9d 100644
--- a/files/de/web/html/globale_attribute/hidden/index.html
+++ b/files/de/web/html/global_attributes/hidden/index.html
@@ -1,6 +1,6 @@
 ---
 title: hidden
-slug: Web/HTML/Globale_Attribute/hidden
+slug: Web/HTML/Global_attributes/hidden
 tags:
   - Attribut
   - Globales Attribut
@@ -8,6 +8,7 @@ tags:
   - Reference
   - Referenz
 translation_of: Web/HTML/Global_attributes/hidden
+original_slug: Web/HTML/Globale_Attribute/hidden
 ---
 <p class="note">{{HTMLSidebar("Global_attributes")}}</p>
 
diff --git a/files/de/web/html/globale_attribute/id/index.html b/files/de/web/html/global_attributes/id/index.html
index 6e1ef85aad..756653500a 100644
--- a/files/de/web/html/globale_attribute/id/index.html
+++ b/files/de/web/html/global_attributes/id/index.html
@@ -1,7 +1,8 @@
 ---
 title: id
-slug: Web/HTML/Globale_Attribute/id
+slug: Web/HTML/Global_attributes/id
 translation_of: Web/HTML/Global_attributes/id
+original_slug: Web/HTML/Globale_Attribute/id
 ---
 <p class="note">{{HTMLSidebar("Global_attributes")}}</p>
 
diff --git a/files/de/web/html/globale_attribute/index.html b/files/de/web/html/global_attributes/index.html
index 59b8f1d2aa..a5a6d83f84 100644
--- a/files/de/web/html/globale_attribute/index.html
+++ b/files/de/web/html/global_attributes/index.html
@@ -1,12 +1,13 @@
 ---
 title: Globale Attribute
-slug: Web/HTML/Globale_Attribute
+slug: Web/HTML/Global_attributes
 tags:
   - Attribute
   - HTML
   - Reference
   - Web
 translation_of: Web/HTML/Global_attributes
+original_slug: Web/HTML/Globale_Attribute
 ---
 <h3 id="HTMLSidebarGlobal_attributes">{{HTMLSidebar("Global_attributes")}}</h3>
 
diff --git a/files/de/web/html/globale_attribute/inputmode/index.html b/files/de/web/html/global_attributes/inputmode/index.html
index d5dd048922..2614f0c545 100644
--- a/files/de/web/html/globale_attribute/inputmode/index.html
+++ b/files/de/web/html/global_attributes/inputmode/index.html
@@ -1,6 +1,6 @@
 ---
 title: inputmode
-slug: Web/HTML/Globale_Attribute/inputmode
+slug: Web/HTML/Global_attributes/inputmode
 tags:
   - Attribute
   - Bearbeiten
@@ -14,6 +14,7 @@ tags:
   - Web
   - global
 translation_of: Web/HTML/Global_attributes/inputmode
+original_slug: Web/HTML/Globale_Attribute/inputmode
 ---
 <p><span class="seoSummary">Das <strong><code>inputmode</code></strong> <a href="/en-US/docs/Web/HTML/Global_attributes">globale Attribut</a> </span>ist ein aufgezähltes Attribut, das einen Hinweis auf die Art der Daten liefert, die der Benutzer während der Bearbeitung des Elements oder seines Inhalts eingeben kann. Es kann die folgenden Werte haben:</p>
 
diff --git a/files/de/web/html/globale_attribute/is/index.html b/files/de/web/html/global_attributes/is/index.html
index ff888d1002..224c20c184 100644
--- a/files/de/web/html/globale_attribute/is/index.html
+++ b/files/de/web/html/global_attributes/is/index.html
@@ -1,7 +1,8 @@
 ---
 title: is
-slug: Web/HTML/Globale_Attribute/is
+slug: Web/HTML/Global_attributes/is
 translation_of: Web/HTML/Global_attributes/is
+original_slug: Web/HTML/Globale_Attribute/is
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/lang/index.html b/files/de/web/html/global_attributes/lang/index.html
index 705dfa4396..f88203d8e2 100644
--- a/files/de/web/html/globale_attribute/lang/index.html
+++ b/files/de/web/html/global_attributes/lang/index.html
@@ -1,6 +1,6 @@
 ---
 title: lang
-slug: Web/HTML/Globale_Attribute/lang
+slug: Web/HTML/Global_attributes/lang
 tags:
   - Attribute
   - HTML
@@ -8,6 +8,7 @@ tags:
   - Sprachen
   - global
 translation_of: Web/HTML/Global_attributes/lang
+original_slug: Web/HTML/Globale_Attribute/lang
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/style/index.html b/files/de/web/html/global_attributes/style/index.html
index 7c3c2b5c77..414827a1ca 100644
--- a/files/de/web/html/globale_attribute/style/index.html
+++ b/files/de/web/html/global_attributes/style/index.html
@@ -1,7 +1,8 @@
 ---
 title: style
-slug: Web/HTML/Globale_Attribute/style
+slug: Web/HTML/Global_attributes/style
 translation_of: Web/HTML/Global_attributes/style
+original_slug: Web/HTML/Globale_Attribute/style
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/tabindex/index.html b/files/de/web/html/global_attributes/tabindex/index.html
index e097cc7985..a6a80c39b6 100644
--- a/files/de/web/html/globale_attribute/tabindex/index.html
+++ b/files/de/web/html/global_attributes/tabindex/index.html
@@ -1,6 +1,6 @@
 ---
 title: tabindex
-slug: Web/HTML/Globale_Attribute/tabindex
+slug: Web/HTML/Global_attributes/tabindex
 tags:
   - Accessibility
   - Global attributes
@@ -8,6 +8,7 @@ tags:
   - Reference
   - a11y
 translation_of: Web/HTML/Global_attributes/tabindex
+original_slug: Web/HTML/Globale_Attribute/tabindex
 ---
 <div>{{HTMLSidebar("Global_attributes")}}</div>
 
diff --git a/files/de/web/html/globale_attribute/title/index.html b/files/de/web/html/global_attributes/title/index.html
index 2d94d0202c..eb3aa79924 100644
--- a/files/de/web/html/globale_attribute/title/index.html
+++ b/files/de/web/html/global_attributes/title/index.html
@@ -1,12 +1,13 @@
 ---
 title: title
-slug: Web/HTML/Globale_Attribute/title
+slug: Web/HTML/Global_attributes/title
 tags:
   - Globales Attribut
   - HTML
   - Referenz
   - Referenzen
 translation_of: Web/HTML/Global_attributes/title
+original_slug: Web/HTML/Globale_Attribute/title
 ---
 <p>{{HTMLSidebar("Global_attributes")}}</p>
 
diff --git a/files/de/web/html/globale_attribute/translate/index.html b/files/de/web/html/global_attributes/translate/index.html
index 5cf914afb3..0de52cf892 100644
--- a/files/de/web/html/globale_attribute/translate/index.html
+++ b/files/de/web/html/global_attributes/translate/index.html
@@ -1,6 +1,6 @@
 ---
 title: Übersetztung in Deutsch
-slug: Web/HTML/Globale_Attribute/translate
+slug: Web/HTML/Global_attributes/translate
 tags:
   - DE von LV
   - Editor's.
@@ -9,6 +9,7 @@ tags:
   - HTML-DE
   - german
 translation_of: Web/HTML/Global_attributes/translate
+original_slug: Web/HTML/Globale_Attribute/translate
 ---
 <p>Anerkannte englische (US) Version:</p>
 
diff --git a/files/de/web/html/inline_elemente/index.html b/files/de/web/html/inline_elements/index.html
index 29f7e242cd..95703b000a 100644
--- a/files/de/web/html/inline_elemente/index.html
+++ b/files/de/web/html/inline_elements/index.html
@@ -1,7 +1,8 @@
 ---
 title: Inline-Elemente
-slug: Web/HTML/Inline_elemente
+slug: Web/HTML/Inline_elements
 translation_of: Web/HTML/Inline_elements
+original_slug: Web/HTML/Inline_elemente
 ---
 <h3 id="Summary" name="Summary">Zusammenfassung</h3>
 
diff --git a/files/de/web/html/referenz/index.html b/files/de/web/html/reference/index.html
index b9ad6c3301..8798abcf56 100644
--- a/files/de/web/html/referenz/index.html
+++ b/files/de/web/html/reference/index.html
@@ -1,12 +1,13 @@
 ---
 title: HTML-Referenz
-slug: Web/HTML/Referenz
+slug: Web/HTML/Reference
 tags:
   - Einstieg
   - HTML
   - Refernz
   - Web
 translation_of: Web/HTML/Reference
+original_slug: Web/HTML/Referenz
 ---
 <div>{{HTMLSidebar}}</div>
 
diff --git a/files/de/web/http/caching_faq/index.html b/files/de/web/http/caching/index.html
index 79aa913713..627f41247f 100644
--- a/files/de/web/http/caching_faq/index.html
+++ b/files/de/web/http/caching/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTTP Caching FAQ
-slug: Web/HTTP/Caching_FAQ
+slug: Web/HTTP/Caching
 tags:
   - Cache
   - HTTP
@@ -8,6 +8,7 @@ tags:
   - NeedsContent
   - header
 translation_of: Web/HTTP/Caching
+original_slug: Web/HTTP/Caching_FAQ
 ---
 <h3 id="What_is_cached.3F" name="What_is_cached.3F">Was wird im Cache gespeichert?</h3>
 
diff --git a/files/de/web/http/cors/errors/corsfehlenderallowheaderauspreflight/index.html b/files/de/web/http/cors/errors/corsmissingallowheaderfrompreflight/index.html
index d40ac7b5b5..0b7fc45711 100644
--- a/files/de/web/http/cors/errors/corsfehlenderallowheaderauspreflight/index.html
+++ b/files/de/web/http/cors/errors/corsmissingallowheaderfrompreflight/index.html
@@ -2,7 +2,7 @@
 title: >-
   Grund: fehlendes Token ‘xyz’ in CORS-Kopfzeile 'Access-Control-Allow-Headers'
   aus dem CORS-Preflight-Kanal
-slug: Web/HTTP/CORS/Errors/CORSFehlenderAllowHeaderAusPreflight
+slug: Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight
 tags:
   - CORS
   - CORSMissingAllowHeaderFromPreflight
@@ -14,6 +14,7 @@ tags:
   - Sicherheit
   - Ursachen
 translation_of: Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight
+original_slug: Web/HTTP/CORS/Errors/CORSFehlenderAllowHeaderAusPreflight
 ---
 <div>{{HTTPSidebar}}</div>
 
diff --git a/files/de/web/http/cors/errors/corsfehltquelleerlauben/index.html b/files/de/web/http/cors/errors/corsmissingalloworigin/index.html
index 8ccb987535..49f901d858 100644
--- a/files/de/web/http/cors/errors/corsfehltquelleerlauben/index.html
+++ b/files/de/web/http/cors/errors/corsmissingalloworigin/index.html
@@ -2,7 +2,7 @@
 title: >-
   Grund: CORS header 'AccessGrund: CORS-Kopfzeile 'Access-Control-Allow-Origin'
   fehlt
-slug: Web/HTTP/CORS/Errors/CORSFehltQuelleErlauben
+slug: Web/HTTP/CORS/Errors/CORSMissingAllowOrigin
 tags:
   - CORS
   - CORSMissingAllowOrigin
@@ -17,6 +17,7 @@ tags:
   - Sicherheit
   - troubleshooting
 translation_of: Web/HTTP/CORS/Errors/CORSMissingAllowOrigin
+original_slug: Web/HTTP/CORS/Errors/CORSFehltQuelleErlauben
 ---
 <div>{{HTTPSidebar}}</div>
 
diff --git a/files/de/web/security/public_key_pinning/index.html b/files/de/web/http/public_key_pinning/index.html
index 337b9b600e..42022048be 100644
--- a/files/de/web/security/public_key_pinning/index.html
+++ b/files/de/web/http/public_key_pinning/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTTP Public Key Pinning (HPKP)
-slug: Web/Security/Public_Key_Pinning
+slug: Web/HTTP/Public_Key_Pinning
 tags:
   - Anleitung
   - HPKP
@@ -8,6 +8,7 @@ tags:
   - Sicherheit
   - Webentwicklung
 translation_of: Web/HTTP/Public_Key_Pinning
+original_slug: Web/Security/Public_Key_Pinning
 ---
 <div>{{HTTPSidebar}}</div>
 
diff --git a/files/de/web/javascript/eine_wiedereinfuehrung_in_javascript/index.html b/files/de/web/javascript/a_re-introduction_to_javascript/index.html
index a306d9fd16..1f02dce28d 100644
--- a/files/de/web/javascript/eine_wiedereinfuehrung_in_javascript/index.html
+++ b/files/de/web/javascript/a_re-introduction_to_javascript/index.html
@@ -1,6 +1,6 @@
 ---
 title: Eine Wiedereinführung in JavaScript
-slug: Web/JavaScript/Eine_Wiedereinfuehrung_in_JavaScript
+slug: Web/JavaScript/A_re-introduction_to_JavaScript
 tags:
   - Anleitung
   - CodingScripting
@@ -10,6 +10,7 @@ tags:
   - JavaScript
   - Lernen
 translation_of: Web/JavaScript/A_re-introduction_to_JavaScript
+original_slug: Web/JavaScript/Eine_Wiedereinfuehrung_in_JavaScript
 ---
 <div>{{jsSidebar}}</div>
 
diff --git a/files/de/web/javascript/datenstrukturen/index.html b/files/de/web/javascript/data_structures/index.html
index d918cd7a0e..31c2ff40ef 100644
--- a/files/de/web/javascript/datenstrukturen/index.html
+++ b/files/de/web/javascript/data_structures/index.html
@@ -1,11 +1,12 @@
 ---
 title: JavaScript Datentypen und Datenstrukturen
-slug: Web/JavaScript/Datenstrukturen
+slug: Web/JavaScript/Data_structures
 tags:
   - Beginner
   - JavaScript
   - Types
 translation_of: Web/JavaScript/Data_structures
+original_slug: Web/JavaScript/Datenstrukturen
 ---
 <div>{{jsSidebar("More")}}</div>
 
diff --git a/files/de/web/javascript/aufzählbarkeit_und_zugehörigkeit_von_eigenschaften/index.html b/files/de/web/javascript/enumerability_and_ownership_of_properties/index.html
index 70c769be5a..43343c41bb 100644
--- a/files/de/web/javascript/aufzählbarkeit_und_zugehörigkeit_von_eigenschaften/index.html
+++ b/files/de/web/javascript/enumerability_and_ownership_of_properties/index.html
@@ -1,12 +1,13 @@
 ---
 title: Aufzählbarkeit und Zugehörigkeit von Eigenschaften
-slug: Web/JavaScript/Aufzählbarkeit_und_Zugehörigkeit_von_Eigenschaften
+slug: Web/JavaScript/Enumerability_and_ownership_of_properties
 tags:
   - Eigenschaft
   - JavaScript
   - Objekt
   - enumerable
 translation_of: Web/JavaScript/Enumerability_and_ownership_of_properties
+original_slug: Web/JavaScript/Aufzählbarkeit_und_Zugehörigkeit_von_Eigenschaften
 ---
 <div>{{JsSidebar("More")}}</div>
 
diff --git a/files/de/web/javascript/vergleiche_auf_gleichheit_und_deren_verwendung/index.html b/files/de/web/javascript/equality_comparisons_and_sameness/index.html
index 2b9be0a283..656b2146dc 100644
--- a/files/de/web/javascript/vergleiche_auf_gleichheit_und_deren_verwendung/index.html
+++ b/files/de/web/javascript/equality_comparisons_and_sameness/index.html
@@ -1,7 +1,8 @@
 ---
 title: Vergleiche auf Gleichheit und deren Verwendung
-slug: Web/JavaScript/Vergleiche_auf_Gleichheit_und_deren_Verwendung
+slug: Web/JavaScript/Equality_comparisons_and_sameness
 translation_of: Web/JavaScript/Equality_comparisons_and_sameness
+original_slug: Web/JavaScript/Vergleiche_auf_Gleichheit_und_deren_Verwendung
 ---
 <div>{{jsSidebar("Intermediate")}}</div>
 
diff --git a/files/de/web/javascript/guide/kontrollfluss_und_fehlerbehandlung/index.html b/files/de/web/javascript/guide/control_flow_and_error_handling/index.html
index 97dbba8b3e..203a8a31b9 100644
--- a/files/de/web/javascript/guide/kontrollfluss_und_fehlerbehandlung/index.html
+++ b/files/de/web/javascript/guide/control_flow_and_error_handling/index.html
@@ -1,12 +1,13 @@
 ---
 title: Kontrollfluss und Fehlerbehandlung
-slug: Web/JavaScript/Guide/Kontrollfluss_und_Fehlerbehandlung
+slug: Web/JavaScript/Guide/Control_flow_and_error_handling
 tags:
   - Beginner
   - Guide
   - JavaScript
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Control_flow_and_error_handling
+original_slug: Web/JavaScript/Guide/Kontrollfluss_und_Fehlerbehandlung
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Grammatik_und_Typen", "Web/JavaScript/Guide/Schleifen_und_Iterationen")}}</div>
 
diff --git a/files/de/web/javascript/guide/feinheiten_des_objektmodells/index.html b/files/de/web/javascript/guide/details_of_the_object_model/index.html
index 4d5e46ac26..364bdc6531 100644
--- a/files/de/web/javascript/guide/feinheiten_des_objektmodells/index.html
+++ b/files/de/web/javascript/guide/details_of_the_object_model/index.html
@@ -1,13 +1,14 @@
 ---
 title: Feinheiten des Objektmodells
-slug: Web/JavaScript/Guide/Feinheiten_des_Objektmodells
+slug: Web/JavaScript/Guide/Details_of_the_Object_Model
 tags:
   - Guide
   - Intermediate
   - JavaScript
   - Object
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Details_of_the_Object_Model
+original_slug: Web/JavaScript/Guide/Feinheiten_des_Objektmodells
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Mit_Objekten_arbeiten", "Web/JavaScript/Guide/Using_promises")}}</div>
 
diff --git a/files/de/web/javascript/guide/ausdruecke_und_operatoren/index.html b/files/de/web/javascript/guide/expressions_and_operators/index.html
index 7a0e723c6c..1c45fe5364 100644
--- a/files/de/web/javascript/guide/ausdruecke_und_operatoren/index.html
+++ b/files/de/web/javascript/guide/expressions_and_operators/index.html
@@ -1,14 +1,15 @@
 ---
 title: Ausdrücke und Operatoren
-slug: Web/JavaScript/Guide/Ausdruecke_und_Operatoren
+slug: Web/JavaScript/Guide/Expressions_and_Operators
 tags:
   - Beginner
   - Extensions
   - Guide
   - JavaScript
   - Operatoren
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Expressions_and_Operators
+original_slug: Web/JavaScript/Guide/Ausdruecke_und_Operatoren
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Funktionen", "Web/JavaScript/Guide/Numbers_and_dates")}}</div>
 
diff --git a/files/de/web/javascript/guide/funktionen/index.html b/files/de/web/javascript/guide/functions/index.html
index 3eeeb4f4e5..4712c55d02 100644
--- a/files/de/web/javascript/guide/funktionen/index.html
+++ b/files/de/web/javascript/guide/functions/index.html
@@ -1,13 +1,14 @@
 ---
 title: Funktionen
-slug: Web/JavaScript/Guide/Funktionen
+slug: Web/JavaScript/Guide/Functions
 tags:
   - Beginner
   - Functions
   - Guide
   - JavaScript
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Functions
+original_slug: Web/JavaScript/Guide/Funktionen
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Schleifen_und_Iterationen", "Web/JavaScript/Guide/Ausdruecke_und_Operatoren")}}</div>
 
diff --git a/files/de/web/javascript/guide/grammatik_und_typen/index.html b/files/de/web/javascript/guide/grammar_and_types/index.html
index 3ca2b9936b..66dbfe0b61 100644
--- a/files/de/web/javascript/guide/grammatik_und_typen/index.html
+++ b/files/de/web/javascript/guide/grammar_and_types/index.html
@@ -1,11 +1,12 @@
 ---
 title: Grammatik und Typen
-slug: Web/JavaScript/Guide/Grammatik_und_Typen
+slug: Web/JavaScript/Guide/Grammar_and_types
 tags:
   - Guide
   - JavaScript
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Grammar_and_types
+original_slug: Web/JavaScript/Guide/Grammatik_und_Typen
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Einführung", "Web/JavaScript/Guide/Kontrollfluss_und_Fehlerbehandlung")}}</div>
 
diff --git a/files/de/web/javascript/guide/einführung/index.html b/files/de/web/javascript/guide/introduction/index.html
index b38cb1b700..ee1ab1da7d 100644
--- a/files/de/web/javascript/guide/einführung/index.html
+++ b/files/de/web/javascript/guide/introduction/index.html
@@ -1,13 +1,14 @@
 ---
 title: Einführung
-slug: Web/JavaScript/Guide/Einführung
+slug: Web/JavaScript/Guide/Introduction
 tags:
   - Beginner
   - Guide
   - Introduction
   - JavaScript
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Introduction
+original_slug: Web/JavaScript/Guide/Einführung
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide", "Web/JavaScript/Guide/Grammatik_und_Typen")}}</div>
 
diff --git a/files/de/web/javascript/guide/schleifen_und_iterationen/index.html b/files/de/web/javascript/guide/loops_and_iteration/index.html
index 9f351abcd9..2653fa717d 100644
--- a/files/de/web/javascript/guide/schleifen_und_iterationen/index.html
+++ b/files/de/web/javascript/guide/loops_and_iteration/index.html
@@ -1,13 +1,14 @@
 ---
 title: Schleifen und Iterationen
-slug: Web/JavaScript/Guide/schleifen_und_iterationen
+slug: Web/JavaScript/Guide/Loops_and_iteration
 tags:
   - Guide
   - JavaScript
   - Loop
   - Syntax
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Loops_and_iteration
+original_slug: Web/JavaScript/Guide/schleifen_und_iterationen
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Control_flow_and_error_handling", "Web/JavaScript/Guide/Functions")}}</div>
 
diff --git a/files/de/web/javascript/guide/textformatierung/index.html b/files/de/web/javascript/guide/text_formatting/index.html
index 48c45c9871..4aa6460821 100644
--- a/files/de/web/javascript/guide/textformatierung/index.html
+++ b/files/de/web/javascript/guide/text_formatting/index.html
@@ -1,11 +1,12 @@
 ---
 title: Textformatierung
-slug: Web/JavaScript/Guide/Textformatierung
+slug: Web/JavaScript/Guide/Text_formatting
 tags:
   - Guide
   - JavaScript
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Text_formatting
+original_slug: Web/JavaScript/Guide/Textformatierung
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Numbers_and_dates", "Web/JavaScript/Guide/Regular_Expressions")}}</div>
 
diff --git a/files/de/web/javascript/guide/mit_objekten_arbeiten/index.html b/files/de/web/javascript/guide/working_with_objects/index.html
index 2448621a4a..8bd40a23e7 100644
--- a/files/de/web/javascript/guide/mit_objekten_arbeiten/index.html
+++ b/files/de/web/javascript/guide/working_with_objects/index.html
@@ -1,6 +1,6 @@
 ---
 title: Mit Objekten arbeiten
-slug: Web/JavaScript/Guide/Mit_Objekten_arbeiten
+slug: Web/JavaScript/Guide/Working_with_Objects
 tags:
   - Beginner
   - Comparing object
@@ -9,8 +9,9 @@ tags:
   - Guide
   - JavaScript
   - Object
-  - 'l10n:priority'
+  - l10n:priority
 translation_of: Web/JavaScript/Guide/Working_with_Objects
+original_slug: Web/JavaScript/Guide/Mit_Objekten_arbeiten
 ---
 <div>{{jsSidebar("JavaScript Guide")}} {{PreviousNext("Web/JavaScript/Guide/Regular_Expressions", "Web/JavaScript/Guide/Feinheiten_des_Objektmodells")}}</div>
 
diff --git a/files/de/web/javascript/javascript_technologieuebersicht/index.html b/files/de/web/javascript/javascript_technologies_overview/index.html
index ae24cb1ca3..0639d96e57 100644
--- a/files/de/web/javascript/javascript_technologieuebersicht/index.html
+++ b/files/de/web/javascript/javascript_technologies_overview/index.html
@@ -1,7 +1,8 @@
 ---
 title: JavaScript Technologieübersicht
-slug: Web/JavaScript/JavaScript_technologieuebersicht
+slug: Web/JavaScript/JavaScript_technologies_overview
 translation_of: Web/JavaScript/JavaScript_technologies_overview
+original_slug: Web/JavaScript/JavaScript_technologieuebersicht
 ---
 <div>{{JsSidebar("Introductory")}}</div>
 
diff --git a/files/de/web/javascript/speicherverwaltung/index.html b/files/de/web/javascript/memory_management/index.html
index 82f8977c23..25928eed26 100644
--- a/files/de/web/javascript/speicherverwaltung/index.html
+++ b/files/de/web/javascript/memory_management/index.html
@@ -1,9 +1,10 @@
 ---
 title: Speicherverwaltung
-slug: Web/JavaScript/Speicherverwaltung
+slug: Web/JavaScript/Memory_Management
 tags:
   - JavaScript
 translation_of: Web/JavaScript/Memory_Management
+original_slug: Web/JavaScript/Speicherverwaltung
 ---
 <div>{{JsSidebar("Advanced")}}</div>
 
diff --git a/files/de/web/javascript/reference/klassen/constructor/index.html b/files/de/web/javascript/reference/classes/constructor/index.html
index 5ab83ddcd5..85eadbc22c 100644
--- a/files/de/web/javascript/reference/klassen/constructor/index.html
+++ b/files/de/web/javascript/reference/classes/constructor/index.html
@@ -1,11 +1,12 @@
 ---
 title: Konstruktor
-slug: Web/JavaScript/Reference/Klassen/constructor
+slug: Web/JavaScript/Reference/Classes/constructor
 tags:
   - ECMAScript 2015
   - JavaScript
   - Klassen
 translation_of: Web/JavaScript/Reference/Classes/constructor
+original_slug: Web/JavaScript/Reference/Klassen/constructor
 ---
 <div>{{jsSidebar("Classes")}}</div>
 
diff --git a/files/de/web/javascript/reference/klassen/extends/index.html b/files/de/web/javascript/reference/classes/extends/index.html
index 29ed8c5e78..bc797f0d46 100644
--- a/files/de/web/javascript/reference/klassen/extends/index.html
+++ b/files/de/web/javascript/reference/classes/extends/index.html
@@ -1,11 +1,12 @@
 ---
 title: Erweitern
-slug: Web/JavaScript/Reference/Klassen/extends
+slug: Web/JavaScript/Reference/Classes/extends
 tags:
   - Classes
   - ECMAScript 2015
   - JavaScript
 translation_of: Web/JavaScript/Reference/Classes/extends
+original_slug: Web/JavaScript/Reference/Klassen/extends
 ---
 <div>{{jsSidebar("Classes")}}</div>
 
diff --git a/files/de/web/javascript/reference/klassen/index.html b/files/de/web/javascript/reference/classes/index.html
index 81bec0651a..cbafc60a14 100644
--- a/files/de/web/javascript/reference/klassen/index.html
+++ b/files/de/web/javascript/reference/classes/index.html
@@ -1,6 +1,6 @@
 ---
 title: Klassen
-slug: Web/JavaScript/Reference/Klassen
+slug: Web/JavaScript/Reference/Classes
 tags:
   - ECMAScript 2015
   - JavaScript
@@ -8,6 +8,7 @@ tags:
   - Konstruktor
   - Vererbung
 translation_of: Web/JavaScript/Reference/Classes
+original_slug: Web/JavaScript/Reference/Klassen
 ---
 <div>{{JsSidebar("Classes")}}</div>
 
diff --git a/files/de/web/javascript/reference/klassen/static/index.html b/files/de/web/javascript/reference/classes/static/index.html
index 9c13048498..f9ba577d7b 100644
--- a/files/de/web/javascript/reference/klassen/static/index.html
+++ b/files/de/web/javascript/reference/classes/static/index.html
@@ -1,12 +1,13 @@
 ---
 title: Statische Methoden
-slug: Web/JavaScript/Reference/Klassen/static
+slug: Web/JavaScript/Reference/Classes/static
 tags:
   - Classes
   - ECMAScript 2015
   - JavaScript
   - Static
 translation_of: Web/JavaScript/Reference/Classes/static
+original_slug: Web/JavaScript/Reference/Klassen/static
 ---
 <div>{{jsSidebar("Classes")}}</div>
 
diff --git a/files/de/web/javascript/reference/veraltete_und_abgeschaffte_features/index.html b/files/de/web/javascript/reference/deprecated_and_obsolete_features/index.html
index 412bddc553..ccf4939021 100644
--- a/files/de/web/javascript/reference/veraltete_und_abgeschaffte_features/index.html
+++ b/files/de/web/javascript/reference/deprecated_and_obsolete_features/index.html
@@ -1,7 +1,8 @@
 ---
 title: Veraltete und abgeschaffte Features
-slug: Web/JavaScript/Reference/Veraltete_und_abgeschaffte_Features
+slug: Web/JavaScript/Reference/Deprecated_and_obsolete_features
 translation_of: Web/JavaScript/Reference/Deprecated_and_obsolete_features
+original_slug: Web/JavaScript/Reference/Veraltete_und_abgeschaffte_Features
 ---
 <div>{{JsSidebar("More")}}</div>
 
diff --git a/files/de/web/javascript/reference/veraltete_und_abgeschaffte_features/the_legacy_iterator_protocol/index.html b/files/de/web/javascript/reference/deprecated_and_obsolete_features/the_legacy_iterator_protocol/index.html
index 017dcea16a..e9853e554d 100644
--- a/files/de/web/javascript/reference/veraltete_und_abgeschaffte_features/the_legacy_iterator_protocol/index.html
+++ b/files/de/web/javascript/reference/deprecated_and_obsolete_features/the_legacy_iterator_protocol/index.html
@@ -1,7 +1,7 @@
 ---
 title: The legacy Iterator protocol
 slug: >-
-  Web/JavaScript/Reference/Veraltete_und_abgeschaffte_Features/The_legacy_Iterator_protocol
+  Web/JavaScript/Reference/Deprecated_and_obsolete_features/The_legacy_Iterator_protocol
 tags:
   - ES2015
   - JavaScript
@@ -10,6 +10,8 @@ tags:
   - veralteter Iterator
 translation_of: >-
   Web/JavaScript/Reference/Deprecated_and_obsolete_features/The_legacy_Iterator_protocol
+original_slug: >-
+  Web/JavaScript/Reference/Veraltete_und_abgeschaffte_Features/The_legacy_Iterator_protocol
 ---
 <div>{{jsSidebar("More")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/already_has_pragma/index.html b/files/de/web/javascript/reference/errors/already_has_pragma/index.html
index d297d3fea9..0aa6d52e66 100644
--- a/files/de/web/javascript/reference/fehler/already_has_pragma/index.html
+++ b/files/de/web/javascript/reference/errors/already_has_pragma/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'Warning: -file- is being assigned a //# sourceMappingURL, but already has one'
-slug: Web/JavaScript/Reference/Fehler/Already_has_pragma
+slug: Web/JavaScript/Reference/Errors/Already_has_pragma
 tags:
   - Error
   - JavaScript
   - Source maps
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Already_has_pragma
+original_slug: Web/JavaScript/Reference/Fehler/Already_has_pragma
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/array_sort_argument/index.html b/files/de/web/javascript/reference/errors/array_sort_argument/index.html
index 2826cbe4c0..76c86568cf 100644
--- a/files/de/web/javascript/reference/fehler/array_sort_argument/index.html
+++ b/files/de/web/javascript/reference/errors/array_sort_argument/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: invalid Array.prototype.sort argument'
-slug: Web/JavaScript/Reference/Fehler/Array_sort_argument
+slug: Web/JavaScript/Reference/Errors/Array_sort_argument
 tags:
   - Error
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Array_sort_argument
+original_slug: Web/JavaScript/Reference/Fehler/Array_sort_argument
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/bad_octal/index.html b/files/de/web/javascript/reference/errors/bad_octal/index.html
index d021c0daa4..4ddabfe7d4 100644
--- a/files/de/web/javascript/reference/fehler/bad_octal/index.html
+++ b/files/de/web/javascript/reference/errors/bad_octal/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'Warning: 08/09 is not a legal ECMA-262 octal constant'
-slug: Web/JavaScript/Reference/Fehler/Bad_octal
+slug: Web/JavaScript/Reference/Errors/Bad_octal
 tags:
   - Errors
   - JavaScript
   - SyntaxError
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Bad_octal
+original_slug: Web/JavaScript/Reference/Fehler/Bad_octal
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/bad_radix/index.html b/files/de/web/javascript/reference/errors/bad_radix/index.html
index 25c473eb93..86e93fb02c 100644
--- a/files/de/web/javascript/reference/fehler/bad_radix/index.html
+++ b/files/de/web/javascript/reference/errors/bad_radix/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: radix must be an integer'
-slug: Web/JavaScript/Reference/Fehler/Bad_radix
+slug: Web/JavaScript/Reference/Errors/Bad_radix
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Bad_radix
+original_slug: Web/JavaScript/Reference/Fehler/Bad_radix
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/bad_regexp_flag/index.html b/files/de/web/javascript/reference/errors/bad_regexp_flag/index.html
index 5bf381da53..a18dde1589 100644
--- a/files/de/web/javascript/reference/fehler/bad_regexp_flag/index.html
+++ b/files/de/web/javascript/reference/errors/bad_regexp_flag/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: invalid regular expression flag "x"'
-slug: Web/JavaScript/Reference/Fehler/Bad_regexp_flag
+slug: Web/JavaScript/Reference/Errors/Bad_regexp_flag
 tags:
   - Error
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Bad_regexp_flag
+original_slug: Web/JavaScript/Reference/Fehler/Bad_regexp_flag
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/bad_return_or_yield/index.html b/files/de/web/javascript/reference/errors/bad_return_or_yield/index.html
index e850455615..783d153066 100644
--- a/files/de/web/javascript/reference/fehler/bad_return_or_yield/index.html
+++ b/files/de/web/javascript/reference/errors/bad_return_or_yield/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: return not in function'
-slug: Web/JavaScript/Reference/Fehler/Bad_return_or_yield
+slug: Web/JavaScript/Reference/Errors/Bad_return_or_yield
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Bad_return_or_yield
+original_slug: Web/JavaScript/Reference/Fehler/Bad_return_or_yield
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/called_on_incompatible_type/index.html b/files/de/web/javascript/reference/errors/called_on_incompatible_type/index.html
index 1915e1b829..720195f9cf 100644
--- a/files/de/web/javascript/reference/fehler/called_on_incompatible_type/index.html
+++ b/files/de/web/javascript/reference/errors/called_on_incompatible_type/index.html
@@ -1,11 +1,12 @@
 ---
 title: X.prototype.y called on incompatible type
-slug: Web/JavaScript/Reference/Fehler/Called_on_incompatible_type
+slug: Web/JavaScript/Reference/Errors/Called_on_incompatible_type
 tags:
   - Error
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Called_on_incompatible_type
+original_slug: Web/JavaScript/Reference/Fehler/Called_on_incompatible_type
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/cant_access_lexical_declaration_before_init/index.html b/files/de/web/javascript/reference/errors/cant_access_lexical_declaration_before_init/index.html
index 16b976aef6..50698f85a0 100644
--- a/files/de/web/javascript/reference/fehler/cant_access_lexical_declaration_before_init/index.html
+++ b/files/de/web/javascript/reference/errors/cant_access_lexical_declaration_before_init/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'ReferenceError: can''t access lexical declaration`X'' before initialization'
-slug: Web/JavaScript/Reference/Fehler/Cant_access_lexical_declaration_before_init
+slug: Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init
 tags:
   - Errors
   - JavaScript
   - ReferenceError
 translation_of: Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init
+original_slug: Web/JavaScript/Reference/Fehler/Cant_access_lexical_declaration_before_init
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/cant_access_property/index.html b/files/de/web/javascript/reference/errors/cant_access_property/index.html
index 98471eb28e..d98460fd33 100644
--- a/files/de/web/javascript/reference/fehler/cant_access_property/index.html
+++ b/files/de/web/javascript/reference/errors/cant_access_property/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: can''t access property "x" of "y"'
-slug: Web/JavaScript/Reference/Fehler/Cant_access_property
+slug: Web/JavaScript/Reference/Errors/Cant_access_property
 tags:
   - Fehler
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Cant_access_property
+original_slug: Web/JavaScript/Reference/Fehler/Cant_access_property
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/cant_define_property_object_not_extensible/index.html b/files/de/web/javascript/reference/errors/cant_define_property_object_not_extensible/index.html
index 691924f427..f9cc6551b1 100644
--- a/files/de/web/javascript/reference/fehler/cant_define_property_object_not_extensible/index.html
+++ b/files/de/web/javascript/reference/errors/cant_define_property_object_not_extensible/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: can''t define property "x": "obj" is not extensible'
-slug: Web/JavaScript/Reference/Fehler/Cant_define_property_object_not_extensible
+slug: Web/JavaScript/Reference/Errors/Cant_define_property_object_not_extensible
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Cant_define_property_object_not_extensible
+original_slug: Web/JavaScript/Reference/Fehler/Cant_define_property_object_not_extensible
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/cant_delete/index.html b/files/de/web/javascript/reference/errors/cant_delete/index.html
index fe09735071..4dcbec6536 100644
--- a/files/de/web/javascript/reference/fehler/cant_delete/index.html
+++ b/files/de/web/javascript/reference/errors/cant_delete/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: property "x" is non-configurable and can''t be deleted'
-slug: Web/JavaScript/Reference/Fehler/Cant_delete
+slug: Web/JavaScript/Reference/Errors/Cant_delete
 tags:
   - Errors
   - JavaScript
   - Strict Mode
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Cant_delete
+original_slug: Web/JavaScript/Reference/Fehler/Cant_delete
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/cant_redefine_property/index.html b/files/de/web/javascript/reference/errors/cant_redefine_property/index.html
index 80ef1e384b..e493cf99fc 100644
--- a/files/de/web/javascript/reference/fehler/cant_redefine_property/index.html
+++ b/files/de/web/javascript/reference/errors/cant_redefine_property/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: can''t redefine non-configurable property "x"'
-slug: Web/JavaScript/Reference/Fehler/Cant_redefine_property
+slug: Web/JavaScript/Reference/Errors/Cant_redefine_property
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Cant_redefine_property
+original_slug: Web/JavaScript/Reference/Fehler/Cant_redefine_property
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/cyclic_object_value/index.html b/files/de/web/javascript/reference/errors/cyclic_object_value/index.html
index 33bf4d508a..06717fc6b9 100644
--- a/files/de/web/javascript/reference/fehler/cyclic_object_value/index.html
+++ b/files/de/web/javascript/reference/errors/cyclic_object_value/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: cyclic object value'
-slug: Web/JavaScript/Reference/Fehler/Cyclic_object_value
+slug: Web/JavaScript/Reference/Errors/Cyclic_object_value
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Cyclic_object_value
+original_slug: Web/JavaScript/Reference/Fehler/Cyclic_object_value
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/dead_object/index.html b/files/de/web/javascript/reference/errors/dead_object/index.html
index 036e637ef4..0925f87d39 100644
--- a/files/de/web/javascript/reference/fehler/dead_object/index.html
+++ b/files/de/web/javascript/reference/errors/dead_object/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: can''t access dead object'
-slug: Web/JavaScript/Reference/Fehler/Dead_object
+slug: Web/JavaScript/Reference/Errors/Dead_object
 tags:
   - Addon
   - Error
   - Errors
   - JavaScript
 translation_of: Web/JavaScript/Reference/Errors/Dead_object
+original_slug: Web/JavaScript/Reference/Fehler/Dead_object
 ---
 <div>{{JSSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/delete_in_strict_mode/index.html b/files/de/web/javascript/reference/errors/delete_in_strict_mode/index.html
index 042505e066..68d498daa5 100644
--- a/files/de/web/javascript/reference/fehler/delete_in_strict_mode/index.html
+++ b/files/de/web/javascript/reference/errors/delete_in_strict_mode/index.html
@@ -2,13 +2,14 @@
 title: >-
   SyntaxError: applying the 'delete' operator to an unqualified name is
   deprecated
-slug: Web/JavaScript/Reference/Fehler/Delete_in_strict_mode
+slug: Web/JavaScript/Reference/Errors/Delete_in_strict_mode
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Delete_in_strict_mode
+original_slug: Web/JavaScript/Reference/Fehler/Delete_in_strict_mode
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/deprecated_caller_or_arguments_usage/index.html b/files/de/web/javascript/reference/errors/deprecated_caller_or_arguments_usage/index.html
index 15bb0e68b6..6e09f96074 100644
--- a/files/de/web/javascript/reference/fehler/deprecated_caller_or_arguments_usage/index.html
+++ b/files/de/web/javascript/reference/errors/deprecated_caller_or_arguments_usage/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'ReferenceError: deprecated caller or arguments usage'
-slug: Web/JavaScript/Reference/Fehler/Deprecated_caller_or_arguments_usage
+slug: Web/JavaScript/Reference/Errors/Deprecated_caller_or_arguments_usage
 tags:
   - Errors
   - JavaScript
   - Strict Mode
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Deprecated_caller_or_arguments_usage
+original_slug: Web/JavaScript/Reference/Fehler/Deprecated_caller_or_arguments_usage
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/deprecated_expression_closures/index.html b/files/de/web/javascript/reference/errors/deprecated_expression_closures/index.html
index b8c6e7ced8..eee9cb15dd 100644
--- a/files/de/web/javascript/reference/fehler/deprecated_expression_closures/index.html
+++ b/files/de/web/javascript/reference/errors/deprecated_expression_closures/index.html
@@ -1,10 +1,11 @@
 ---
 title: 'Warning: expression closures are deprecated'
-slug: Web/JavaScript/Reference/Fehler/Deprecated_expression_closures
+slug: Web/JavaScript/Reference/Errors/Deprecated_expression_closures
 tags:
   - JavaScript
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Deprecated_expression_closures
+original_slug: Web/JavaScript/Reference/Fehler/Deprecated_expression_closures
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/deprecated_octal/index.html b/files/de/web/javascript/reference/errors/deprecated_octal/index.html
index e153038950..8e67938033 100644
--- a/files/de/web/javascript/reference/fehler/deprecated_octal/index.html
+++ b/files/de/web/javascript/reference/errors/deprecated_octal/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: "0"-prefixed octal literals and octal escape seq. are deprecated'
-slug: Web/JavaScript/Reference/Fehler/Deprecated_octal
+slug: Web/JavaScript/Reference/Errors/Deprecated_octal
 tags:
   - Error
   - JavaScript
   - Strict Mode
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Deprecated_octal
+original_slug: Web/JavaScript/Reference/Fehler/Deprecated_octal
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/deprecated_source_map_pragma/index.html b/files/de/web/javascript/reference/errors/deprecated_source_map_pragma/index.html
index 1f87b2bd2d..380ab5507b 100644
--- a/files/de/web/javascript/reference/fehler/deprecated_source_map_pragma/index.html
+++ b/files/de/web/javascript/reference/errors/deprecated_source_map_pragma/index.html
@@ -2,12 +2,13 @@
 title: >-
   SyntaxError: Using //@ to indicate sourceURL pragmas is deprecated. Use //#
   instead
-slug: Web/JavaScript/Reference/Fehler/Deprecated_source_map_pragma
+slug: Web/JavaScript/Reference/Errors/Deprecated_source_map_pragma
 tags:
   - Errors
   - JavaScript
   - Source maps
 translation_of: Web/JavaScript/Reference/Errors/Deprecated_source_map_pragma
+original_slug: Web/JavaScript/Reference/Fehler/Deprecated_source_map_pragma
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/deprecated_string_generics/index.html b/files/de/web/javascript/reference/errors/deprecated_string_generics/index.html
index d495448759..b41254150e 100644
--- a/files/de/web/javascript/reference/fehler/deprecated_string_generics/index.html
+++ b/files/de/web/javascript/reference/errors/deprecated_string_generics/index.html
@@ -1,10 +1,11 @@
 ---
 title: 'Warning: String.x is deprecated; use String.prototype.x instead'
-slug: Web/JavaScript/Reference/Fehler/Deprecated_String_generics
+slug: Web/JavaScript/Reference/Errors/Deprecated_String_generics
 tags:
   - JavaScript
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Deprecated_String_generics
+original_slug: Web/JavaScript/Reference/Fehler/Deprecated_String_generics
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/deprecated_tolocaleformat/index.html b/files/de/web/javascript/reference/errors/deprecated_tolocaleformat/index.html
index 31cc81d9cc..32ae0382d3 100644
--- a/files/de/web/javascript/reference/fehler/deprecated_tolocaleformat/index.html
+++ b/files/de/web/javascript/reference/errors/deprecated_tolocaleformat/index.html
@@ -1,10 +1,11 @@
 ---
 title: 'Warning: Date.prototype.toLocaleFormat is deprecated'
-slug: Web/JavaScript/Reference/Fehler/Deprecated_toLocaleFormat
+slug: Web/JavaScript/Reference/Errors/Deprecated_toLocaleFormat
 tags:
   - JavaScript
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Deprecated_toLocaleFormat
+original_slug: Web/JavaScript/Reference/Fehler/Deprecated_toLocaleFormat
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/equal_as_assign/index.html b/files/de/web/javascript/reference/errors/equal_as_assign/index.html
index dbe5e55b02..3df46b90f0 100644
--- a/files/de/web/javascript/reference/fehler/equal_as_assign/index.html
+++ b/files/de/web/javascript/reference/errors/equal_as_assign/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: test for equality (==) mistyped as assignment (=)?'
-slug: Web/JavaScript/Reference/Fehler/Equal_as_assign
+slug: Web/JavaScript/Reference/Errors/Equal_as_assign
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Equal_as_assign
+original_slug: Web/JavaScript/Reference/Fehler/Equal_as_assign
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/for-each-in_loops_are_deprecated/index.html b/files/de/web/javascript/reference/errors/for-each-in_loops_are_deprecated/index.html
index 2651ea45ba..871ec8f106 100644
--- a/files/de/web/javascript/reference/fehler/for-each-in_loops_are_deprecated/index.html
+++ b/files/de/web/javascript/reference/errors/for-each-in_loops_are_deprecated/index.html
@@ -1,10 +1,11 @@
 ---
 title: 'Warning: JavaScript 1.6''s for-each-in loops are deprecated'
-slug: Web/JavaScript/Reference/Fehler/For-each-in_loops_are_deprecated
+slug: Web/JavaScript/Reference/Errors/For-each-in_loops_are_deprecated
 tags:
   - JavaScript
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/For-each-in_loops_are_deprecated
+original_slug: Web/JavaScript/Reference/Fehler/For-each-in_loops_are_deprecated
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/getter_only/index.html b/files/de/web/javascript/reference/errors/getter_only/index.html
index 268ee0cbf1..709490012c 100644
--- a/files/de/web/javascript/reference/fehler/getter_only/index.html
+++ b/files/de/web/javascript/reference/errors/getter_only/index.html
@@ -1,6 +1,6 @@
 ---
 title: 'TypeError: setting getter-only property "x"'
-slug: Web/JavaScript/Reference/Fehler/Getter_only
+slug: Web/JavaScript/Reference/Errors/Getter_only
 tags:
   - Error
   - Errors
@@ -8,6 +8,7 @@ tags:
   - Strict Mode
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Getter_only
+original_slug: Web/JavaScript/Reference/Fehler/Getter_only
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/identifier_after_number/index.html b/files/de/web/javascript/reference/errors/identifier_after_number/index.html
index 64cb9cdfe3..b541d40ed2 100644
--- a/files/de/web/javascript/reference/fehler/identifier_after_number/index.html
+++ b/files/de/web/javascript/reference/errors/identifier_after_number/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: identifier starts immediately after numeric literal'
-slug: Web/JavaScript/Reference/Fehler/Identifier_after_number
+slug: Web/JavaScript/Reference/Errors/Identifier_after_number
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Identifier_after_number
+original_slug: Web/JavaScript/Reference/Fehler/Identifier_after_number
 ---
 <div>{{JSSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/illegal_character/index.html b/files/de/web/javascript/reference/errors/illegal_character/index.html
index e0c083022c..1b4c735f2e 100644
--- a/files/de/web/javascript/reference/fehler/illegal_character/index.html
+++ b/files/de/web/javascript/reference/errors/illegal_character/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: illegal character'
-slug: Web/JavaScript/Reference/Fehler/Illegal_character
+slug: Web/JavaScript/Reference/Errors/Illegal_character
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Illegal_character
+original_slug: Web/JavaScript/Reference/Fehler/Illegal_character
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/in_operator_no_object/index.html b/files/de/web/javascript/reference/errors/in_operator_no_object/index.html
index 6bace66437..f2b63188a6 100644
--- a/files/de/web/javascript/reference/fehler/in_operator_no_object/index.html
+++ b/files/de/web/javascript/reference/errors/in_operator_no_object/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: cannot use ''in'' operator to search for ''x'' in ''y'''
-slug: Web/JavaScript/Reference/Fehler/in_operator_no_object
+slug: Web/JavaScript/Reference/Errors/in_operator_no_object
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/in_operator_no_object
+original_slug: Web/JavaScript/Reference/Fehler/in_operator_no_object
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/index.html b/files/de/web/javascript/reference/errors/index.html
index 67809031e7..4db2dbf2a5 100644
--- a/files/de/web/javascript/reference/fehler/index.html
+++ b/files/de/web/javascript/reference/errors/index.html
@@ -1,6 +1,6 @@
 ---
 title: JavaScript Fehler Referenz
-slug: Web/JavaScript/Reference/Fehler
+slug: Web/JavaScript/Reference/Errors
 tags:
   - Debugging
   - Error
@@ -9,6 +9,7 @@ tags:
   - JavaScript
   - exceptions
 translation_of: Web/JavaScript/Reference/Errors
+original_slug: Web/JavaScript/Reference/Fehler
 ---
 <p>{{jsSidebar("Errors")}}</p>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_array_length/index.html b/files/de/web/javascript/reference/errors/invalid_array_length/index.html
index 34edeb2969..002c0f1214 100644
--- a/files/de/web/javascript/reference/fehler/invalid_array_length/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_array_length/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: invalid array length'
-slug: Web/JavaScript/Reference/Fehler/Invalid_array_length
+slug: Web/JavaScript/Reference/Errors/Invalid_array_length
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Invalid_array_length
+original_slug: Web/JavaScript/Reference/Fehler/Invalid_array_length
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_assignment_left-hand_side/index.html b/files/de/web/javascript/reference/errors/invalid_assignment_left-hand_side/index.html
index 6e727fb9a2..0e8e79f5e6 100644
--- a/files/de/web/javascript/reference/fehler/invalid_assignment_left-hand_side/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_assignment_left-hand_side/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'ReferenceError: invalid assignment left-hand side'
-slug: Web/JavaScript/Reference/Fehler/Invalid_assignment_left-hand_side
+slug: Web/JavaScript/Reference/Errors/Invalid_assignment_left-hand_side
 tags:
   - Errors
   - JavaScript
   - ReferenceError
 translation_of: Web/JavaScript/Reference/Errors/Invalid_assignment_left-hand_side
+original_slug: Web/JavaScript/Reference/Fehler/Invalid_assignment_left-hand_side
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_const_assignment/index.html b/files/de/web/javascript/reference/errors/invalid_const_assignment/index.html
index 812577360a..8b2a52c36d 100644
--- a/files/de/web/javascript/reference/fehler/invalid_const_assignment/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_const_assignment/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: invalid assignment to const "x"'
-slug: Web/JavaScript/Reference/Fehler/Invalid_const_assignment
+slug: Web/JavaScript/Reference/Errors/Invalid_const_assignment
 tags:
   - Error
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Invalid_const_assignment
+original_slug: Web/JavaScript/Reference/Fehler/Invalid_const_assignment
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_date/index.html b/files/de/web/javascript/reference/errors/invalid_date/index.html
index 04954fe28f..cd5a75f969 100644
--- a/files/de/web/javascript/reference/fehler/invalid_date/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_date/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: invalid date'
-slug: Web/JavaScript/Reference/Fehler/Invalid_date
+slug: Web/JavaScript/Reference/Errors/Invalid_date
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Invalid_date
+original_slug: Web/JavaScript/Reference/Fehler/Invalid_date
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_for-in_initializer/index.html b/files/de/web/javascript/reference/errors/invalid_for-in_initializer/index.html
index bc4bf80c70..497f30fa3e 100644
--- a/files/de/web/javascript/reference/fehler/invalid_for-in_initializer/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_for-in_initializer/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: for-in loop head declarations may not have initializers'
-slug: Web/JavaScript/Reference/Fehler/Invalid_for-in_initializer
+slug: Web/JavaScript/Reference/Errors/Invalid_for-in_initializer
 tags:
   - Error
   - JavaScript
   - Strict Mode
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Invalid_for-in_initializer
+original_slug: Web/JavaScript/Reference/Fehler/Invalid_for-in_initializer
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_for-of_initializer/index.html b/files/de/web/javascript/reference/errors/invalid_for-of_initializer/index.html
index 3270387357..5e5abead7d 100644
--- a/files/de/web/javascript/reference/fehler/invalid_for-of_initializer/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_for-of_initializer/index.html
@@ -2,12 +2,13 @@
 title: >-
   SyntaxError: a declaration in the head of a for-of loop can't have an
   initializer
-slug: Web/JavaScript/Reference/Fehler/Invalid_for-of_initializer
+slug: Web/JavaScript/Reference/Errors/Invalid_for-of_initializer
 tags:
   - Error
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Invalid_for-of_initializer
+original_slug: Web/JavaScript/Reference/Fehler/Invalid_for-of_initializer
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/invalid_right_hand_side_instanceof_operand/index.html b/files/de/web/javascript/reference/errors/invalid_right_hand_side_instanceof_operand/index.html
index 771838b428..45e7fb3cac 100644
--- a/files/de/web/javascript/reference/fehler/invalid_right_hand_side_instanceof_operand/index.html
+++ b/files/de/web/javascript/reference/errors/invalid_right_hand_side_instanceof_operand/index.html
@@ -1,6 +1,6 @@
 ---
 title: 'TypeError: invalid ''instanceof'' operand ''x'''
-slug: Web/JavaScript/Reference/Fehler/invalid_right_hand_side_instanceof_operand
+slug: Web/JavaScript/Reference/Errors/invalid_right_hand_side_instanceof_operand
 tags:
   - Error
   - Errors
@@ -8,6 +8,7 @@ tags:
   - Reference
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/invalid_right_hand_side_instanceof_operand
+original_slug: Web/JavaScript/Reference/Fehler/invalid_right_hand_side_instanceof_operand
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/is_not_iterable/index.html b/files/de/web/javascript/reference/errors/is_not_iterable/index.html
index 21460882c7..d1a42abf9c 100644
--- a/files/de/web/javascript/reference/fehler/is_not_iterable/index.html
+++ b/files/de/web/javascript/reference/errors/is_not_iterable/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: ''x'' is not iterable'
-slug: Web/JavaScript/Reference/Fehler/is_not_iterable
+slug: Web/JavaScript/Reference/Errors/is_not_iterable
 tags:
   - Error
   - JavaScript
   - Reference
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/is_not_iterable
+original_slug: Web/JavaScript/Reference/Fehler/is_not_iterable
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/json_bad_parse/index.html b/files/de/web/javascript/reference/errors/json_bad_parse/index.html
index 0aa5e6bdae..17e4f53615 100644
--- a/files/de/web/javascript/reference/fehler/json_bad_parse/index.html
+++ b/files/de/web/javascript/reference/errors/json_bad_parse/index.html
@@ -1,6 +1,6 @@
 ---
 title: 'SyntaxError: JSON.parse: bad parsing'
-slug: Web/JavaScript/Reference/Fehler/JSON_bad_parse
+slug: Web/JavaScript/Reference/Errors/JSON_bad_parse
 tags:
   - Errors
   - JSON
@@ -9,6 +9,7 @@ tags:
   - Property
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/JSON_bad_parse
+original_slug: Web/JavaScript/Reference/Fehler/JSON_bad_parse
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/malformed_formal_parameter/index.html b/files/de/web/javascript/reference/errors/malformed_formal_parameter/index.html
index 65a89bb84a..8ba3b06c1e 100644
--- a/files/de/web/javascript/reference/fehler/malformed_formal_parameter/index.html
+++ b/files/de/web/javascript/reference/errors/malformed_formal_parameter/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: Malformed formal parameter'
-slug: Web/JavaScript/Reference/Fehler/Malformed_formal_parameter
+slug: Web/JavaScript/Reference/Errors/Malformed_formal_parameter
 tags:
   - Error
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Malformed_formal_parameter
+original_slug: Web/JavaScript/Reference/Fehler/Malformed_formal_parameter
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/malformed_uri/index.html b/files/de/web/javascript/reference/errors/malformed_uri/index.html
index cf831aa4a6..c26bc37c20 100644
--- a/files/de/web/javascript/reference/fehler/malformed_uri/index.html
+++ b/files/de/web/javascript/reference/errors/malformed_uri/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'URIError: malformed URI sequence'
-slug: Web/JavaScript/Reference/Fehler/Malformed_URI
+slug: Web/JavaScript/Reference/Errors/Malformed_URI
 tags:
   - Error
   - Errors
   - JavaScript
   - URIError
 translation_of: Web/JavaScript/Reference/Errors/Malformed_URI
+original_slug: Web/JavaScript/Reference/Fehler/Malformed_URI
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_bracket_after_list/index.html b/files/de/web/javascript/reference/errors/missing_bracket_after_list/index.html
index b5fe14ae14..0c34bae3fc 100644
--- a/files/de/web/javascript/reference/fehler/missing_bracket_after_list/index.html
+++ b/files/de/web/javascript/reference/errors/missing_bracket_after_list/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: missing ] after element list'
-slug: Web/JavaScript/Reference/Fehler/Missing_bracket_after_list
+slug: Web/JavaScript/Reference/Errors/Missing_bracket_after_list
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_bracket_after_list
+original_slug: Web/JavaScript/Reference/Fehler/Missing_bracket_after_list
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_colon_after_property_id/index.html b/files/de/web/javascript/reference/errors/missing_colon_after_property_id/index.html
index 26d515a018..f1691f9461 100644
--- a/files/de/web/javascript/reference/fehler/missing_colon_after_property_id/index.html
+++ b/files/de/web/javascript/reference/errors/missing_colon_after_property_id/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: missing : after property id'
-slug: Web/JavaScript/Reference/Fehler/Missing_colon_after_property_id
+slug: Web/JavaScript/Reference/Errors/Missing_colon_after_property_id
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_colon_after_property_id
+original_slug: Web/JavaScript/Reference/Fehler/Missing_colon_after_property_id
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_curly_after_function_body/index.html b/files/de/web/javascript/reference/errors/missing_curly_after_function_body/index.html
index b5e0239a2f..03cfcf2930 100644
--- a/files/de/web/javascript/reference/fehler/missing_curly_after_function_body/index.html
+++ b/files/de/web/javascript/reference/errors/missing_curly_after_function_body/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: missing } after function body'
-slug: Web/JavaScript/Reference/Fehler/Missing_curly_after_function_body
+slug: Web/JavaScript/Reference/Errors/Missing_curly_after_function_body
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_curly_after_function_body
+original_slug: Web/JavaScript/Reference/Fehler/Missing_curly_after_function_body
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_curly_after_property_list/index.html b/files/de/web/javascript/reference/errors/missing_curly_after_property_list/index.html
index 41a82a9158..ea58232fcf 100644
--- a/files/de/web/javascript/reference/fehler/missing_curly_after_property_list/index.html
+++ b/files/de/web/javascript/reference/errors/missing_curly_after_property_list/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: missing } after property list'
-slug: Web/JavaScript/Reference/Fehler/Missing_curly_after_property_list
+slug: Web/JavaScript/Reference/Errors/Missing_curly_after_property_list
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_curly_after_property_list
+original_slug: Web/JavaScript/Reference/Fehler/Missing_curly_after_property_list
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_formal_parameter/index.html b/files/de/web/javascript/reference/errors/missing_formal_parameter/index.html
index 19813f9c47..c520773f9e 100644
--- a/files/de/web/javascript/reference/fehler/missing_formal_parameter/index.html
+++ b/files/de/web/javascript/reference/errors/missing_formal_parameter/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: missing formal parameter'
-slug: Web/JavaScript/Reference/Fehler/Missing_formal_parameter
+slug: Web/JavaScript/Reference/Errors/Missing_formal_parameter
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_formal_parameter
+original_slug: Web/JavaScript/Reference/Fehler/Missing_formal_parameter
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_initializer_in_const/index.html b/files/de/web/javascript/reference/errors/missing_initializer_in_const/index.html
index 49db779546..30f9c8ead1 100644
--- a/files/de/web/javascript/reference/fehler/missing_initializer_in_const/index.html
+++ b/files/de/web/javascript/reference/errors/missing_initializer_in_const/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: missing = in const declaration'
-slug: Web/JavaScript/Reference/Fehler/Missing_initializer_in_const
+slug: Web/JavaScript/Reference/Errors/Missing_initializer_in_const
 tags:
   - Error
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_initializer_in_const
+original_slug: Web/JavaScript/Reference/Fehler/Missing_initializer_in_const
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_name_after_dot_operator/index.html b/files/de/web/javascript/reference/errors/missing_name_after_dot_operator/index.html
index cb79bdcc03..d4e34749c0 100644
--- a/files/de/web/javascript/reference/fehler/missing_name_after_dot_operator/index.html
+++ b/files/de/web/javascript/reference/errors/missing_name_after_dot_operator/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: missing name after . operator'
-slug: Web/JavaScript/Reference/Fehler/Missing_name_after_dot_operator
+slug: Web/JavaScript/Reference/Errors/Missing_name_after_dot_operator
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_name_after_dot_operator
+original_slug: Web/JavaScript/Reference/Fehler/Missing_name_after_dot_operator
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_parenthesis_after_argument_list/index.html b/files/de/web/javascript/reference/errors/missing_parenthesis_after_argument_list/index.html
index a3da4b9edf..7fc8a953bd 100644
--- a/files/de/web/javascript/reference/fehler/missing_parenthesis_after_argument_list/index.html
+++ b/files/de/web/javascript/reference/errors/missing_parenthesis_after_argument_list/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: missing ) after argument list'
-slug: Web/JavaScript/Reference/Fehler/Missing_parenthesis_after_argument_list
+slug: Web/JavaScript/Reference/Errors/Missing_parenthesis_after_argument_list
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_parenthesis_after_argument_list
+original_slug: Web/JavaScript/Reference/Fehler/Missing_parenthesis_after_argument_list
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_parenthesis_after_condition/index.html b/files/de/web/javascript/reference/errors/missing_parenthesis_after_condition/index.html
index 295428a5b9..0946c8f3f7 100644
--- a/files/de/web/javascript/reference/fehler/missing_parenthesis_after_condition/index.html
+++ b/files/de/web/javascript/reference/errors/missing_parenthesis_after_condition/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: missing ) after condition'
-slug: Web/JavaScript/Reference/Fehler/Missing_parenthesis_after_condition
+slug: Web/JavaScript/Reference/Errors/Missing_parenthesis_after_condition
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_parenthesis_after_condition
+original_slug: Web/JavaScript/Reference/Fehler/Missing_parenthesis_after_condition
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/missing_semicolon_before_statement/index.html b/files/de/web/javascript/reference/errors/missing_semicolon_before_statement/index.html
index dcdf35ed94..5425efd490 100644
--- a/files/de/web/javascript/reference/fehler/missing_semicolon_before_statement/index.html
+++ b/files/de/web/javascript/reference/errors/missing_semicolon_before_statement/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: missing ; before statement'
-slug: Web/JavaScript/Reference/Fehler/Missing_semicolon_before_statement
+slug: Web/JavaScript/Reference/Errors/Missing_semicolon_before_statement
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Missing_semicolon_before_statement
+original_slug: Web/JavaScript/Reference/Fehler/Missing_semicolon_before_statement
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/more_arguments_needed/index.html b/files/de/web/javascript/reference/errors/more_arguments_needed/index.html
index 3707c5446f..43ba1f0af4 100644
--- a/files/de/web/javascript/reference/fehler/more_arguments_needed/index.html
+++ b/files/de/web/javascript/reference/errors/more_arguments_needed/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: More arguments needed'
-slug: Web/JavaScript/Reference/Fehler/More_arguments_needed
+slug: Web/JavaScript/Reference/Errors/More_arguments_needed
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/More_arguments_needed
+original_slug: Web/JavaScript/Reference/Fehler/More_arguments_needed
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/negative_repetition_count/index.html b/files/de/web/javascript/reference/errors/negative_repetition_count/index.html
index 53c153453f..a90f31e9d4 100644
--- a/files/de/web/javascript/reference/fehler/negative_repetition_count/index.html
+++ b/files/de/web/javascript/reference/errors/negative_repetition_count/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: repeat count must be non-negative'
-slug: Web/JavaScript/Reference/Fehler/Negative_repetition_count
+slug: Web/JavaScript/Reference/Errors/Negative_repetition_count
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Negative_repetition_count
+original_slug: Web/JavaScript/Reference/Fehler/Negative_repetition_count
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/no_non-null_object/index.html b/files/de/web/javascript/reference/errors/no_non-null_object/index.html
index a2c897c5cd..41be7379df 100644
--- a/files/de/web/javascript/reference/fehler/no_non-null_object/index.html
+++ b/files/de/web/javascript/reference/errors/no_non-null_object/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: "x" is not a non-null object'
-slug: Web/JavaScript/Reference/Fehler/No_non-null_object
+slug: Web/JavaScript/Reference/Errors/No_non-null_object
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/No_non-null_object
+original_slug: Web/JavaScript/Reference/Fehler/No_non-null_object
 ---
 <div>{{JSSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/no_properties/index.html b/files/de/web/javascript/reference/errors/no_properties/index.html
index d5dc0328b6..0897961a8e 100644
--- a/files/de/web/javascript/reference/fehler/no_properties/index.html
+++ b/files/de/web/javascript/reference/errors/no_properties/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: "x" has no properties'
-slug: Web/JavaScript/Reference/Fehler/No_properties
+slug: Web/JavaScript/Reference/Errors/No_properties
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/No_properties
+original_slug: Web/JavaScript/Reference/Fehler/No_properties
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/no_variable_name/index.html b/files/de/web/javascript/reference/errors/no_variable_name/index.html
index a3b63df55d..cd5e7fa698 100644
--- a/files/de/web/javascript/reference/fehler/no_variable_name/index.html
+++ b/files/de/web/javascript/reference/errors/no_variable_name/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: missing variable name'
-slug: Web/JavaScript/Reference/Fehler/No_variable_name
+slug: Web/JavaScript/Reference/Errors/No_variable_name
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/No_variable_name
+original_slug: Web/JavaScript/Reference/Fehler/No_variable_name
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/non_configurable_array_element/index.html b/files/de/web/javascript/reference/errors/non_configurable_array_element/index.html
index 771f480dda..0b3cea9e27 100644
--- a/files/de/web/javascript/reference/fehler/non_configurable_array_element/index.html
+++ b/files/de/web/javascript/reference/errors/non_configurable_array_element/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: can''t delete non-configurable array element'
-slug: Web/JavaScript/Reference/Fehler/Non_configurable_array_element
+slug: Web/JavaScript/Reference/Errors/Non_configurable_array_element
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Non_configurable_array_element
+original_slug: Web/JavaScript/Reference/Fehler/Non_configurable_array_element
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/not_a_codepoint/index.html b/files/de/web/javascript/reference/errors/not_a_codepoint/index.html
index 8d72c3be4b..544317daf1 100644
--- a/files/de/web/javascript/reference/fehler/not_a_codepoint/index.html
+++ b/files/de/web/javascript/reference/errors/not_a_codepoint/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: argument is not a valid code point'
-slug: Web/JavaScript/Reference/Fehler/Not_a_codepoint
+slug: Web/JavaScript/Reference/Errors/Not_a_codepoint
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Not_a_codepoint
+original_slug: Web/JavaScript/Reference/Fehler/Not_a_codepoint
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/not_a_constructor/index.html b/files/de/web/javascript/reference/errors/not_a_constructor/index.html
index 42858cf706..2768a87600 100644
--- a/files/de/web/javascript/reference/fehler/not_a_constructor/index.html
+++ b/files/de/web/javascript/reference/errors/not_a_constructor/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: "x" is not a constructor'
-slug: Web/JavaScript/Reference/Fehler/Not_a_constructor
+slug: Web/JavaScript/Reference/Errors/Not_a_constructor
 tags:
   - Fehler
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Not_a_constructor
+original_slug: Web/JavaScript/Reference/Fehler/Not_a_constructor
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/not_a_function/index.html b/files/de/web/javascript/reference/errors/not_a_function/index.html
index a8b66dff17..8a46ca4b60 100644
--- a/files/de/web/javascript/reference/fehler/not_a_function/index.html
+++ b/files/de/web/javascript/reference/errors/not_a_function/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: "x" is not a function'
-slug: Web/JavaScript/Reference/Fehler/Not_a_function
+slug: Web/JavaScript/Reference/Errors/Not_a_function
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Not_a_function
+original_slug: Web/JavaScript/Reference/Fehler/Not_a_function
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/not_defined/index.html b/files/de/web/javascript/reference/errors/not_defined/index.html
index 030c47536b..17556650c7 100644
--- a/files/de/web/javascript/reference/fehler/not_defined/index.html
+++ b/files/de/web/javascript/reference/errors/not_defined/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'ReferenceError: "x" is not defined'
-slug: Web/JavaScript/Reference/Fehler/Not_defined
+slug: Web/JavaScript/Reference/Errors/Not_defined
 tags:
   - Error
   - JavaScript
   - ReferenceError
 translation_of: Web/JavaScript/Reference/Errors/Not_defined
+original_slug: Web/JavaScript/Reference/Fehler/Not_defined
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/precision_range/index.html b/files/de/web/javascript/reference/errors/precision_range/index.html
index d03b4203c5..43e8210a44 100644
--- a/files/de/web/javascript/reference/fehler/precision_range/index.html
+++ b/files/de/web/javascript/reference/errors/precision_range/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: precision is out of range'
-slug: Web/JavaScript/Reference/Fehler/Precision_range
+slug: Web/JavaScript/Reference/Errors/Precision_range
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Precision_range
+original_slug: Web/JavaScript/Reference/Fehler/Precision_range
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/property_access_denied/index.html b/files/de/web/javascript/reference/errors/property_access_denied/index.html
index d4feb4feb7..94871832ef 100644
--- a/files/de/web/javascript/reference/fehler/property_access_denied/index.html
+++ b/files/de/web/javascript/reference/errors/property_access_denied/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'Error: Permission denied to access property "x"'
-slug: Web/JavaScript/Reference/Fehler/Property_access_denied
+slug: Web/JavaScript/Reference/Errors/Property_access_denied
 tags:
   - Error
   - Errors
   - JavaScript
   - Security
 translation_of: Web/JavaScript/Reference/Errors/Property_access_denied
+original_slug: Web/JavaScript/Reference/Fehler/Property_access_denied
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/read-only/index.html b/files/de/web/javascript/reference/errors/read-only/index.html
index bb56305880..76a7d79e27 100644
--- a/files/de/web/javascript/reference/fehler/read-only/index.html
+++ b/files/de/web/javascript/reference/errors/read-only/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: "x" is read-only'
-slug: Web/JavaScript/Reference/Fehler/Read-only
+slug: Web/JavaScript/Reference/Errors/Read-only
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Read-only
+original_slug: Web/JavaScript/Reference/Fehler/Read-only
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/redeclared_parameter/index.html b/files/de/web/javascript/reference/errors/redeclared_parameter/index.html
index e80836e50f..c13f2ec181 100644
--- a/files/de/web/javascript/reference/fehler/redeclared_parameter/index.html
+++ b/files/de/web/javascript/reference/errors/redeclared_parameter/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: redeclaration of formal parameter "x"'
-slug: Web/JavaScript/Reference/Fehler/Redeclared_parameter
+slug: Web/JavaScript/Reference/Errors/Redeclared_parameter
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Redeclared_parameter
+original_slug: Web/JavaScript/Reference/Fehler/Redeclared_parameter
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/reduce_of_empty_array_with_no_initial_value/index.html b/files/de/web/javascript/reference/errors/reduce_of_empty_array_with_no_initial_value/index.html
index a1a9a43748..3f0ac84872 100644
--- a/files/de/web/javascript/reference/fehler/reduce_of_empty_array_with_no_initial_value/index.html
+++ b/files/de/web/javascript/reference/errors/reduce_of_empty_array_with_no_initial_value/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: Reduce of empty array with no initial value'
-slug: Web/JavaScript/Reference/Fehler/Reduce_of_empty_array_with_no_initial_value
+slug: Web/JavaScript/Reference/Errors/Reduce_of_empty_array_with_no_initial_value
 tags:
   - Error
   - JavaScript
   - Reference
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Reduce_of_empty_array_with_no_initial_value
+original_slug: Web/JavaScript/Reference/Fehler/Reduce_of_empty_array_with_no_initial_value
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/reserved_identifier/index.html b/files/de/web/javascript/reference/errors/reserved_identifier/index.html
index a483f4cd1a..a5bb87f6ba 100644
--- a/files/de/web/javascript/reference/fehler/reserved_identifier/index.html
+++ b/files/de/web/javascript/reference/errors/reserved_identifier/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: "x" is a reserved identifier'
-slug: Web/JavaScript/Reference/Fehler/Reserved_identifier
+slug: Web/JavaScript/Reference/Errors/Reserved_identifier
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Reserved_identifier
+original_slug: Web/JavaScript/Reference/Fehler/Reserved_identifier
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/resulting_string_too_large/index.html b/files/de/web/javascript/reference/errors/resulting_string_too_large/index.html
index e3f0246d13..d2c4235e61 100644
--- a/files/de/web/javascript/reference/fehler/resulting_string_too_large/index.html
+++ b/files/de/web/javascript/reference/errors/resulting_string_too_large/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'RangeError: repeat count must be less than infinity'
-slug: Web/JavaScript/Reference/Fehler/Resulting_string_too_large
+slug: Web/JavaScript/Reference/Errors/Resulting_string_too_large
 tags:
   - Errors
   - JavaScript
   - RangeError
 translation_of: Web/JavaScript/Reference/Errors/Resulting_string_too_large
+original_slug: Web/JavaScript/Reference/Fehler/Resulting_string_too_large
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/stmt_after_return/index.html b/files/de/web/javascript/reference/errors/stmt_after_return/index.html
index be395c3b83..fc249d251a 100644
--- a/files/de/web/javascript/reference/fehler/stmt_after_return/index.html
+++ b/files/de/web/javascript/reference/errors/stmt_after_return/index.html
@@ -1,10 +1,11 @@
 ---
 title: 'Warning: unreachable code after return statement'
-slug: Web/JavaScript/Reference/Fehler/Stmt_after_return
+slug: Web/JavaScript/Reference/Errors/Stmt_after_return
 tags:
   - JavaScript
   - Warning
 translation_of: Web/JavaScript/Reference/Errors/Stmt_after_return
+original_slug: Web/JavaScript/Reference/Fehler/Stmt_after_return
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/strict_non_simple_params/index.html b/files/de/web/javascript/reference/errors/strict_non_simple_params/index.html
index a288a81a10..285ae0b7e7 100644
--- a/files/de/web/javascript/reference/fehler/strict_non_simple_params/index.html
+++ b/files/de/web/javascript/reference/errors/strict_non_simple_params/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: "use strict" not allowed in function with non-simple parameters'
-slug: Web/JavaScript/Reference/Fehler/Strict_Non_Simple_Params
+slug: Web/JavaScript/Reference/Errors/Strict_Non_Simple_Params
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Strict_Non_Simple_Params
+original_slug: Web/JavaScript/Reference/Fehler/Strict_Non_Simple_Params
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/too_much_recursion/index.html b/files/de/web/javascript/reference/errors/too_much_recursion/index.html
index 0010afd90a..642af53a47 100644
--- a/files/de/web/javascript/reference/fehler/too_much_recursion/index.html
+++ b/files/de/web/javascript/reference/errors/too_much_recursion/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'InternalError: too much recursion'
-slug: Web/JavaScript/Reference/Fehler/Too_much_recursion
+slug: Web/JavaScript/Reference/Errors/Too_much_recursion
 tags:
   - Errors
   - InternalError
   - JavaScript
 translation_of: Web/JavaScript/Reference/Errors/Too_much_recursion
+original_slug: Web/JavaScript/Reference/Fehler/Too_much_recursion
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/typed_array_invalid_arguments/index.html b/files/de/web/javascript/reference/errors/typed_array_invalid_arguments/index.html
index 2e7fa8f0b3..b6621776e6 100644
--- a/files/de/web/javascript/reference/fehler/typed_array_invalid_arguments/index.html
+++ b/files/de/web/javascript/reference/errors/typed_array_invalid_arguments/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: invalid arguments'
-slug: Web/JavaScript/Reference/Fehler/Typed_array_invalid_arguments
+slug: Web/JavaScript/Reference/Errors/Typed_array_invalid_arguments
 tags:
   - Error
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Typed_array_invalid_arguments
+original_slug: Web/JavaScript/Reference/Fehler/Typed_array_invalid_arguments
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/undeclared_var/index.html b/files/de/web/javascript/reference/errors/undeclared_var/index.html
index b7c8b09165..3a981a006d 100644
--- a/files/de/web/javascript/reference/fehler/undeclared_var/index.html
+++ b/files/de/web/javascript/reference/errors/undeclared_var/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'ReferenceError: assignment to undeclared variable "x"'
-slug: Web/JavaScript/Reference/Fehler/Undeclared_var
+slug: Web/JavaScript/Reference/Errors/Undeclared_var
 tags:
   - Errors
   - JavaScript
   - ReferenceError
   - Strict Mode
 translation_of: Web/JavaScript/Reference/Errors/Undeclared_var
+original_slug: Web/JavaScript/Reference/Fehler/Undeclared_var
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/undefined_prop/index.html b/files/de/web/javascript/reference/errors/undefined_prop/index.html
index fe83564f59..9e63feb77b 100644
--- a/files/de/web/javascript/reference/fehler/undefined_prop/index.html
+++ b/files/de/web/javascript/reference/errors/undefined_prop/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'ReferenceError: reference to undefined property "x"'
-slug: Web/JavaScript/Reference/Fehler/Undefined_prop
+slug: Web/JavaScript/Reference/Errors/Undefined_prop
 tags:
   - Errors
   - JavaScript
   - ReferenceError
   - Strict Mode
 translation_of: Web/JavaScript/Reference/Errors/Undefined_prop
+original_slug: Web/JavaScript/Reference/Fehler/Undefined_prop
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/unexpected_token/index.html b/files/de/web/javascript/reference/errors/unexpected_token/index.html
index 3aff253bfd..6d02ff499d 100644
--- a/files/de/web/javascript/reference/fehler/unexpected_token/index.html
+++ b/files/de/web/javascript/reference/errors/unexpected_token/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: Unexpected token'
-slug: Web/JavaScript/Reference/Fehler/Unexpected_token
+slug: Web/JavaScript/Reference/Errors/Unexpected_token
 tags:
   - Fehler
   - JavaScript
   - Syntaxfehler
 translation_of: Web/JavaScript/Reference/Errors/Unexpected_token
+original_slug: Web/JavaScript/Reference/Fehler/Unexpected_token
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/unexpected_type/index.html b/files/de/web/javascript/reference/errors/unexpected_type/index.html
index 601ec21d43..dccd1b4b6c 100644
--- a/files/de/web/javascript/reference/fehler/unexpected_type/index.html
+++ b/files/de/web/javascript/reference/errors/unexpected_type/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'TypeError: "x" is (not) "y"'
-slug: Web/JavaScript/Reference/Fehler/Unexpected_type
+slug: Web/JavaScript/Reference/Errors/Unexpected_type
 tags:
   - Errors
   - JavaScript
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Unexpected_type
+original_slug: Web/JavaScript/Reference/Fehler/Unexpected_type
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/unnamed_function_statement/index.html b/files/de/web/javascript/reference/errors/unnamed_function_statement/index.html
index 6c148b6ff0..3ceee9d473 100644
--- a/files/de/web/javascript/reference/fehler/unnamed_function_statement/index.html
+++ b/files/de/web/javascript/reference/errors/unnamed_function_statement/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'SyntaxError: function statement requires a name'
-slug: Web/JavaScript/Reference/Fehler/Unnamed_function_statement
+slug: Web/JavaScript/Reference/Errors/Unnamed_function_statement
 tags:
   - Error
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Unnamed_function_statement
+original_slug: Web/JavaScript/Reference/Fehler/Unnamed_function_statement
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/unterminated_string_literal/index.html b/files/de/web/javascript/reference/errors/unterminated_string_literal/index.html
index 3d60240b51..7a03b23ea1 100644
--- a/files/de/web/javascript/reference/fehler/unterminated_string_literal/index.html
+++ b/files/de/web/javascript/reference/errors/unterminated_string_literal/index.html
@@ -1,11 +1,12 @@
 ---
 title: 'SyntaxError: unterminated string literal'
-slug: Web/JavaScript/Reference/Fehler/Unterminated_string_literal
+slug: Web/JavaScript/Reference/Errors/Unterminated_string_literal
 tags:
   - Errors
   - JavaScript
   - SyntaxError
 translation_of: Web/JavaScript/Reference/Errors/Unterminated_string_literal
+original_slug: Web/JavaScript/Reference/Fehler/Unterminated_string_literal
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/fehler/var_hides_argument/index.html b/files/de/web/javascript/reference/errors/var_hides_argument/index.html
index f06a1d5220..b1c84be1d1 100644
--- a/files/de/web/javascript/reference/fehler/var_hides_argument/index.html
+++ b/files/de/web/javascript/reference/errors/var_hides_argument/index.html
@@ -1,12 +1,13 @@
 ---
 title: 'TypeError: variable "x" redeclares argument'
-slug: Web/JavaScript/Reference/Fehler/Var_hides_argument
+slug: Web/JavaScript/Reference/Errors/Var_hides_argument
 tags:
   - Errors
   - JavaScript
   - Strict Mode
   - TypeError
 translation_of: Web/JavaScript/Reference/Errors/Var_hides_argument
+original_slug: Web/JavaScript/Reference/Fehler/Var_hides_argument
 ---
 <div>{{jsSidebar("Errors")}}</div>
 
diff --git a/files/de/web/javascript/reference/functions/pfeilfunktionen/index.html b/files/de/web/javascript/reference/functions/arrow_functions/index.html
index a29b5ea3cf..1304e9edda 100644
--- a/files/de/web/javascript/reference/functions/pfeilfunktionen/index.html
+++ b/files/de/web/javascript/reference/functions/arrow_functions/index.html
@@ -1,6 +1,6 @@
 ---
 title: Pfeilfunktionen
-slug: Web/JavaScript/Reference/Functions/Pfeilfunktionen
+slug: Web/JavaScript/Reference/Functions/Arrow_functions
 tags:
   - ECMAScript 2015
   - Functions
@@ -8,6 +8,7 @@ tags:
   - JavaScript
   - Reference
 translation_of: Web/JavaScript/Reference/Functions/Arrow_functions
+original_slug: Web/JavaScript/Reference/Functions/Pfeilfunktionen
 ---
 <div>{{jsSidebar("Functions")}}</div>
 
diff --git a/files/de/web/javascript/reference/functions/methoden_definitionen/index.html b/files/de/web/javascript/reference/functions/method_definitions/index.html
index bf4d432627..10d1cd5f78 100644
--- a/files/de/web/javascript/reference/functions/methoden_definitionen/index.html
+++ b/files/de/web/javascript/reference/functions/method_definitions/index.html
@@ -1,6 +1,6 @@
 ---
 title: Methoden Definitionen
-slug: Web/JavaScript/Reference/Functions/Methoden_Definitionen
+slug: Web/JavaScript/Reference/Functions/Method_definitions
 tags:
   - ECMAScript 2015
   - Funktionen
@@ -8,6 +8,7 @@ tags:
   - Objekte
   - Syntax
 translation_of: Web/JavaScript/Reference/Functions/Method_definitions
+original_slug: Web/JavaScript/Reference/Functions/Methoden_Definitionen
 ---
 <div>{{JsSidebar("Functions")}}</div>
 
diff --git a/files/de/web/javascript/reference/functions/rest_parameter/index.html b/files/de/web/javascript/reference/functions/rest_parameters/index.html
index a529c7b1d6..b07d429542 100644
--- a/files/de/web/javascript/reference/functions/rest_parameter/index.html
+++ b/files/de/web/javascript/reference/functions/rest_parameters/index.html
@@ -1,12 +1,13 @@
 ---
 title: Rest Parameter
-slug: Web/JavaScript/Reference/Functions/rest_parameter
+slug: Web/JavaScript/Reference/Functions/rest_parameters
 tags:
   - Functions
   - JavaScript
   - Rest
   - Rest Parameter
 translation_of: Web/JavaScript/Reference/Functions/rest_parameters
+original_slug: Web/JavaScript/Reference/Functions/rest_parameter
 ---
 <div>{{jsSidebar("Functions")}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/atomics/wake/index.html b/files/de/web/javascript/reference/global_objects/atomics/notify/index.html
index 5ac06d7adc..1a88be7587 100644
--- a/files/de/web/javascript/reference/global_objects/atomics/wake/index.html
+++ b/files/de/web/javascript/reference/global_objects/atomics/notify/index.html
@@ -1,12 +1,13 @@
 ---
 title: Atomics.notify()
-slug: Web/JavaScript/Reference/Global_Objects/Atomics/wake
+slug: Web/JavaScript/Reference/Global_Objects/Atomics/notify
 tags:
   - Atomics
   - JavaScript
   - Method
   - Shared Memory
 translation_of: Web/JavaScript/Reference/Global_Objects/Atomics/notify
+original_slug: Web/JavaScript/Reference/Global_Objects/Atomics/wake
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/math/math.random/index.html b/files/de/web/javascript/reference/global_objects/math/random/index.html
index 6097229c1a..c57bb9f1c8 100644
--- a/files/de/web/javascript/reference/global_objects/math/math.random/index.html
+++ b/files/de/web/javascript/reference/global_objects/math/random/index.html
@@ -1,12 +1,13 @@
 ---
 title: Math.random()
-slug: Web/JavaScript/Reference/Global_Objects/Math/math.random
+slug: Web/JavaScript/Reference/Global_Objects/Math/random
 tags:
   - JavaScript
   - Math
   - Method
   - Reference
 translation_of: Web/JavaScript/Reference/Global_Objects/Math/random
+original_slug: Web/JavaScript/Reference/Global_Objects/Math/math.random
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/string/suchen/index.html b/files/de/web/javascript/reference/global_objects/string/search/index.html
index 5fb838010a..c1d0af6731 100644
--- a/files/de/web/javascript/reference/global_objects/string/suchen/index.html
+++ b/files/de/web/javascript/reference/global_objects/string/search/index.html
@@ -1,6 +1,6 @@
 ---
 title: String.prototype.search()
-slug: Web/JavaScript/Reference/Global_Objects/String/suchen
+slug: Web/JavaScript/Reference/Global_Objects/String/search
 tags:
   - JavaScript
   - Méthode
@@ -9,6 +9,7 @@ tags:
   - Regulärer Ausdruck
   - Zeichenkette
 translation_of: Web/JavaScript/Reference/Global_Objects/String/search
+original_slug: Web/JavaScript/Reference/Global_Objects/String/suchen
 ---
 <div>{{JSRef}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/string/trimright/index.html b/files/de/web/javascript/reference/global_objects/string/trimend/index.html
index b66e15f474..161137e75e 100644
--- a/files/de/web/javascript/reference/global_objects/string/trimright/index.html
+++ b/files/de/web/javascript/reference/global_objects/string/trimend/index.html
@@ -1,6 +1,6 @@
 ---
 title: String.prototype.trimRight()
-slug: Web/JavaScript/Reference/Global_Objects/String/TrimRight
+slug: Web/JavaScript/Reference/Global_Objects/String/trimEnd
 tags:
   - JavaScript
   - Method
@@ -8,6 +8,7 @@ tags:
   - Reference
   - String
 translation_of: Web/JavaScript/Reference/Global_Objects/String/trimEnd
+original_slug: Web/JavaScript/Reference/Global_Objects/String/TrimRight
 ---
 <div>{{JSRef}} {{non-standard_header}}</div>
 
diff --git a/files/de/web/javascript/reference/global_objects/string/trimleft/index.html b/files/de/web/javascript/reference/global_objects/string/trimstart/index.html
index db5dbd55cb..00d06919eb 100644
--- a/files/de/web/javascript/reference/global_objects/string/trimleft/index.html
+++ b/files/de/web/javascript/reference/global_objects/string/trimstart/index.html
@@ -1,6 +1,6 @@
 ---
 title: String.prototype.trimLeft()
-slug: Web/JavaScript/Reference/Global_Objects/String/TrimLeft
+slug: Web/JavaScript/Reference/Global_Objects/String/trimStart
 tags:
   - JavaScript
   - Method
@@ -8,6 +8,7 @@ tags:
   - Reference
   - String
 translation_of: Web/JavaScript/Reference/Global_Objects/String/trimStart
+original_slug: Web/JavaScript/Reference/Global_Objects/String/TrimLeft
 ---
 <div>{{JSRef}} {{non-standard_header}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/dekrement/index.html b/files/de/web/javascript/reference/operators/decrement/index.html
index 16b185b35c..c425107a8d 100644
--- a/files/de/web/javascript/reference/operators/dekrement/index.html
+++ b/files/de/web/javascript/reference/operators/decrement/index.html
@@ -1,11 +1,12 @@
 ---
 title: Dekrement (--)
-slug: Web/JavaScript/Reference/Operators/Dekrement
+slug: Web/JavaScript/Reference/Operators/Decrement
 tags:
   - Dekrement
   - Dekrement-Operator
   - Dekrementieren
 translation_of: Web/JavaScript/Reference/Operators/Decrement
+original_slug: Web/JavaScript/Reference/Operators/Dekrement
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/destrukturierende_zuweisung/index.html b/files/de/web/javascript/reference/operators/destructuring_assignment/index.html
index 1ece290e90..82a5d0ab5a 100644
--- a/files/de/web/javascript/reference/operators/destrukturierende_zuweisung/index.html
+++ b/files/de/web/javascript/reference/operators/destructuring_assignment/index.html
@@ -1,12 +1,13 @@
 ---
 title: Destrukturierende Zuweisung
-slug: Web/JavaScript/Reference/Operators/Destrukturierende_Zuweisung
+slug: Web/JavaScript/Reference/Operators/Destructuring_assignment
 tags:
   - Destructuring
   - ECMAScript 2015
   - JavaScript
   - Operator
 translation_of: Web/JavaScript/Reference/Operators/Destructuring_assignment
+original_slug: Web/JavaScript/Reference/Operators/Destrukturierende_Zuweisung
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/inkrement/index.html b/files/de/web/javascript/reference/operators/increment/index.html
index 74289b92e1..f47037708f 100644
--- a/files/de/web/javascript/reference/operators/inkrement/index.html
+++ b/files/de/web/javascript/reference/operators/increment/index.html
@@ -1,11 +1,12 @@
 ---
 title: Inkrement (++)
-slug: Web/JavaScript/Reference/Operators/Inkrement
+slug: Web/JavaScript/Reference/Operators/Increment
 tags:
   - Inkrement
   - Inkrement-Operator
   - Inkrementieren
 translation_of: Web/JavaScript/Reference/Operators/Increment
+original_slug: Web/JavaScript/Reference/Operators/Inkrement
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/objekt_initialisierer/index.html b/files/de/web/javascript/reference/operators/object_initializer/index.html
index 32c30b7f16..b4ac1fb413 100644
--- a/files/de/web/javascript/reference/operators/objekt_initialisierer/index.html
+++ b/files/de/web/javascript/reference/operators/object_initializer/index.html
@@ -1,6 +1,6 @@
 ---
 title: Objekt Initialisierer
-slug: Web/JavaScript/Reference/Operators/Objekt_Initialisierer
+slug: Web/JavaScript/Reference/Operators/Object_initializer
 tags:
   - ECMAScript 2015
   - JSON
@@ -13,6 +13,7 @@ tags:
   - mutation
   - properties
 translation_of: Web/JavaScript/Reference/Operators/Object_initializer
+original_slug: Web/JavaScript/Reference/Operators/Objekt_Initialisierer
 ---
 <div>{{JsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/optionale_verkettung/index.html b/files/de/web/javascript/reference/operators/optional_chaining/index.html
index 8ef763b3cd..84344c90ab 100644
--- a/files/de/web/javascript/reference/operators/optionale_verkettung/index.html
+++ b/files/de/web/javascript/reference/operators/optional_chaining/index.html
@@ -1,6 +1,6 @@
 ---
 title: Optionale Verkettung
-slug: Web/JavaScript/Reference/Operators/Optionale_Verkettung
+slug: Web/JavaScript/Reference/Operators/Optional_chaining
 tags:
   - Experimentell
   - JavaScript
@@ -9,6 +9,7 @@ tags:
   - Referenz
   - Verkettung
 translation_of: Web/JavaScript/Reference/Operators/Optional_chaining
+original_slug: Web/JavaScript/Reference/Operators/Optionale_Verkettung
 ---
 <div>{{JSSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/operators/modulo/index.html b/files/de/web/javascript/reference/operators/remainder/index.html
index 19403ab883..36aacbfa93 100644
--- a/files/de/web/javascript/reference/operators/modulo/index.html
+++ b/files/de/web/javascript/reference/operators/remainder/index.html
@@ -1,12 +1,13 @@
 ---
 title: Modulo (%)
-slug: Web/JavaScript/Reference/Operators/Modulo
+slug: Web/JavaScript/Reference/Operators/Remainder
 tags:
   - Division mit Rest
   - Divisionsalgorithmus
   - Restwert
   - Restwertberechnung
 translation_of: Web/JavaScript/Reference/Operators/Remainder
+original_slug: Web/JavaScript/Reference/Operators/Modulo
 ---
 <div>{{jsSidebar("Operators")}}</div>
 
diff --git a/files/de/web/javascript/reference/statements/funktion/index.html b/files/de/web/javascript/reference/statements/function/index.html
index 64a54347bc..552b88e695 100644
--- a/files/de/web/javascript/reference/statements/funktion/index.html
+++ b/files/de/web/javascript/reference/statements/function/index.html
@@ -1,7 +1,8 @@
 ---
 title: Funktion
-slug: Web/JavaScript/Reference/Statements/funktion
+slug: Web/JavaScript/Reference/Statements/function
 translation_of: Web/JavaScript/Reference/Statements/function
+original_slug: Web/JavaScript/Reference/Statements/funktion
 ---
 <div>{{jsSidebar("Statements")}}</div>
 
diff --git a/files/de/web/javascript/reference/template_strings/index.html b/files/de/web/javascript/reference/template_literals/index.html
index 54885ed5a3..6d53234144 100644
--- a/files/de/web/javascript/reference/template_strings/index.html
+++ b/files/de/web/javascript/reference/template_literals/index.html
@@ -1,7 +1,8 @@
 ---
 title: Template-Strings
-slug: Web/JavaScript/Reference/template_strings
+slug: Web/JavaScript/Reference/Template_literals
 translation_of: Web/JavaScript/Reference/Template_literals
+original_slug: Web/JavaScript/Reference/template_strings
 ---
 <div>{{JsSidebar("More")}}</div>
 
diff --git a/files/de/web/mathml/attribute/werte/index.html b/files/de/web/mathml/attribute/values/index.html
index 04a059b217..5193db2622 100644
--- a/files/de/web/mathml/attribute/werte/index.html
+++ b/files/de/web/mathml/attribute/values/index.html
@@ -1,10 +1,11 @@
 ---
 title: Werte
-slug: Web/MathML/Attribute/Werte
+slug: Web/MathML/Attribute/Values
 tags:
   - MathML
   - Referenz
 translation_of: Web/MathML/Attribute/Values
+original_slug: Web/MathML/Attribute/Werte
 ---
 <h2 id="Maßangaben"><a id="massangaben" name="massangaben">Maßangaben</a></h2>
 
diff --git a/files/de/web/mathml/beispiele/quadratische_gleichung/index.html b/files/de/web/mathml/examples/deriving_the_quadratic_formula/index.html
index 29a4f32e8f..02110f507b 100644
--- a/files/de/web/mathml/beispiele/quadratische_gleichung/index.html
+++ b/files/de/web/mathml/examples/deriving_the_quadratic_formula/index.html
@@ -1,10 +1,11 @@
 ---
 title: Lösungsformel für die Quadratische Gleichung
-slug: Web/MathML/Beispiele/Quadratische_Gleichung
+slug: Web/MathML/Examples/Deriving_the_Quadratic_Formula
 tags:
   - Beispiel
   - MathML
 translation_of: Web/MathML/Examples/Deriving_the_Quadratic_Formula
+original_slug: Web/MathML/Beispiele/Quadratische_Gleichung
 ---
 <p>Lösungsformel der Quadratischen Gleichung (mit quadratischer Ergänzung)</p>
 
diff --git a/files/de/web/mathml/beispiele/index.html b/files/de/web/mathml/examples/index.html
index 4d387e8110..eb9a53de0b 100644
--- a/files/de/web/mathml/beispiele/index.html
+++ b/files/de/web/mathml/examples/index.html
@@ -1,11 +1,12 @@
 ---
 title: Beispiele
-slug: Web/MathML/Beispiele
+slug: Web/MathML/Examples
 tags:
   - Anfänger
   - Beispiel
   - MathML
 translation_of: Web/MathML/Examples
+original_slug: Web/MathML/Beispiele
 ---
 <p>Hier gibt es einige Beispiele, die helfen können zu verstehen, wie mathematische Konzepte im Web-Umfeld dargestellt werden können.</p>
 
diff --git a/files/de/web/mathml/beispiele/mathml_satz_des_pythagoras/index.html b/files/de/web/mathml/examples/mathml_pythagorean_theorem/index.html
index 3da8248ee6..bdca83764e 100644
--- a/files/de/web/mathml/beispiele/mathml_satz_des_pythagoras/index.html
+++ b/files/de/web/mathml/examples/mathml_pythagorean_theorem/index.html
@@ -1,11 +1,12 @@
 ---
 title: Beweis des Satzes des Pythagoras
-slug: Web/MathML/Beispiele/MathML_Satz_des_Pythagoras
+slug: Web/MathML/Examples/MathML_Pythagorean_Theorem
 tags:
   - Anfänger
   - Beispiel
   - MathML
 translation_of: Web/MathML/Examples/MathML_Pythagorean_Theorem
+original_slug: Web/MathML/Beispiele/MathML_Satz_des_Pythagoras
 ---
 <p>Wir erbringen einen Beweis für den Satz des Pythagoras für rechtwinklige Dreiecke: <math> <mrow> <msup><mi> a </mi><mn>2</mn></msup> <mo> + </mo> <msup><mi> b </mi><mn>2</mn></msup> <mo> = </mo> <msup><mi> c </mi><mn>2</mn></msup> </mrow> </math></p>
 
diff --git a/files/de/opensearch_plugin_für_firefox_erstellen/index.html b/files/de/web/opensearch/index.html
index 154f66b01c..9facb2c325 100644
--- a/files/de/opensearch_plugin_für_firefox_erstellen/index.html
+++ b/files/de/web/opensearch/index.html
@@ -1,10 +1,11 @@
 ---
 title: OpenSearch Plugin für Firefox erstellen
-slug: OpenSearch_Plugin_für_Firefox_erstellen
+slug: Web/OpenSearch
 tags:
   - Add-ons
   - OpenSearch
 translation_of: Web/OpenSearch
+original_slug: OpenSearch_Plugin_für_Firefox_erstellen
 ---
 <h2 id="OpenSearch">OpenSearch</h2>
 <p>{{ fx_minversion_header(2) }}</p>
diff --git a/files/de/web/svg/tutorial/einführung/index.html b/files/de/web/svg/tutorial/introduction/index.html
index 9e4250ed20..a90697eee2 100644
--- a/files/de/web/svg/tutorial/einführung/index.html
+++ b/files/de/web/svg/tutorial/introduction/index.html
@@ -1,10 +1,11 @@
 ---
 title: Einführung
-slug: Web/SVG/Tutorial/Einführung
+slug: Web/SVG/Tutorial/Introduction
 tags:
   - SVG
-  - 'SVG:Tutorial'
+  - SVG:Tutorial
 translation_of: Web/SVG/Tutorial/Introduction
+original_slug: Web/SVG/Tutorial/Einführung
 ---
 <p>{{ PreviousNext("SVG/Tutorial", "SVG/Tutorial/Erste_Schritte") }}</p>
 <p><img align="right" alt="" class="internal" src="/@api/deki/files/348/=SVG_Overview.png"></p>
diff --git a/files/de/web/svg/tutorial/pfade/index.html b/files/de/web/svg/tutorial/paths/index.html
index fcf1e30859..288426fce3 100644
--- a/files/de/web/svg/tutorial/pfade/index.html
+++ b/files/de/web/svg/tutorial/paths/index.html
@@ -1,13 +1,14 @@
 ---
 title: Pfade
-slug: Web/SVG/Tutorial/Pfade
+slug: Web/SVG/Tutorial/Paths
 tags:
   - Fortgeschritten
   - HilfeBenötigt
   - InhaltBenötigt
   - SVG
-  - 'SVG:Tutorial'
+  - SVG:Tutorial
 translation_of: Web/SVG/Tutorial/Paths
+original_slug: Web/SVG/Tutorial/Pfade
 ---
 <p>{{ PreviousNext("Web/SVG/Tutorial/Basic_Shapes", "Web/SVG/Tutorial/Fills_and_Strokes") }}</p>
 
diff --git a/files/de/web/svg/tutorial/svg_schriftarten/index.html b/files/de/web/svg/tutorial/svg_fonts/index.html
index 57d826cb5e..7fe15b2998 100644
--- a/files/de/web/svg/tutorial/svg_schriftarten/index.html
+++ b/files/de/web/svg/tutorial/svg_fonts/index.html
@@ -1,7 +1,8 @@
 ---
 title: SVG-Schriftarten
-slug: Web/SVG/Tutorial/SVG_Schriftarten
+slug: Web/SVG/Tutorial/SVG_fonts
 translation_of: Web/SVG/Tutorial/SVG_fonts
+original_slug: Web/SVG/Tutorial/SVG_Schriftarten
 ---
 <p>{{ PreviousNext("Web/SVG/Tutorial/Filter_effects", "Web/SVG/Tutorial/SVG_Image_Tag") }}</p>
 
diff --git a/files/de/web/xml/xml_einführung/index.html b/files/de/web/xml/xml_introduction/index.html
index 43b0433193..6bf868fa93 100644
--- a/files/de/web/xml/xml_einführung/index.html
+++ b/files/de/web/xml/xml_introduction/index.html
@@ -1,9 +1,10 @@
 ---
 title: XML_Einführung
-slug: Web/XML/XML_Einführung
+slug: Web/XML/XML_introduction
 tags:
   - XML
 translation_of: Web/XML/XML_introduction
+original_slug: Web/XML/XML_Einführung
 ---
 <h3 id="Was_ist_XML.3F">Was ist XML?</h3>
 <p>XML ist eine Auszeichnungssprache ähnlich wie HTML. XML steht für <strong>Extensible Markup Language</strong> (Erweiterbare Auszeichnungssprache) und ist eine <a class="external" href="http://www.w3.org/">Standardisierte</a> Spezifikation, die für allgemeingültige Zwecke genutzt werden kann. Das bedeutet, dass, im Gegensatz zu anderen Auszeichnungssprachen, XML nicht vordefiniert ist, sodass eigene Tags definiert werden müssen. Die hauptsächliche Aufgabe der Sprache besteht darin, Daten über unterschiedliche Systeme auszutauschen, so wie im Internet.</p>
diff --git a/files/de/web/javascript/einführung_in_den_gebrauch_von_xpath_in_javascript/index.html b/files/de/web/xpath/introduction_to_using_xpath_in_javascript/index.html
index 6af0ba9e0e..93dc70994e 100644
--- a/files/de/web/javascript/einführung_in_den_gebrauch_von_xpath_in_javascript/index.html
+++ b/files/de/web/xpath/introduction_to_using_xpath_in_javascript/index.html
@@ -1,7 +1,8 @@
 ---
 title: Einführung in den Gebrauch von XPath in JavaScript
-slug: Web/JavaScript/Einführung_in_den_Gebrauch_von_XPath_in_JavaScript
+slug: Web/XPath/Introduction_to_using_XPath_in_JavaScript
 translation_of: Web/XPath/Introduction_to_using_XPath_in_JavaScript
+original_slug: Web/JavaScript/Einführung_in_den_Gebrauch_von_XPath_in_JavaScript
 ---
 <p>Dieses Dokument beschreibt die Schnittstelle zu <a href="/en-US/docs/XPath" title="en/XPath">XPath</a> in JavaScript intern, in Erweiterungen und in Webseiten. Mozilla implementiert einen großen Teil von <a class="external" href="http://www.w3.org/TR/DOM-Level-3-XPath/xpath.html">DOM 3 XPath</a>, sodass XPath auf HTML- und XML-Dokumente angewendet werden kann.</p>
 
diff --git a/files/el/_redirects.txt b/files/el/_redirects.txt
index 5e505392c3..c7ac2bab6d 100644
--- a/files/el/_redirects.txt
+++ b/files/el/_redirects.txt
@@ -1,3 +1,17 @@
 # FROM-URL	TO-URL
+/el/docs/Glossary/Δείκτης	/el/docs/Glossary/Index
+/el/docs/Glossary/Προσβασιμότητα	/el/docs/Glossary/Accessibility
+/el/docs/Learn/Common_questions/Πώς_δουλεύει_το_Διαδίκτυο	/el/docs/Learn/Common_questions/How_does_the_Internet_work
+/el/docs/Learn/Common_questions/Σελίδες_τόποι_διακομιστές_και_μηχανές_αναζήτησης	/el/docs/Learn/Common_questions/Pages_sites_servers_and_search_engines
+/el/docs/Learn/Common_questions/Τι_είναι_οι_υπερσύνδεσμοι	/el/docs/Learn/Common_questions/What_are_hyperlinks
+/el/docs/Learn/HTML/Forms	/el/docs/Learn/Forms
+/el/docs/Learn/HTML/Forms/Επικύρωση_δεδομένων_φόρμας	/el/docs/Learn/Forms/Form_validation
+/el/docs/Learn/JavaScript/Πρώτα_βήματα	/el/docs/Learn/JavaScript/First_steps
+/el/docs/MDN/Contribute/Howto/Dhmiourgia_logariasmou_MDN	/el/docs/orphaned/MDN/Contribute/Howto/Create_an_MDN_account
 /el/docs/MDN/Getting_started	/el/docs/MDN/Contribute/Getting_started
+/el/docs/MDN_at_ten	/el/docs/MDN/At_ten
+/el/docs/Mozilla/Πρόσθετα	/el/docs/Mozilla/Add-ons
+/el/docs/Web/JavaScript/Reference/Functions/Προεπιλεγμένες_παράμετροι	/el/docs/Web/JavaScript/Reference/Functions/Default_parameters
 /el/docs/en	/en-US/
+/el/docs/Εργαλεία	/el/docs/Tools
+/el/docs/Εργαλεία/about:debugging	/el/docs/Tools/about:debugging
diff --git a/files/el/_wikihistory.json b/files/el/_wikihistory.json
index 7f1c04b8d2..1c9a91fc54 100644
--- a/files/el/_wikihistory.json
+++ b/files/el/_wikihistory.json
@@ -70,18 +70,6 @@
       "ncdempelis"
     ]
   },
-  "Glossary/Δείκτης": {
-    "modified": "2019-01-17T02:27:54.053Z",
-    "contributors": [
-      "ValentinHacker"
-    ]
-  },
-  "Glossary/Προσβασιμότητα": {
-    "modified": "2019-03-18T21:43:32.407Z",
-    "contributors": [
-      "ValentinHacker"
-    ]
-  },
   "Learn": {
     "modified": "2020-07-16T22:43:39.483Z",
     "contributors": [
@@ -97,24 +85,6 @@
       "stephaniehobson"
     ]
   },
-  "Learn/Common_questions/Πώς_δουλεύει_το_Διαδίκτυο": {
-    "modified": "2020-07-16T22:35:36.513Z",
-    "contributors": [
-      "Amalchen"
-    ]
-  },
-  "Learn/Common_questions/Σελίδες_τόποι_διακομιστές_και_μηχανές_αναζήτησης": {
-    "modified": "2020-07-16T22:35:39.520Z",
-    "contributors": [
-      "Amalchen"
-    ]
-  },
-  "Learn/Common_questions/Τι_είναι_οι_υπερσύνδεσμοι": {
-    "modified": "2020-07-16T22:35:42.895Z",
-    "contributors": [
-      "Amalchen"
-    ]
-  },
   "Learn/Getting_started_with_the_web": {
     "modified": "2020-07-16T22:33:50.911Z",
     "contributors": [
@@ -127,30 +97,12 @@
       "Sheppy"
     ]
   },
-  "Learn/HTML/Forms": {
-    "modified": "2020-07-16T22:20:55.179Z",
-    "contributors": [
-      "Jeffrey_Yang"
-    ]
-  },
-  "Learn/HTML/Forms/Επικύρωση_δεδομένων_φόρμας": {
-    "modified": "2020-07-16T22:21:48.424Z",
-    "contributors": [
-      "stratis-vip"
-    ]
-  },
   "Learn/JavaScript": {
     "modified": "2020-07-16T22:29:37.459Z",
     "contributors": [
       "k33theod"
     ]
   },
-  "Learn/JavaScript/Πρώτα_βήματα": {
-    "modified": "2020-07-16T22:29:49.269Z",
-    "contributors": [
-      "kriminals"
-    ]
-  },
   "MDN": {
     "modified": "2019-03-24T00:08:44.846Z",
     "contributors": [
@@ -195,19 +147,6 @@
       "Sheppy"
     ]
   },
-  "MDN/Contribute/Howto/Dhmiourgia_logariasmou_MDN": {
-    "modified": "2019-01-17T03:15:07.858Z",
-    "contributors": [
-      "wbamberg",
-      "dspentzos"
-    ]
-  },
-  "MDN_at_ten": {
-    "modified": "2019-03-23T22:31:03.705Z",
-    "contributors": [
-      "andreaschoukas"
-    ]
-  },
   "Mozilla": {
     "modified": "2019-03-23T23:34:03.331Z",
     "contributors": [
@@ -222,13 +161,6 @@
       "glasserc"
     ]
   },
-  "Mozilla/Πρόσθετα": {
-    "modified": "2019-09-09T11:54:45.286Z",
-    "contributors": [
-      "SphinxKnight",
-      "dspentzos"
-    ]
-  },
   "Web": {
     "modified": "2019-03-23T23:26:04.468Z",
     "contributors": [
@@ -312,12 +244,6 @@
       "utkarshbhatt12"
     ]
   },
-  "Web/JavaScript/Reference/Functions/Προεπιλεγμένες_παράμετροι": {
-    "modified": "2020-10-15T22:02:41.992Z",
-    "contributors": [
-      "mankal111"
-    ]
-  },
   "Web/JavaScript/Reference/Global_Objects": {
     "modified": "2020-03-12T19:46:50.495Z",
     "contributors": [
@@ -342,21 +268,95 @@
       "dspentzos"
     ]
   },
-  "Εργαλεία": {
-    "modified": "2020-07-16T22:44:14.171Z",
+  "Glossary/Index": {
+    "modified": "2019-01-17T02:27:54.053Z",
+    "contributors": [
+      "ValentinHacker"
+    ]
+  },
+  "Glossary/Accessibility": {
+    "modified": "2019-03-18T21:43:32.407Z",
+    "contributors": [
+      "ValentinHacker"
+    ]
+  },
+  "Learn/Common_questions/How_does_the_Internet_work": {
+    "modified": "2020-07-16T22:35:36.513Z",
+    "contributors": [
+      "Amalchen"
+    ]
+  },
+  "Learn/Common_questions/Pages_sites_servers_and_search_engines": {
+    "modified": "2020-07-16T22:35:39.520Z",
+    "contributors": [
+      "Amalchen"
+    ]
+  },
+  "Learn/Common_questions/What_are_hyperlinks": {
+    "modified": "2020-07-16T22:35:42.895Z",
+    "contributors": [
+      "Amalchen"
+    ]
+  },
+  "Learn/Forms": {
+    "modified": "2020-07-16T22:20:55.179Z",
+    "contributors": [
+      "Jeffrey_Yang"
+    ]
+  },
+  "Learn/Forms/Form_validation": {
+    "modified": "2020-07-16T22:21:48.424Z",
+    "contributors": [
+      "stratis-vip"
+    ]
+  },
+  "Learn/JavaScript/First_steps": {
+    "modified": "2020-07-16T22:29:49.269Z",
+    "contributors": [
+      "kriminals"
+    ]
+  },
+  "MDN/At_ten": {
+    "modified": "2019-03-23T22:31:03.705Z",
+    "contributors": [
+      "andreaschoukas"
+    ]
+  },
+  "orphaned/MDN/Contribute/Howto/Create_an_MDN_account": {
+    "modified": "2019-01-17T03:15:07.858Z",
+    "contributors": [
+      "wbamberg",
+      "dspentzos"
+    ]
+  },
+  "Mozilla/Add-ons": {
+    "modified": "2019-09-09T11:54:45.286Z",
     "contributors": [
       "SphinxKnight",
-      "sotos",
-      "gremlin",
-      "sro",
-      "Simaioforos",
       "dspentzos"
     ]
   },
-  "Εργαλεία/about:debugging": {
+  "Web/JavaScript/Reference/Functions/Default_parameters": {
+    "modified": "2020-10-15T22:02:41.992Z",
+    "contributors": [
+      "mankal111"
+    ]
+  },
+  "Tools/about:debugging": {
     "modified": "2020-07-16T22:36:32.137Z",
     "contributors": [
       "minasloykas65"
     ]
+  },
+  "Tools": {
+    "modified": "2020-07-16T22:44:14.171Z",
+    "contributors": [
+      "SphinxKnight",
+      "sotos",
+      "gremlin",
+      "sro",
+      "Simaioforos",
+      "dspentzos"
+    ]
   }
 }
\ No newline at end of file
diff --git a/files/el/glossary/προσβασιμότητα/index.html b/files/el/glossary/accessibility/index.html
index 3f083f6e91..c4dfdd8837 100644
--- a/files/el/glossary/προσβασιμότητα/index.html
+++ b/files/el/glossary/accessibility/index.html
@@ -1,10 +1,11 @@
 ---
 title: Προσβασιμότητα
-slug: Glossary/Προσβασιμότητα
+slug: Glossary/Accessibility
 tags:
   - Γλωσσάριο
   - Προσβασιμότητα
 translation_of: Glossary/Accessibility
+original_slug: Glossary/Προσβασιμότητα
 ---
 <p><em>Η Προσβασιμότητα Ιστού</em> (<strong>A11Y</strong>) αναφέρεται στις καλύτερες τεχνικές διατήρησης της λειτουργικότητας μιας ιστοσελίδας παρά τους φυσικούς και τεχνικούς περιορισμούς. Η Προσβασιμότητα Ιστού ορίζεται τυπικά και συζητείται στο {{Glossary("W3C")}} διά μέσου της {{Glossary("WAI","Πρωτοβουλίας Προσβασιμότητας Διαδικτύου")}} (ΠΠΔ).</p>
 
diff --git a/files/el/glossary/δείκτης/index.html b/files/el/glossary/index/index.html
index 018de44537..a7f08de7d9 100644
--- a/files/el/glossary/δείκτης/index.html
+++ b/files/el/glossary/index/index.html
@@ -1,11 +1,12 @@
 ---
 title: Δείκτης
-slug: Glossary/Δείκτης
+slug: Glossary/Index
 tags:
   - MDN Meta
   - Γλωσσάριο
   - Δείκτης
   - Προσανατολισμός
 translation_of: Glossary/Index
+original_slug: Glossary/Δείκτης
 ---
 <p>{{Index("/en-US/docs/Glossary")}}</p>
diff --git a/files/el/learn/common_questions/πώς_δουλεύει_το_διαδίκτυο/index.html b/files/el/learn/common_questions/how_does_the_internet_work/index.html
index ecbf0f41eb..de72dbcd54 100644
--- a/files/el/learn/common_questions/πώς_δουλεύει_το_διαδίκτυο/index.html
+++ b/files/el/learn/common_questions/how_does_the_internet_work/index.html
@@ -1,11 +1,12 @@
 ---
 title: Πώς δουλεύει το Διαδίκτυο;
-slug: Learn/Common_questions/Πώς_δουλεύει_το_Διαδίκτυο
+slug: Learn/Common_questions/How_does_the_Internet_work
 tags:
   - Αρχάριος
   - Εκμάθηση
   - Μηχανισμοί Ιστού
 translation_of: Learn/Common_questions/How_does_the_Internet_work
+original_slug: Learn/Common_questions/Πώς_δουλεύει_το_Διαδίκτυο
 ---
 <div class="summary">
 <p>Αυτό το άρθρο συζητά τι είναι το Διαδίκτυο και πώς δουλεύει.</p>
diff --git a/files/el/learn/common_questions/σελίδες_τόποι_διακομιστές_και_μηχανές_αναζήτησης/index.html b/files/el/learn/common_questions/pages_sites_servers_and_search_engines/index.html
index ac2d66edfe..6ad88733ae 100644
--- a/files/el/learn/common_questions/σελίδες_τόποι_διακομιστές_και_μηχανές_αναζήτησης/index.html
+++ b/files/el/learn/common_questions/pages_sites_servers_and_search_engines/index.html
@@ -2,12 +2,13 @@
 title: >-
   Ποια είναι η διαφορά μεταξύ ιστοσελίδας, ιστότοπου, διακομιστή ιστού, και
   μηχανής αναζήτησης;
-slug: Learn/Common_questions/Σελίδες_τόποι_διακομιστές_και_μηχανές_αναζήτησης
+slug: Learn/Common_questions/Pages_sites_servers_and_search_engines
 tags:
   - Αρχάριος
   - Μηχανισμοί Ιστού
   - Χρειάζεται Διαδραστικό Μάθημα
 translation_of: Learn/Common_questions/Pages_sites_servers_and_search_engines
+original_slug: Learn/Common_questions/Σελίδες_τόποι_διακομιστές_και_μηχανές_αναζήτησης
 ---
 <div class="summary">
 <p><span class="seoSummary">Σε αυτό το άρθρο περιγράφουμε διάφορες έννοιες σχετικά με τον ιστό: ιστότοποι, ιστοσελίδες, διακομιστές ιστού, και μηχανές αναζήτησης. Αυτοί οι όροι συχνά μπερδεύονται απ' τους νεοφερμένους στον ιστό, ή χρησιμοποιούνται λανθασμένα. Ας μάθουμε τι σημαίνει ο κάθε ένας.</span></p>
diff --git a/files/el/learn/common_questions/τι_είναι_οι_υπερσύνδεσμοι/index.html b/files/el/learn/common_questions/what_are_hyperlinks/index.html
index b63ba8a117..8c52def6d0 100644
--- a/files/el/learn/common_questions/τι_είναι_οι_υπερσύνδεσμοι/index.html
+++ b/files/el/learn/common_questions/what_are_hyperlinks/index.html
@@ -1,7 +1,8 @@
 ---
 title: Τι είναι οι υπερσύνδεμοι;
-slug: Learn/Common_questions/Τι_είναι_οι_υπερσύνδεσμοι
+slug: Learn/Common_questions/What_are_hyperlinks
 translation_of: Learn/Common_questions/What_are_hyperlinks
+original_slug: Learn/Common_questions/Τι_είναι_οι_υπερσύνδεσμοι
 ---
 <div class="summary">
 <p>Σ' αυτό το άρθρο, θα εξετάσουμε τι είναι οι υπερσύνδεσμοι και γιατί έχουν σημασία.</p>
diff --git a/files/el/learn/html/forms/επικύρωση_δεδομένων_φόρμας/index.html b/files/el/learn/forms/form_validation/index.html
index f4d9184454..05df49e7cf 100644
--- a/files/el/learn/html/forms/επικύρωση_δεδομένων_φόρμας/index.html
+++ b/files/el/learn/forms/form_validation/index.html
@@ -1,7 +1,8 @@
 ---
 title: Επικύρωση δεδομένων φόρμας
-slug: Learn/HTML/Forms/Επικύρωση_δεδομένων_φόρμας
+slug: Learn/Forms/Form_validation
 translation_of: Learn/Forms/Form_validation
+original_slug: Learn/HTML/Forms/Επικύρωση_δεδομένων_φόρμας
 ---
 <div>{{LearnSidebar}}{{PreviousMenuNext("Learn/HTML/Forms/Sending_and_retrieving_form_data", "Learn/HTML/Forms/How_to_build_custom_form_widgets", "Learn/HTML/Forms")}}</div>
 
diff --git a/files/el/learn/html/forms/index.html b/files/el/learn/forms/index.html
index 215164d6a6..03f1ed316c 100644
--- a/files/el/learn/html/forms/index.html
+++ b/files/el/learn/forms/index.html
@@ -1,6 +1,6 @@
 ---
 title: HTML forms
-slug: Learn/HTML/Forms
+slug: Learn/Forms
 tags:
   - Beginner
   - Featured
@@ -13,6 +13,7 @@ tags:
   - TopicStub
   - Web
 translation_of: Learn/Forms
+original_slug: Learn/HTML/Forms
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/el/learn/javascript/πρώτα_βήματα/index.html b/files/el/learn/javascript/first_steps/index.html
index f6ecf9065d..f9f0e1e060 100644
--- a/files/el/learn/javascript/πρώτα_βήματα/index.html
+++ b/files/el/learn/javascript/first_steps/index.html
@@ -1,6 +1,6 @@
 ---
 title: Τα Πρώτα Βήματα στη JavaScript
-slug: Learn/JavaScript/Πρώτα_βήματα
+slug: Learn/JavaScript/First_steps
 tags:
   - JavaScript
   - Άρθρο
@@ -16,6 +16,7 @@ tags:
   - προγραμματισμός
   - τελεστές
 translation_of: Learn/JavaScript/First_steps
+original_slug: Learn/JavaScript/Πρώτα_βήματα
 ---
 <div>{{LearnSidebar}}</div>
 
diff --git a/files/el/mdn_at_ten/index.html b/files/el/mdn/at_ten/index.html
index 37882489ed..88a96305f3 100644
--- a/files/el/mdn_at_ten/index.html
+++ b/files/el/mdn/at_ten/index.html
@@ -1,7 +1,8 @@
 ---
 title: MDN at 10
-slug: MDN_at_ten
+slug: MDN/At_ten
 translation_of: MDN_at_ten
+original_slug: MDN_at_ten
 ---
 <p class="summary">Celebrate 10 years of documenting your Web.</p>
 
diff --git a/files/el/mozilla/πρόσθετα/index.html b/files/el/mozilla/add-ons/index.html
index bbc540795f..af9a81c295 100644
--- a/files/el/mozilla/πρόσθετα/index.html
+++ b/files/el/mozilla/add-ons/index.html
@@ -1,7 +1,8 @@
 ---
 title: Πρόσθετα
-slug: Mozilla/Πρόσθετα
+slug: Mozilla/Add-ons
 translation_of: Mozilla/Add-ons
+original_slug: Mozilla/Πρόσθετα
 ---
 <div class="summary">Τροποποιήστε και επεκτείνετε εφαρμογές της Mozilla</div>
 
diff --git a/files/el/mdn/contribute/howto/dhmiourgia_logariasmou_mdn/index.html b/files/el/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
index e01eefbff2..488930adca 100644
--- a/files/el/mdn/contribute/howto/dhmiourgia_logariasmou_mdn/index.html
+++ b/files/el/orphaned/mdn/contribute/howto/create_an_mdn_account/index.html
@@ -1,12 +1,13 @@
 ---
 title: Δημιουργία λογαριασμού MDN
-slug: MDN/Contribute/Howto/Dhmiourgia_logariasmou_MDN
+slug: orphaned/MDN/Contribute/Howto/Create_an_MDN_account
 tags:
   - MDN Meta
   - Αρχάριος
   - Οδηγός
   - Τεκμηρίωση
 translation_of: MDN/Contribute/Howto/Create_an_MDN_account
+original_slug: MDN/Contribute/Howto/Dhmiourgia_logariasmou_MDN
 ---
 <div>{{MDNSidebar}}</div><p><span class="seoSummary">Για να επεξεργαστείτε περιεχόμενο στο MDN, θα χρειαστείτε ένα προφίλ MDN. Δεν χρειάζεστε προφίλ αν θέλετε μόνο να διαβάσετε και να αναζητήσετε τα έγγραφα του MDN. Αυτός ο οδηγός θα σάς βοηθήσετε να ρυθμίσετε το προφίλ MDN σας.</span></p>
 
diff --git a/files/el/εργαλεία/about_colon_debugging/index.html b/files/el/tools/about_colon_debugging/index.html
index 0baeead55c..8cc9fc9fb3 100644
--- a/files/el/εργαλεία/about_colon_debugging/index.html
+++ b/files/el/tools/about_colon_debugging/index.html
@@ -1,7 +1,8 @@
 ---
-title: 'about:debugging'
-slug: 'Εργαλεία/about:debugging'
-translation_of: 'Tools/about:debugging'
+title: about:debugging
+slug: Tools/about:debugging
+translation_of: Tools/about:debugging
+original_slug: Εργαλεία/about:debugging
 ---
 <p>{{ToolsSidebar}}</p>
 
diff --git a/files/el/εργαλεία/index.html b/files/el/tools/index.html
index a49c30e6ab..25db1c14c5 100644
--- a/files/el/εργαλεία/index.html
+++ b/files/el/tools/index.html
@@ -1,7 +1,8 @@
 ---
 title: Εργαλεία Προγραμματισμού του Firefox
-slug: Εργαλεία
+slug: Tools
 translation_of: Tools
+original_slug: Εργαλεία
 ---
 <div class="summary">Εξετάστε, επεξεργαστείτε και αποσφαλματώστε την HTML, την CSS και την JavaScript στον υπολογιστή και το κινητό</div>
 
diff --git a/files/el/web/javascript/reference/functions/προεπιλεγμένες_παράμετροι/index.html b/files/el/web/javascript/reference/functions/default_parameters/index.html
index 1802637dce..e3229bc633 100644
--- a/files/el/web/javascript/reference/functions/προεπιλεγμένες_παράμετροι/index.html
+++ b/files/el/web/javascript/reference/functions/default_parameters/index.html
@@ -1,11 +1,12 @@
 ---
 title: Προεπιλεγμένες παράμετροι
-slug: Web/JavaScript/Reference/Functions/Προεπιλεγμένες_παράμετροι
+slug: Web/JavaScript/Reference/Functions/Default_parameters
 tags:
   - ECMAScript 2015
   - JavaScript
   - Συναρτήσεις
 translation_of: Web/JavaScript/Reference/Functions/Default_parameters
+original_slug: Web/JavaScript/Reference/Functions/Προεπιλεγμένες_παράμετροι
 ---
 <div>{{jsSidebar("Συναρτήσεις")}}</div>