1 files changed, 46 insertions, 0 deletions
diff --git a/files/ja/web/api/performancelongtasktiming/index.html b/files/ja/web/api/performancelongtasktiming/index.html
new file mode 100644
index 0000000000..36016f8089
--- /dev/null
+++ b/files/ja/web/api/performancelongtasktiming/index.html
@@ -0,0 +1,46 @@
+---
+title: PerformanceLongTaskTiming
+slug: Web/API/PerformanceLongTaskTiming
+tags:
+  - API
+  - Interface
+  - Long Tasks API
+  - PerformanceLongTaskTiming
+  - Reference
+translation_of: Web/API/PerformanceLongTaskTiming
+---
+<p>{{SeeCompatTable}}{{APIRef("Long Tasks")}}</p>
+
+<p><span class="seoSummary"><a href="/ja/docs/Web/API/Long_Tasks_API">Long Tasks API</a> の <strong><code>PerformanceLongTaskTiming</code></strong> インターフェイスは、長いタスクのインスタンスを報告します。</span></p>
+
+<p>{{InheritanceDiagram}}</p>
+
+<h2 id="Properties" name="Properties">プロパティ</h2>
+
+<dl>
+ <dt>{{domxref("PerformanceLongTaskTiming.attribution")}} {{readonlyinline}}</dt>
+ <dd>{{domxref('TaskAttributionTiming')}} インスタンスのシーケンスを返します。</dd>
+</dl>
+
+<h2 id="Specifications" name="Specifications">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">仕様</th>
+   <th scope="col">状態</th>
+   <th scope="col">コメント</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('Long Tasks','#sec-PerformanceLongTaskTiming','PerformanceLongTaskTiming')}}</td>
+   <td>{{Spec2('Long Tasks')}}</td>
+   <td>初期定義</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_Compatibility" name="Browser_Compatibility">ブラウザーの互換性</h2>
+
+
+
+<p>{{Compat("api.PerformanceLongTaskTiming")}}</p>