---
title: Expires
slug: Web/HTTP/Headers/Expires
translation_of: Web/HTTP/Headers/Expires
---
<div>{{HTTPSidebar}}</div>

<p><code><strong>Expires</strong></code> 헤더는 응답이 더 이상 신선하지 않다고 판단할 날짜/시간을 포함합니다.</p>

<p>0과 같은, 유효하지 않은 날짜는 과거의 시간을 나타내어 리소스가 이미 만료되었음을 의미합니다.</p>

<p>응답 내에 "max-age" 혹은 "s-max-age" 디렉티브를 지닌 {{HTTPHeader("Cache-Control")}} 헤더가 존재할 경우, <code>Expires</code> 헤더는 무시됩니다.</p>

<table class="properties">
 <tbody>
  <tr>
   <th scope="row">Header type</th>
   <td>{{Glossary("Response header")}}</td>
  </tr>
  <tr>
   <th scope="row">{{Glossary("Forbidden header name")}}</th>
   <td>no</td>
  </tr>
  <tr>
   <th scope="row">{{Glossary("Simple response header", "CORS-safelisted response-header")}}</th>
   <td>yes</td>
  </tr>
 </tbody>
</table>

<h2 id="문법">문법</h2>

<pre class="syntaxbox">Expires: &lt;http-date&gt;
</pre>

<h2 id="디렉티브">디렉티브</h2>

<dl>
 <dt>&lt;http-date&gt;</dt>
 <dd>
 <p>HTTP-date timestamp.</p>
 </dd>
</dl>

<h2 id="예제">예제</h2>

<pre>Expires: Wed, 21 Oct 2015 07:28:00 GMT</pre>

<h2 id="명세서">명세서</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">명세</th>
   <th scope="col">제목</th>
  </tr>
  <tr>
   <td>{{RFC("7234", "Expires", "5.3")}}</td>
   <td>Hypertext Transfer Protocol (HTTP/1.1): Caching</td>
  </tr>
 </tbody>
</table>

<h2 id="브라우저_호환성">브라우저 호환성</h2>

<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p>

<p>{{Compat}}</p>

<h2 id="함께_참고할_내용">함께 참고할 내용</h2>

<ul>
 <li>{{HTTPHeader("Cache-Control")}}</li>
 <li>{{HTTPHeader("Age")}}</li>
</ul>