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class="button action small has-icon languages-switcher-menu" aria-haspopup="menu"><span class="button-wrap"><span class="icon icon-language "></span>Deutsch<span title="Diese Übersetzung ist Teil eines Experiments."><span class="icon icon-experimental "></span></span></span></button><div class="hidden"><ul class="submenu language-menu " aria-labelledby="language-menu-button"><li class=" "><form class="submenu-item locale-redirect-setting"><div class="group"><label class="switch"><input type="checkbox" name="locale-redirect"/><span class="slider"></span><span class="label">Remember language</span></label><a href="https://github.com/orgs/mdn/discussions/739" rel="external noopener noreferrer" target="_blank" title="Enable this setting to automatically switch to this language when it's available. (Click to learn more.)"><span class="icon icon-question-mark "></span></a></div></form></li><li class=" "><a data-locale="en-US" href="/en-US/docs/Web/HTTP/Headers/Server-Timing" class="button submenu-item"><span>English (US)</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/HTTP/Headers/Server-Timing" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ko" href="/ko/docs/Web/HTTP/Headers/Server-Timing" class="button submenu-item"><span>한국어</span></a></li><li class=" "><a data-locale="pt-BR" href="/pt-BR/docs/Web/HTTP/Headers/Server-Timing" class="button submenu-item"><span>Português (do Brasil)</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Web/HTTP/Headers/Server-Timing" class="button submenu-item"><span>中文 (简体)</span></a></li></ul></div></div></li></ul></div></div></div></div><div class="container"><div class="notecard experimental localized-content-note"><p><a href="https://github.com/orgs/mdn/discussions/741" class="external"><strong>Experiment</strong>: Dieser Inhalt wurde automatisch aus dem Englischen übersetzt, und kann Fehler enthalten.</a></p></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="HTTPSidebar"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#syntax">Syntax</a></li><li class="document-toc-item "><a class="document-toc-link" href="#datenschutz_und_sicherheit">Datenschutz und Sicherheit</a></li><li class="document-toc-item "><a class="document-toc-link" href="#performanceservertiming-schnittstelle">PerformanceServerTiming-Schnittstelle</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></div><div class="sidebar-body"> <ol> <li class="section"><a href="/de/docs/Web/HTTP">HTTP</a></li> <li class="section no-link">Anleitungen</li> <li><a href="/de/docs/Web/HTTP/Overview">Ein Überblick über HTTP</a></li> <li><a href="/de/docs/Web/HTTP/Session">Eine typische HTTP-Sitzung</a></li> <li><a href="/de/docs/Web/HTTP/Messages">HTTP-Nachrichten</a></li> <li><a href="/de/docs/Web/HTTP/MIME_types">MIME-Typen (IANA media types)</a></li> <li><a href="/de/docs/Web/HTTP/Compression">Compression in HTTP</a></li> <li><a href="/de/docs/Web/HTTP/Caching">HTTP-Caching</a></li> <li><a href="/de/docs/Web/HTTP/Authentication">HTTP-Authentifizierung</a></li> <li><a href="/de/docs/Web/HTTP/Cookies">Verwendung von HTTP-Cookies</a></li> <li><a href="/de/docs/Web/HTTP/Redirections">Weiterleitungen in HTTP</a></li> <li><a href="/de/docs/Web/HTTP/Conditional_requests">HTTP Conditional Requests</a></li> <li><a href="/de/docs/Web/HTTP/Range_requests">HTTP Range-Anfragen</a></li> <li><a href="/de/docs/Web/HTTP/Content_negotiation">Content-Negotiation</a></li> <li><a href="/de/docs/Web/HTTP/Connection_management_in_HTTP_1.x">Verbindungsmanagement in HTTP/1.x</a></li> <li><a href="/de/docs/Web/HTTP/Evolution_of_HTTP">Evolution des HTTP</a></li> <li><a href="/de/docs/Web/HTTP/Protocol_upgrade_mechanism">Protocol upgrade mechanism</a></li> <li><a href="/de/docs/Web/HTTP/Proxy_servers_and_tunneling">Proxy-Server und Tunneling</a></li> <li><a href="/de/docs/Web/HTTP/Client_hints">HTTP Client-Hinweise</a></li> <li class="toggle"> <details> <summary>HTTP-Sicherheit</summary> <ol> <li><a href="/de/docs/Web/Security/Practical_implementation_guides">Praktische Sicherheitsimplementierungsleitfäden</a></li> <li><a href="/en-US/observatory">HTTP Observatory</a></li> <li><a href="/de/docs/Web/HTTP/Permissions_Policy">Berechtigungsrichtlinie</a></li> <li><a href="/de/docs/Web/HTTP/CSP">Content Security Policy (CSP)</a></li> <li><a href="/de/docs/Web/HTTP/CORS">Cross-Origin Resource Sharing (CORS)</a></li> <li><a href="/de/docs/Web/HTTP/Cross-Origin_Resource_Policy">Cross-Origin Resource Policy (CORP)</a></li> <li><a href="/de/docs/Web/HTTP/Headers/Strict-Transport-Security">Strict-Transport-Security</a></li> </ol> </details> </li> <li class="section no-link">Referenzen</li> <li class="toggle"> <details open=""> <summary>HTTP-Header</summary> <ol><li><a href="/de/docs/Web/HTTP/Headers/Accept"><code>Accept</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Accept-CH"><code>Accept-CH</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Accept-Encoding"><code>Accept-Encoding</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Accept-Language"><code>Accept-Language</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Accept-Patch"><code>Accept-Patch</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Accept-Post"><code>Accept-Post</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Accept-Ranges"><code>Accept-Ranges</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials"><code>Access-Control-Allow-Credentials</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Allow-Headers"><code>Access-Control-Allow-Headers</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Allow-Methods"><code>Access-Control-Allow-Methods</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Allow-Origin"><code>Access-Control-Allow-Origin</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Expose-Headers"><code>Access-Control-Expose-Headers</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Max-Age"><code>Access-Control-Max-Age</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Request-Headers"><code>Access-Control-Request-Headers</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Access-Control-Request-Method"><code>Access-Control-Request-Method</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Age"><code>Age</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Allow"><code>Allow</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Alt-Svc"><code>Alt-Svc</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Alt-Used"><code>Alt-Used</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Attribution-Reporting-Eligible"><code>Attribution-Reporting-Eligible</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Source"><code>Attribution-Reporting-Register-Source</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Trigger"><code>Attribution-Reporting-Register-Trigger</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Authorization"><code>Authorization</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Cache-Control"><code>Cache-Control</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Clear-Site-Data"><code>Clear-Site-Data</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Connection"><code>Connection</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Digest"><code>Content-Digest</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Disposition"><code>Content-Disposition</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-DPR"><code>Content-DPR</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Encoding"><code>Content-Encoding</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Language"><code>Content-Language</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Length"><code>Content-Length</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Location"><code>Content-Location</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Range"><code>Content-Range</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy"><code>Content-Security-Policy</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only"><code>Content-Security-Policy-Report-Only</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Type"><code>Content-Type</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Cookie"><code>Cookie</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Critical-CH"><code>Critical-CH</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy"><code>Cross-Origin-Embedder-Policy</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy"><code>Cross-Origin-Opener-Policy</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy"><code>Cross-Origin-Resource-Policy</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Date"><code>Date</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Device-Memory"><code>Device-Memory</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/DNT"><code>DNT</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Downlink"><code>Downlink</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/DPR"><code>DPR</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Early-Data"><code>Early-Data</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/ECT"><code>ECT</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/ETag"><code>ETag</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Expect"><code>Expect</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Expect-CT"><code>Expect-CT</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Expires"><code>Expires</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Forwarded"><code>Forwarded</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/From"><code>From</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Host"><code>Host</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/If-Match"><code>If-Match</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/If-Modified-Since"><code>If-Modified-Since</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/If-None-Match"><code>If-None-Match</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/If-Range"><code>If-Range</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/If-Unmodified-Since"><code>If-Unmodified-Since</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Keep-Alive"><code>Keep-Alive</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Last-Modified"><code>Last-Modified</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Link"><code>Link</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Location"><code>Location</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Max-Forwards"><code>Max-Forwards</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/NEL"><code>NEL</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/No-Vary-Search"><code>No-Vary-Search</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Observe-Browsing-Topics"><code>Observe-Browsing-Topics</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Origin"><code>Origin</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Origin-Agent-Cluster"><code>Origin-Agent-Cluster</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy"><code>Permissions-Policy</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Pragma"><code>Pragma</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Priority"><code>Priority</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Proxy-Authenticate"><code>Proxy-Authenticate</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Proxy-Authorization"><code>Proxy-Authorization</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Range"><code>Range</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Referer"><code>Referer</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Referrer-Policy"><code>Referrer-Policy</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Refresh"><code>Refresh</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Report-To"><code>Report-To</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Reporting-Endpoints"><code>Reporting-Endpoints</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Repr-Digest"><code>Repr-Digest</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Retry-After"><code>Retry-After</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/RTT"><code>RTT</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Save-Data"><code>Save-Data</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-Browsing-Topics"><code>Sec-Browsing-Topics</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme"><code>Sec-CH-Prefers-Color-Scheme</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion"><code>Sec-CH-Prefers-Reduced-Motion</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Transparency"><code>Sec-CH-Prefers-Reduced-Transparency</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA"><code>Sec-CH-UA</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Arch"><code>Sec-CH-UA-Arch</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Bitness"><code>Sec-CH-UA-Bitness</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version"><code>Sec-CH-UA-Full-Version</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version-List"><code>Sec-CH-UA-Full-Version-List</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Mobile"><code>Sec-CH-UA-Mobile</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Model"><code>Sec-CH-UA-Model</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Platform"><code>Sec-CH-UA-Platform</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-CH-UA-Platform-Version"><code>Sec-CH-UA-Platform-Version</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-Fetch-Dest"><code>Sec-Fetch-Dest</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-Fetch-Mode"><code>Sec-Fetch-Mode</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-Fetch-Site"><code>Sec-Fetch-Site</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-Fetch-User"><code>Sec-Fetch-User</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-GPC"><code>Sec-GPC</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-Purpose"><code>Sec-Purpose</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-WebSocket-Accept"><code>Sec-WebSocket-Accept</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-WebSocket-Extensions"><code>Sec-WebSocket-Extensions</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-WebSocket-Key"><code>Sec-WebSocket-Key</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-WebSocket-Protocol"><code>Sec-WebSocket-Protocol</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Sec-WebSocket-Version"><code>Sec-WebSocket-Version</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Server"><code>Server</code></a></li><li><em><a href="/de/docs/Web/HTTP/Headers/Server-Timing" aria-current="page"><code>Server-Timing</code></a></em></li><li><a href="/de/docs/Web/HTTP/Headers/Service-Worker-Navigation-Preload"><code>Service-Worker-Navigation-Preload</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Set-Cookie"><code>Set-Cookie</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Set-Login"><code>Set-Login</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/SourceMap"><code>SourceMap</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Speculation-Rules"><code>Speculation-Rules</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Strict-Transport-Security"><code>Strict-Transport-Security</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Supports-Loading-Mode"><code>Supports-Loading-Mode</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/TE"><code>TE</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Timing-Allow-Origin"><code>Timing-Allow-Origin</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Tk"><code>Tk</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Trailer"><code>Trailer</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Transfer-Encoding"><code>Transfer-Encoding</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Upgrade"><code>Upgrade</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests"><code>Upgrade-Insecure-Requests</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/User-Agent"><code>User-Agent</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Vary"><code>Vary</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Via"><code>Via</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Viewport-Width"><code>Viewport-Width</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Want-Content-Digest"><code>Want-Content-Digest</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Want-Repr-Digest"><code>Want-Repr-Digest</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Warning"><code>Warning</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Width"><code>Width</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/WWW-Authenticate"><code>WWW-Authenticate</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/X-Content-Type-Options"><code>X-Content-Type-Options</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control"><code>X-DNS-Prefetch-Control</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-Forwarded-For"><code>X-Forwarded-For</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-Forwarded-Host"><code>X-Forwarded-Host</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-Forwarded-Proto"><code>X-Forwarded-Proto</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-Frame-Options"><code>X-Frame-Options</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-XSS-Protection"><code>X-XSS-Protection</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li></ol> </details> </li> <li class="toggle"> <details> <summary>HTTP-Anfragemethoden</summary> <ol><li><a href="/de/docs/Web/HTTP/Methods/CONNECT"><code>CONNECT</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/DELETE"><code>DELETE</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/GET"><code>GET</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/HEAD"><code>HEAD</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/OPTIONS"><code>OPTIONS</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/PATCH"><code>PATCH</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/POST"><code>POST</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/PUT"><code>PUT</code></a></li><li><a href="/de/docs/Web/HTTP/Methods/TRACE"><code>TRACE</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>HTTP-Antwortstatuscodes</summary> <ol><li><a href="/de/docs/Web/HTTP/Status/100"><code>100 Continue</code></a></li><li><a href="/de/docs/Web/HTTP/Status/101"><code>101 Switching Protocols</code></a></li><li><a href="/de/docs/Web/HTTP/Status/102"><code>102 Processing</code></a></li><li><a href="/de/docs/Web/HTTP/Status/103"><code>103 Early Hints</code></a></li><li><a href="/de/docs/Web/HTTP/Status/200"><code>200 OK</code></a></li><li><a href="/de/docs/Web/HTTP/Status/201"><code>201 Created</code></a></li><li><a href="/de/docs/Web/HTTP/Status/202"><code>202 Accepted</code></a></li><li><a href="/de/docs/Web/HTTP/Status/203"><code>203 Non-Authoritative Information</code></a></li><li><a href="/de/docs/Web/HTTP/Status/204"><code>204 No Content</code></a></li><li><a href="/de/docs/Web/HTTP/Status/205"><code>205 Reset Content</code></a></li><li><a href="/de/docs/Web/HTTP/Status/206"><code>206 Partial Content</code></a></li><li><a href="/de/docs/Web/HTTP/Status/207"><code>207 Multi-Status</code></a></li><li><a href="/de/docs/Web/HTTP/Status/208"><code>208 Already Reported</code></a></li><li><a href="/de/docs/Web/HTTP/Status/226"><code>226 IM Used</code></a></li><li><a href="/de/docs/Web/HTTP/Status/300"><code>300 Multiple Choices</code></a></li><li><a href="/de/docs/Web/HTTP/Status/301"><code>301 Moved Permanently</code></a></li><li><a href="/de/docs/Web/HTTP/Status/302"><code>302 Found</code></a></li><li><a href="/de/docs/Web/HTTP/Status/303"><code>303 See Other</code></a></li><li><a href="/de/docs/Web/HTTP/Status/304"><code>304 Not Modified</code></a></li><li><a href="/de/docs/Web/HTTP/Status/307"><code>307 Temporary Redirect</code></a></li><li><a href="/de/docs/Web/HTTP/Status/308"><code>308 Permanent Redirect</code></a></li><li><a href="/de/docs/Web/HTTP/Status/400"><code>400 Bad Request</code></a></li><li><a href="/de/docs/Web/HTTP/Status/401"><code>401 Unauthorized</code></a></li><li><a href="/de/docs/Web/HTTP/Status/402"><code>402 Payment Required</code></a></li><li><a href="/de/docs/Web/HTTP/Status/403"><code>403 Forbidden</code></a></li><li><a href="/de/docs/Web/HTTP/Status/404"><code>404 Not Found</code></a></li><li><a href="/de/docs/Web/HTTP/Status/405"><code>405 Method Not Allowed</code></a></li><li><a href="/de/docs/Web/HTTP/Status/406"><code>406 Not Acceptable</code></a></li><li><a href="/de/docs/Web/HTTP/Status/407"><code>407 Proxy Authentication Required</code></a></li><li><a href="/de/docs/Web/HTTP/Status/408"><code>408 Request Timeout</code></a></li><li><a href="/de/docs/Web/HTTP/Status/409"><code>409 Conflict</code></a></li><li><a href="/de/docs/Web/HTTP/Status/410"><code>410 Gone</code></a></li><li><a href="/de/docs/Web/HTTP/Status/411"><code>411 Length Required</code></a></li><li><a href="/de/docs/Web/HTTP/Status/412"><code>412 Precondition Failed</code></a></li><li><a href="/de/docs/Web/HTTP/Status/413"><code>413 Content Too Large</code></a></li><li><a href="/de/docs/Web/HTTP/Status/414"><code>414 URI Too Long</code></a></li><li><a href="/de/docs/Web/HTTP/Status/415"><code>415 Unsupported Media Type</code></a></li><li><a href="/de/docs/Web/HTTP/Status/416"><code>416 Range Not Satisfiable</code></a></li><li><a href="/de/docs/Web/HTTP/Status/417"><code>417 Expectation Failed</code></a></li><li><a href="/de/docs/Web/HTTP/Status/418"><code>418 I'm a teapot</code></a></li><li><a href="/de/docs/Web/HTTP/Status/421"><code>421 Misdirected Request</code></a></li><li><a href="/de/docs/Web/HTTP/Status/422"><code>422 Unprocessable Content</code></a></li><li><a href="/de/docs/Web/HTTP/Status/423"><code>423 Locked</code></a></li><li><a href="/de/docs/Web/HTTP/Status/424"><code>424 Failed Dependency</code></a></li><li><a href="/de/docs/Web/HTTP/Status/425"><code>425 Too Early</code></a></li><li><a href="/de/docs/Web/HTTP/Status/426"><code>426 Upgrade Required</code></a></li><li><a href="/de/docs/Web/HTTP/Status/428"><code>428 Precondition Required</code></a></li><li><a href="/de/docs/Web/HTTP/Status/429"><code>429 Too Many Requests</code></a></li><li><a href="/de/docs/Web/HTTP/Status/431"><code>431 Request Header Fields Too Large</code></a></li><li><a href="/de/docs/Web/HTTP/Status/451"><code>451 Unavailable For Legal Reasons</code></a></li><li><a href="/de/docs/Web/HTTP/Status/500"><code>500 Internal Server Error</code></a></li><li><a href="/de/docs/Web/HTTP/Status/501"><code>501 Not Implemented</code></a></li><li><a href="/de/docs/Web/HTTP/Status/502"><code>502 Bad Gateway</code></a></li><li><a href="/de/docs/Web/HTTP/Status/503"><code>503 Service Unavailable</code></a></li><li><a href="/de/docs/Web/HTTP/Status/504"><code>504 Gateway Timeout</code></a></li><li><a href="/de/docs/Web/HTTP/Status/505"><code>505 HTTP Version Not Supported</code></a></li><li><a href="/de/docs/Web/HTTP/Status/506"><code>506 Variant Also Negotiates</code></a></li><li><a href="/de/docs/Web/HTTP/Status/507"><code>507 Insufficient Storage</code></a></li><li><a href="/de/docs/Web/HTTP/Status/508"><code>508 Loop Detected</code></a></li><li><a href="/de/docs/Web/HTTP/Status/510"><code>510 Not Extended</code></a></li><li><a href="/de/docs/Web/HTTP/Status/511"><code>511 Network Authentication Required</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>CSP-Direktiven</summary> <ol><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/base-uri"><code>CSP: base-uri</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/block-all-mixed-content"><code>CSP: block-all-mixed-content</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/child-src"><code>CSP: child-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/connect-src"><code>CSP: connect-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/default-src"><code>CSP: default-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/fenced-frame-src"><code>CSP: fenced-frame-src</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/font-src"><code>CSP: font-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/form-action"><code>CSP: form-action</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors"><code>CSP: frame-ancestors</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/frame-src"><code>CSP: frame-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/img-src"><code>CSP: img-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/manifest-src"><code>CSP: manifest-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/media-src"><code>CSP: media-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/object-src"><code>CSP: object-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/prefetch-src"><code>CSP: prefetch-src</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/report-to"><code>CSP: report-to</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/report-uri"><code>CSP: report-uri</code></a><abbr class="icon icon-deprecated" title="Veraltet. Nicht für neue Websites verwenden."> <span class="visually-hidden">Veraltet</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/require-trusted-types-for"><code>CSP: require-trusted-types-for</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/sandbox"><code>CSP: sandbox</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/script-src"><code>CSP: script-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr"><code>CSP: script-src-attr</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem"><code>CSP: script-src-elem</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/style-src"><code>CSP: style-src</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr"><code>CSP: style-src-attr</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem"><code>CSP: style-src-elem</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/trusted-types"><code>CSP: trusted-types</code></a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/upgrade-insecure-requests"><code>CSP: upgrade-insecure-requests</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Content-Security-Policy/worker-src"><code>CSP: worker-src</code></a></li></ol> </details> </li> <li class="toggle"> <details> <summary>CORS-Fehler</summary> <ol><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSDisabled">Reason: CORS disabled</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSAllowOriginNotMatchingOrigin">Reason: CORS header 'Access-Control-Allow-Origin' does not match 'xyz'</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowOrigin">Reason: CORS header 'Access-Control-Allow-Origin' missing</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSOriginHeaderNotAdded">Reason: CORS header 'Origin' cannot be added</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed">Reason: CORS preflight channel did not succeed</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSDidNotSucceed">Reason: CORS request did not succeed</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed">Reason: CORS request external redirect not allowed</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp">Reason: CORS request not HTTP</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredentials">Reason: Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*'</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMethodNotFound">Reason: Did not find method in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMIssingAllowCredentials">Reason: expected 'true' in CORS header 'Access-Control-Allow-Credentials'</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowHeader">Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Headers'</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowMethod">Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight">Reason: missing token 'xyz' in CORS header 'Access-Control-Allow-Headers' from CORS preflight channel</a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMultipleAllowOriginNotAllowed">Reason: Multiple CORS header 'Access-Control-Allow-Origin' not allowed</a></li></ol> </details> </li> <li class="toggle"> <details> <summary>Permissions-Policy Direktiven</summary> <ol><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/accelerometer">Permissions-Policy: accelerometer</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor">Permissions-Policy: ambient-light-sensor</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/attribution-reporting">Permissions-Policy: attribution-reporting</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/autoplay">Permissions-Policy: autoplay</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth">Permissions-Policy: bluetooth</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/browsing-topics">Permissions-Policy: browsing-topics</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/camera">Permissions-Policy: camera</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/compute-pressure">Permissions-Policy: compute-pressure</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/display-capture">Permissions-Policy: display-capture</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/document-domain">Permissions-Policy: document-domain</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media">Permissions-Policy: encrypted-media</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen">Permissions-Policy: fullscreen</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/gamepad">Permissions-Policy: gamepad</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/geolocation">Permissions-Policy: geolocation</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope">Permissions-Policy: gyroscope</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/hid">Permissions-Policy: hid</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get">Permissions-Policy: identity-credentials-get</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/idle-detection">Permissions-Policy: idle-detection</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts">Permissions-Policy: local-fonts</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer">Permissions-Policy: magnetometer</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/microphone">Permissions-Policy: microphone</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/midi">Permissions-Policy: midi</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials">Permissions-Policy: otp-credentials</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/payment">Permissions-Policy: payment</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/picture-in-picture">Permissions-Policy: picture-in-picture</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create">Permissions-Policy: publickey-credentials-create</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get">Permissions-Policy: publickey-credentials-get</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/screen-wake-lock">Permissions-Policy: screen-wake-lock</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/serial">Permissions-Policy: serial</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection">Permissions-Policy: speaker-selection</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/storage-access">Permissions-Policy: storage-access</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/usb">Permissions-Policy: usb</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/web-share">Permissions-Policy: web-share</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/window-management">Permissions-Policy: window-management</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking">Permissions-Policy: xr-spatial-tracking</a><abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></li></ol> </details> </li> <li><a href="/de/docs/Web/HTTP/Resources_and_specifications">HTTP-Ressourcen und Spezifikationen</a></li> </ol> </div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#syntax">Syntax</a></li><li class="document-toc-item "><a class="document-toc-link" href="#datenschutz_und_sicherheit">Datenschutz und Sicherheit</a></li><li class="document-toc-item "><a class="document-toc-link" href="#performanceservertiming-schnittstelle">PerformanceServerTiming-Schnittstelle</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="de"><header><h1>Server-Timing</h1><details class="baseline-indicator low"><summary><span class="indicator" role="img" aria-label="Baseline Check"></span><h2>Baseline <span class="not-bold">2023</span></h2><div class="pill">Newly available</div><div class="browsers"><span class="engine" title="Supported in Chrome and Edge"><span class="browser chrome supported" role="img" aria-label="Chrome check"></span><span class="browser edge supported" role="img" aria-label="Edge check"></span></span><span class="engine" title="Supported in Firefox"><span class="browser firefox supported" role="img" aria-label="Firefox check"></span></span><span class="engine" title="Supported in Safari"><span class="browser safari supported" role="img" aria-label="Safari check"></span></span></div><span class="icon icon-chevron "></span></summary><div class="extra"><p>Since March 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.</p><ul><li><a href="/de/docs/Glossary/Baseline/Compatibility" data-glean="baseline_link_learn_more" target="_blank" class="learn-more">Learn more</a></li><li><a href="#browser-kompatibilität" data-glean="baseline_link_bcd_table">See full compatibility</a></li><li><a href="https://survey.alchemer.com/s3/7634825/MDN-baseline-feedback?page=%2Fde%2Fdocs%2FWeb%2FHTTP%2FHeaders%2FServer-Timing&level=low" data-glean="baseline_link_feedback" class="feedback-link" target="_blank" rel="noreferrer">Report feedback</a></li></ul></div></details></header><div class="section-content"><p>Der <strong><code>Server-Timing</code></strong>-Header kommuniziert eine oder mehrere Metriken und Beschreibungen für einen gegebenen Anfrage-Antwort-Zyklus. Er wird verwendet, um Backend-Server-Timing-Metriken (z. B. Datenbank-Lesen/Schreiben, CPU-Zeit, Dateisystemzugriff usw.) in den Entwicklerwerkzeugen im Browser des Benutzers oder in der <a href="/de/docs/Web/API/PerformanceServerTiming"><code>PerformanceServerTiming</code></a>-Schnittstelle anzuzeigen.</p> <figure class="table-container"><table class="properties"> <tbody> <tr> <th scope="row">Header-Typ</th> <td><a href="/de/docs/Glossary/Response_header">Response-Header</a></td> </tr> <tr> <th scope="row"><a href="/de/docs/Glossary/Forbidden_header_name">Verbotener Header-Name</a></th> <td>nein</td> </tr> </tbody> </table></figure></div><section aria-labelledby="syntax"><h2 id="syntax"><a href="#syntax">Syntax</a></h2><div class="section-content"><p>Die Syntax des <code>Server-Timing</code>-Headers ermöglicht es Ihnen, Metriken auf verschiedene Arten zu kommunizieren: nur der Servermetriken-Name, Metriken mit Wert, Metriken mit Wert und Beschreibung sowie Metriken mit Beschreibung.</p> <p>Dieser Header kann eine oder mehrere Metriken enthalten, die durch Kommas getrennt sind. Jede Metrik hat einen Namen, eine optionale Dauer und eine optionale Beschreibung. Diese Komponenten werden durch Semikolons getrennt.</p> <p>Die Komponente für die Dauer besteht aus dem String <code>"dur"</code>, gefolgt von <code>"="</code>, gefolgt vom Wert, wie <code>"dur=23.2"</code>. Die Komponente für die Beschreibung besteht aus dem String <code>"desc"</code>, gefolgt von <code>"="</code>, gefolgt vom Wert, wie <code>"desc=DB lookup"</code>.</p> <p>Die Spezifikation empfiehlt, dass Namen und Beschreibungen so kurz wie möglich gehalten werden sollten (verwenden Sie Abkürzungen und lassen Sie optionale Werte nach Möglichkeit weg), um den HTTP-Overhead zu minimieren.</p> <div class="code-example"><div class="example-header"><span class="language-name">http</span></div><pre class="brush: http notranslate"><code>// Single metric without value Server-Timing: missedCache // Single metric with value Server-Timing: cpu;dur=2.4 // Single metric with description and value Server-Timing: cache;desc="Cache Read";dur=23.2 // Two metrics with value Server-Timing: db;dur=53, app;dur=47.2 // Server-Timing as trailer Trailer: Server-Timing --- response body --- Server-Timing: total;dur=123.4 </code></pre></div></div></section><section aria-labelledby="datenschutz_und_sicherheit"><h2 id="datenschutz_und_sicherheit"><a href="#datenschutz_und_sicherheit">Datenschutz und Sicherheit</a></h2><div class="section-content"><p>Der <code>Server-Timing</code>-Header kann potenziell sensible Anwendungs- und Infrastrukturdaten preisgeben. Überlegen Sie, welche Metriken wann und an wen auf Serverseite zurückgegeben werden. Zum Beispiel könnten Sie Metriken nur authentifizierten Benutzern anzeigen und der Öffentlichkeit nichts zeigen.</p></div></section><section aria-labelledby="performanceservertiming-schnittstelle"><h2 id="performanceservertiming-schnittstelle"><a href="#performanceservertiming-schnittstelle">PerformanceServerTiming-Schnittstelle</a></h2><div class="section-content"><p>Zusätzlich zur Darstellung von <code>Server-Timing</code>-Header-Metriken in den Entwicklerwerkzeugen des Browsers ermöglicht die <a href="/de/docs/Web/API/PerformanceServerTiming"><code>PerformanceServerTiming</code></a>-Schnittstelle Werkzeugen, Metriken automatisch aus JavaScript zu sammeln und zu verarbeiten. Diese Schnittstelle ist auf denselben Ursprung beschränkt, Sie können jedoch den <a href="/de/docs/Web/HTTP/Headers/Timing-Allow-Origin"><code>Timing-Allow-Origin</code></a>-Header verwenden, um die Domänen anzugeben, die auf die Servermetriken zugreifen dürfen. Die Schnittstelle ist nur in sicheren Kontexten (HTTPS) in einigen Browsern verfügbar.</p> <p>Die Komponenten des <code>Server-Timing</code>-Headers entsprechen den <a href="/de/docs/Web/API/PerformanceServerTiming"><code>PerformanceServerTiming</code></a>-Eigenschaften wie folgt:</p> <ul> <li><code>"name"</code> -> <a href="/de/docs/Web/API/PerformanceServerTiming/name"><code>PerformanceServerTiming.name</code></a></li> <li><code>"dur"</code> -> <a href="/de/docs/Web/API/PerformanceServerTiming/duration"><code>PerformanceServerTiming.duration</code></a></li> <li><code>"desc"</code> -> <a href="/de/docs/Web/API/PerformanceServerTiming/description"><code>PerformanceServerTiming.description</code></a></li> </ul></div></section><h2 id="spezifikationen"><a href="#spezifikationen">Spezifikationen</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://w3c.github.io/server-timing/#the-server-timing-header-field">Server Timing <br/><small># the-server-timing-header-field</small></a></td></tr></tbody></table><h2 id="browser-kompatibilität"><a href="#browser-kompatibilität">Browser-Kompatibilität</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. Enable JavaScript to view data.</noscript></p><section aria-labelledby="siehe_auch"><h2 id="siehe_auch"><a href="#siehe_auch">Siehe auch</a></h2><div class="section-content"><ul> <li><a href="/de/docs/Web/API/PerformanceServerTiming"><code>PerformanceServerTiming</code></a></li> </ul></div></section></article><aside class="article-footer"><div class="article-footer-inner"><div class="svg-container"><svg xmlns="http://www.w3.org/2000/svg" width="162" height="162" viewBox="0 0 162 162" fill="none" role="none"><mask id="b" fill="#fff"><path d="M97.203 47.04c8.113-7.886 18.004-13.871 28.906-17.492a78 78 0 0 1 33.969-3.39c11.443 1.39 22.401 5.295 32.024 11.411s17.656 14.28 23.476 23.86c5.819 9.579 9.269 20.318 10.083 31.385a69.85 69.85 0 0 1-5.387 32.44c-4.358 10.272-11.115 19.443-19.747 26.801-8.632 7.359-18.908 12.709-30.034 15.637l-6.17-21.698c7.666-2.017 14.746-5.703 20.694-10.773 5.948-5.071 10.603-11.389 13.606-18.467a48.14 48.14 0 0 0 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href=\"/de/docs/Web/HTTP/Messages\">HTTP-Nachrichten</a></li>\n <li><a href=\"/de/docs/Web/HTTP/MIME_types\">MIME-Typen (IANA media types)</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Compression\">Compression in HTTP</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Caching\">HTTP-Caching</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Authentication\">HTTP-Authentifizierung</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Cookies\">Verwendung von HTTP-Cookies</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Redirections\">Weiterleitungen in HTTP</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Conditional_requests\">HTTP Conditional Requests</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Range_requests\">HTTP Range-Anfragen</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Content_negotiation\">Content-Negotiation</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Connection_management_in_HTTP_1.x\">Verbindungsmanagement in HTTP/1.x</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Evolution_of_HTTP\">Evolution des HTTP</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Protocol_upgrade_mechanism\">Protocol upgrade mechanism</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Proxy_servers_and_tunneling\">Proxy-Server und Tunneling</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Client_hints\">HTTP Client-Hinweise</a></li>\n <li class=\"toggle\">\n <details>\n <summary>HTTP-Sicherheit</summary>\n <ol>\n <li><a href=\"/de/docs/Web/Security/Practical_implementation_guides\">Praktische Sicherheitsimplementierungsleitfäden</a></li>\n <li><a href=\"/en-US/observatory\">HTTP Observatory</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Permissions_Policy\">Berechtigungsrichtlinie</a></li>\n <li><a href=\"/de/docs/Web/HTTP/CSP\">Content Security Policy (CSP)</a></li>\n <li><a href=\"/de/docs/Web/HTTP/CORS\">Cross-Origin Resource Sharing (CORS)</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Cross-Origin_Resource_Policy\">Cross-Origin Resource Policy (CORP)</a></li>\n <li><a href=\"/de/docs/Web/HTTP/Headers/Strict-Transport-Security\">Strict-Transport-Security</a></li>\n </ol>\n </details>\n </li>\n <li class=\"section no-link\">Referenzen</li>\n <li class=\"toggle\">\n <details open=\"\">\n <summary>HTTP-Header</summary>\n <ol><li><a href=\"/de/docs/Web/HTTP/Headers/Accept\"><code>Accept</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Accept-CH\"><code>Accept-CH</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Accept-Encoding\"><code>Accept-Encoding</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Accept-Language\"><code>Accept-Language</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Accept-Patch\"><code>Accept-Patch</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Accept-Post\"><code>Accept-Post</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Accept-Ranges\"><code>Accept-Ranges</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials\"><code>Access-Control-Allow-Credentials</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Allow-Headers\"><code>Access-Control-Allow-Headers</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Allow-Methods\"><code>Access-Control-Allow-Methods</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Allow-Origin\"><code>Access-Control-Allow-Origin</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Expose-Headers\"><code>Access-Control-Expose-Headers</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Max-Age\"><code>Access-Control-Max-Age</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Request-Headers\"><code>Access-Control-Request-Headers</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Access-Control-Request-Method\"><code>Access-Control-Request-Method</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Age\"><code>Age</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Allow\"><code>Allow</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Alt-Svc\"><code>Alt-Svc</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Alt-Used\"><code>Alt-Used</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Attribution-Reporting-Eligible\"><code>Attribution-Reporting-Eligible</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Source\"><code>Attribution-Reporting-Register-Source</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Attribution-Reporting-Register-Trigger\"><code>Attribution-Reporting-Register-Trigger</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Authorization\"><code>Authorization</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Cache-Control\"><code>Cache-Control</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Clear-Site-Data\"><code>Clear-Site-Data</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Connection\"><code>Connection</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Digest\"><code>Content-Digest</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Disposition\"><code>Content-Disposition</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-DPR\"><code>Content-DPR</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Encoding\"><code>Content-Encoding</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Language\"><code>Content-Language</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Length\"><code>Content-Length</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Location\"><code>Content-Location</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Range\"><code>Content-Range</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy\"><code>Content-Security-Policy</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only\"><code>Content-Security-Policy-Report-Only</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Type\"><code>Content-Type</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Cookie\"><code>Cookie</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Critical-CH\"><code>Critical-CH</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Cross-Origin-Embedder-Policy\"><code>Cross-Origin-Embedder-Policy</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Cross-Origin-Opener-Policy\"><code>Cross-Origin-Opener-Policy</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Cross-Origin-Resource-Policy\"><code>Cross-Origin-Resource-Policy</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Date\"><code>Date</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Device-Memory\"><code>Device-Memory</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/DNT\"><code>DNT</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Downlink\"><code>Downlink</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/DPR\"><code>DPR</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Early-Data\"><code>Early-Data</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/ECT\"><code>ECT</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/ETag\"><code>ETag</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Expect\"><code>Expect</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Expect-CT\"><code>Expect-CT</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Expires\"><code>Expires</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Forwarded\"><code>Forwarded</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/From\"><code>From</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Host\"><code>Host</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/If-Match\"><code>If-Match</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/If-Modified-Since\"><code>If-Modified-Since</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/If-None-Match\"><code>If-None-Match</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/If-Range\"><code>If-Range</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/If-Unmodified-Since\"><code>If-Unmodified-Since</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Keep-Alive\"><code>Keep-Alive</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Last-Modified\"><code>Last-Modified</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Link\"><code>Link</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Location\"><code>Location</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Max-Forwards\"><code>Max-Forwards</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/NEL\"><code>NEL</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/No-Vary-Search\"><code>No-Vary-Search</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Observe-Browsing-Topics\"><code>Observe-Browsing-Topics</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Origin\"><code>Origin</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Origin-Agent-Cluster\"><code>Origin-Agent-Cluster</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy\"><code>Permissions-Policy</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Pragma\"><code>Pragma</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Priority\"><code>Priority</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Proxy-Authenticate\"><code>Proxy-Authenticate</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Proxy-Authorization\"><code>Proxy-Authorization</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Range\"><code>Range</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Referer\"><code>Referer</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Referrer-Policy\"><code>Referrer-Policy</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Refresh\"><code>Refresh</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Report-To\"><code>Report-To</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Reporting-Endpoints\"><code>Reporting-Endpoints</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Repr-Digest\"><code>Repr-Digest</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Retry-After\"><code>Retry-After</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/RTT\"><code>RTT</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Save-Data\"><code>Save-Data</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-Browsing-Topics\"><code>Sec-Browsing-Topics</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-Prefers-Color-Scheme\"><code>Sec-CH-Prefers-Color-Scheme</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Motion\"><code>Sec-CH-Prefers-Reduced-Motion</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-Prefers-Reduced-Transparency\"><code>Sec-CH-Prefers-Reduced-Transparency</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA\"><code>Sec-CH-UA</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Arch\"><code>Sec-CH-UA-Arch</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Bitness\"><code>Sec-CH-UA-Bitness</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version\"><code>Sec-CH-UA-Full-Version</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Full-Version-List\"><code>Sec-CH-UA-Full-Version-List</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Mobile\"><code>Sec-CH-UA-Mobile</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Model\"><code>Sec-CH-UA-Model</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Platform\"><code>Sec-CH-UA-Platform</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-CH-UA-Platform-Version\"><code>Sec-CH-UA-Platform-Version</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-Fetch-Dest\"><code>Sec-Fetch-Dest</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-Fetch-Mode\"><code>Sec-Fetch-Mode</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-Fetch-Site\"><code>Sec-Fetch-Site</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-Fetch-User\"><code>Sec-Fetch-User</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-GPC\"><code>Sec-GPC</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-Purpose\"><code>Sec-Purpose</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-WebSocket-Accept\"><code>Sec-WebSocket-Accept</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-WebSocket-Extensions\"><code>Sec-WebSocket-Extensions</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-WebSocket-Key\"><code>Sec-WebSocket-Key</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-WebSocket-Protocol\"><code>Sec-WebSocket-Protocol</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Sec-WebSocket-Version\"><code>Sec-WebSocket-Version</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Server\"><code>Server</code></a></li><li><em><a href=\"/de/docs/Web/HTTP/Headers/Server-Timing\" aria-current=\"page\"><code>Server-Timing</code></a></em></li><li><a href=\"/de/docs/Web/HTTP/Headers/Service-Worker-Navigation-Preload\"><code>Service-Worker-Navigation-Preload</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Set-Cookie\"><code>Set-Cookie</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Set-Login\"><code>Set-Login</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/SourceMap\"><code>SourceMap</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Speculation-Rules\"><code>Speculation-Rules</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Strict-Transport-Security\"><code>Strict-Transport-Security</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Supports-Loading-Mode\"><code>Supports-Loading-Mode</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/TE\"><code>TE</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Timing-Allow-Origin\"><code>Timing-Allow-Origin</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Tk\"><code>Tk</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Trailer\"><code>Trailer</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Transfer-Encoding\"><code>Transfer-Encoding</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Upgrade\"><code>Upgrade</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Upgrade-Insecure-Requests\"><code>Upgrade-Insecure-Requests</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/User-Agent\"><code>User-Agent</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Vary\"><code>Vary</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Via\"><code>Via</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Viewport-Width\"><code>Viewport-Width</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Want-Content-Digest\"><code>Want-Content-Digest</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Want-Repr-Digest\"><code>Want-Repr-Digest</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Warning\"><code>Warning</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Width\"><code>Width</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/WWW-Authenticate\"><code>WWW-Authenticate</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Content-Type-Options\"><code>X-Content-Type-Options</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control\"><code>X-DNS-Prefetch-Control</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Forwarded-For\"><code>X-Forwarded-For</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Forwarded-Host\"><code>X-Forwarded-Host</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Forwarded-Proto\"><code>X-Forwarded-Proto</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Frame-Options\"><code>X-Frame-Options</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-XSS-Protection\"><code>X-XSS-Protection</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>HTTP-Anfragemethoden</summary>\n <ol><li><a href=\"/de/docs/Web/HTTP/Methods/CONNECT\"><code>CONNECT</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/DELETE\"><code>DELETE</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/GET\"><code>GET</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/HEAD\"><code>HEAD</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/OPTIONS\"><code>OPTIONS</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/PATCH\"><code>PATCH</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/POST\"><code>POST</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/PUT\"><code>PUT</code></a></li><li><a href=\"/de/docs/Web/HTTP/Methods/TRACE\"><code>TRACE</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>HTTP-Antwortstatuscodes</summary>\n <ol><li><a href=\"/de/docs/Web/HTTP/Status/100\"><code>100 Continue</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/101\"><code>101 Switching Protocols</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/102\"><code>102 Processing</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/103\"><code>103 Early Hints</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/200\"><code>200 OK</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/201\"><code>201 Created</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/202\"><code>202 Accepted</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/203\"><code>203 Non-Authoritative Information</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/204\"><code>204 No Content</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/205\"><code>205 Reset Content</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/206\"><code>206 Partial Content</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/207\"><code>207 Multi-Status</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/208\"><code>208 Already Reported</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/226\"><code>226 IM Used</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/300\"><code>300 Multiple Choices</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/301\"><code>301 Moved Permanently</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/302\"><code>302 Found</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/303\"><code>303 See Other</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/304\"><code>304 Not Modified</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/307\"><code>307 Temporary Redirect</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/308\"><code>308 Permanent Redirect</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/400\"><code>400 Bad Request</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/401\"><code>401 Unauthorized</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/402\"><code>402 Payment Required</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/403\"><code>403 Forbidden</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/404\"><code>404 Not Found</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/405\"><code>405 Method Not Allowed</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/406\"><code>406 Not Acceptable</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/407\"><code>407 Proxy Authentication Required</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/408\"><code>408 Request Timeout</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/409\"><code>409 Conflict</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/410\"><code>410 Gone</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/411\"><code>411 Length Required</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/412\"><code>412 Precondition Failed</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/413\"><code>413 Content Too Large</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/414\"><code>414 URI Too Long</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/415\"><code>415 Unsupported Media Type</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/416\"><code>416 Range Not Satisfiable</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/417\"><code>417 Expectation Failed</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/418\"><code>418 I'm a teapot</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/421\"><code>421 Misdirected Request</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/422\"><code>422 Unprocessable Content</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/423\"><code>423 Locked</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/424\"><code>424 Failed Dependency</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/425\"><code>425 Too Early</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/426\"><code>426 Upgrade Required</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/428\"><code>428 Precondition Required</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/429\"><code>429 Too Many Requests</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/431\"><code>431 Request Header Fields Too Large</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/451\"><code>451 Unavailable For Legal Reasons</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/500\"><code>500 Internal Server Error</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/501\"><code>501 Not Implemented</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/502\"><code>502 Bad Gateway</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/503\"><code>503 Service Unavailable</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/504\"><code>504 Gateway Timeout</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/505\"><code>505 HTTP Version Not Supported</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/506\"><code>506 Variant Also Negotiates</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/507\"><code>507 Insufficient Storage</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/508\"><code>508 Loop Detected</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/510\"><code>510 Not Extended</code></a></li><li><a href=\"/de/docs/Web/HTTP/Status/511\"><code>511 Network Authentication Required</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>CSP-Direktiven</summary>\n <ol><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/base-uri\"><code>CSP: base-uri</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/block-all-mixed-content\"><code>CSP: block-all-mixed-content</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/child-src\"><code>CSP: child-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/connect-src\"><code>CSP: connect-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/default-src\"><code>CSP: default-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/fenced-frame-src\"><code>CSP: fenced-frame-src</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/font-src\"><code>CSP: font-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/form-action\"><code>CSP: form-action</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/frame-ancestors\"><code>CSP: frame-ancestors</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/frame-src\"><code>CSP: frame-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/img-src\"><code>CSP: img-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/manifest-src\"><code>CSP: manifest-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/media-src\"><code>CSP: media-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/object-src\"><code>CSP: object-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/prefetch-src\"><code>CSP: prefetch-src</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/report-to\"><code>CSP: report-to</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/report-uri\"><code>CSP: report-uri</code></a><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht für neue Websites verwenden.\">\n <span class=\"visually-hidden\">Veraltet</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/require-trusted-types-for\"><code>CSP: require-trusted-types-for</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/sandbox\"><code>CSP: sandbox</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/script-src\"><code>CSP: script-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-attr\"><code>CSP: script-src-attr</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/script-src-elem\"><code>CSP: script-src-elem</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/style-src\"><code>CSP: style-src</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-attr\"><code>CSP: style-src-attr</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/style-src-elem\"><code>CSP: style-src-elem</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/trusted-types\"><code>CSP: trusted-types</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/upgrade-insecure-requests\"><code>CSP: upgrade-insecure-requests</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Content-Security-Policy/worker-src\"><code>CSP: worker-src</code></a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>CORS-Fehler</summary>\n <ol><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSDisabled\">Reason: CORS disabled</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSAllowOriginNotMatchingOrigin\">Reason: CORS header 'Access-Control-Allow-Origin' does not match 'xyz'</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowOrigin\">Reason: CORS header 'Access-Control-Allow-Origin' missing</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSOriginHeaderNotAdded\">Reason: CORS header 'Origin' cannot be added</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed\">Reason: CORS preflight channel did not succeed</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSDidNotSucceed\">Reason: CORS request did not succeed</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed\">Reason: CORS request external redirect not allowed</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp\">Reason: CORS request not HTTP</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredentials\">Reason: Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*'</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMethodNotFound\">Reason: Did not find method in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMIssingAllowCredentials\">Reason: expected 'true' in CORS header 'Access-Control-Allow-Credentials'</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowHeader\">Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Headers'</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowMethod\">Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Methods'</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight\">Reason: missing token 'xyz' in CORS header 'Access-Control-Allow-Headers' from CORS preflight channel</a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMultipleAllowOriginNotAllowed\">Reason: Multiple CORS header 'Access-Control-Allow-Origin' not allowed</a></li></ol>\n </details>\n </li>\n <li class=\"toggle\">\n <details>\n <summary>Permissions-Policy Direktiven</summary>\n <ol><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/accelerometer\">Permissions-Policy: accelerometer</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor\">Permissions-Policy: ambient-light-sensor</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/attribution-reporting\">Permissions-Policy: attribution-reporting</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/autoplay\">Permissions-Policy: autoplay</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth\">Permissions-Policy: bluetooth</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/browsing-topics\">Permissions-Policy: browsing-topics</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie die Unterstützung in verschiedenen Browsern, bevor Sie es verwenden.\">\n <span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/camera\">Permissions-Policy: camera</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/compute-pressure\">Permissions-Policy: compute-pressure</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/display-capture\">Permissions-Policy: display-capture</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/document-domain\">Permissions-Policy: document-domain</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media\">Permissions-Policy: encrypted-media</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen\">Permissions-Policy: fullscreen</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/gamepad\">Permissions-Policy: gamepad</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/geolocation\">Permissions-Policy: geolocation</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope\">Permissions-Policy: gyroscope</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/hid\">Permissions-Policy: hid</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get\">Permissions-Policy: identity-credentials-get</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/idle-detection\">Permissions-Policy: idle-detection</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts\">Permissions-Policy: local-fonts</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer\">Permissions-Policy: magnetometer</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/microphone\">Permissions-Policy: microphone</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/midi\">Permissions-Policy: midi</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials\">Permissions-Policy: otp-credentials</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/payment\">Permissions-Policy: payment</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/picture-in-picture\">Permissions-Policy: picture-in-picture</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create\">Permissions-Policy: publickey-credentials-create</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get\">Permissions-Policy: publickey-credentials-get</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/screen-wake-lock\">Permissions-Policy: screen-wake-lock</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/serial\">Permissions-Policy: serial</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection\">Permissions-Policy: speaker-selection</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/storage-access\">Permissions-Policy: storage-access</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/usb\">Permissions-Policy: usb</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/web-share\">Permissions-Policy: web-share</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/window-management\">Permissions-Policy: window-management</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking\">Permissions-Policy: xr-spatial-tracking</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></li></ol>\n </details>\n </li>\n <li><a href=\"/de/docs/Web/HTTP/Resources_and_specifications\">HTTP-Ressourcen und Spezifikationen</a></li>\n </ol>\n","sidebarMacro":"HTTPSidebar","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p>Der <strong><code>Server-Timing</code></strong>-Header kommuniziert eine oder mehrere Metriken und Beschreibungen für einen gegebenen Anfrage-Antwort-Zyklus. Er wird verwendet, um Backend-Server-Timing-Metriken (z. B. Datenbank-Lesen/Schreiben, CPU-Zeit, Dateisystemzugriff usw.) in den Entwicklerwerkzeugen im Browser des Benutzers oder in der <a href=\"/de/docs/Web/API/PerformanceServerTiming\"><code>PerformanceServerTiming</code></a>-Schnittstelle anzuzeigen.</p>\n<figure class=\"table-container\"><table class=\"properties\">\n <tbody>\n <tr>\n <th scope=\"row\">Header-Typ</th>\n <td><a href=\"/de/docs/Glossary/Response_header\">Response-Header</a></td>\n </tr>\n <tr>\n <th scope=\"row\"><a href=\"/de/docs/Glossary/Forbidden_header_name\">Verbotener Header-Name</a></th>\n <td>nein</td>\n </tr>\n </tbody>\n</table></figure>"}},{"type":"prose","value":{"id":"syntax","title":"Syntax","isH3":false,"content":"<p>Die Syntax des <code>Server-Timing</code>-Headers ermöglicht es Ihnen, Metriken auf verschiedene Arten zu kommunizieren: nur der Servermetriken-Name, Metriken mit Wert, Metriken mit Wert und Beschreibung sowie Metriken mit Beschreibung.</p>\n<p>Dieser Header kann eine oder mehrere Metriken enthalten, die durch Kommas getrennt sind. Jede Metrik hat einen Namen, eine optionale Dauer und eine optionale Beschreibung. Diese Komponenten werden durch Semikolons getrennt.</p>\n<p>Die Komponente für die Dauer besteht aus dem String <code>\"dur\"</code>, gefolgt von <code>\"=\"</code>, gefolgt vom Wert, wie <code>\"dur=23.2\"</code>. Die Komponente für die Beschreibung besteht aus dem String <code>\"desc\"</code>, gefolgt von <code>\"=\"</code>, gefolgt vom Wert, wie <code>\"desc=DB lookup\"</code>.</p>\n<p>Die Spezifikation empfiehlt, dass Namen und Beschreibungen so kurz wie möglich gehalten werden sollten (verwenden Sie Abkürzungen und lassen Sie optionale Werte nach Möglichkeit weg), um den HTTP-Overhead zu minimieren.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">http</span></div><pre class=\"brush: http notranslate\"><code>// Single metric without value\nServer-Timing: missedCache\n\n// Single metric with value\nServer-Timing: cpu;dur=2.4\n\n// Single metric with description and value\nServer-Timing: cache;desc=\"Cache Read\";dur=23.2\n\n// Two metrics with value\nServer-Timing: db;dur=53, app;dur=47.2\n\n// Server-Timing as trailer\nTrailer: Server-Timing\n--- response body ---\nServer-Timing: total;dur=123.4\n</code></pre></div>"}},{"type":"prose","value":{"id":"datenschutz_und_sicherheit","title":"Datenschutz und Sicherheit","isH3":false,"content":"<p>Der <code>Server-Timing</code>-Header kann potenziell sensible Anwendungs- und Infrastrukturdaten preisgeben. Überlegen Sie, welche Metriken wann und an wen auf Serverseite zurückgegeben werden. Zum Beispiel könnten Sie Metriken nur authentifizierten Benutzern anzeigen und der Öffentlichkeit nichts zeigen.</p>"}},{"type":"prose","value":{"id":"performanceservertiming-schnittstelle","title":"PerformanceServerTiming-Schnittstelle","isH3":false,"content":"<p>Zusätzlich zur Darstellung von <code>Server-Timing</code>-Header-Metriken in den Entwicklerwerkzeugen des Browsers ermöglicht die <a href=\"/de/docs/Web/API/PerformanceServerTiming\"><code>PerformanceServerTiming</code></a>-Schnittstelle Werkzeugen, Metriken automatisch aus JavaScript zu sammeln und zu verarbeiten. Diese Schnittstelle ist auf denselben Ursprung beschränkt, Sie können jedoch den <a href=\"/de/docs/Web/HTTP/Headers/Timing-Allow-Origin\"><code>Timing-Allow-Origin</code></a>-Header verwenden, um die Domänen anzugeben, die auf die Servermetriken zugreifen dürfen. Die Schnittstelle ist nur in sicheren Kontexten (HTTPS) in einigen Browsern verfügbar.</p>\n<p>Die Komponenten des <code>Server-Timing</code>-Headers entsprechen den <a href=\"/de/docs/Web/API/PerformanceServerTiming\"><code>PerformanceServerTiming</code></a>-Eigenschaften wie folgt:</p>\n<ul>\n <li><code>\"name\"</code> -> <a href=\"/de/docs/Web/API/PerformanceServerTiming/name\"><code>PerformanceServerTiming.name</code></a></li>\n <li><code>\"dur\"</code> -> <a href=\"/de/docs/Web/API/PerformanceServerTiming/duration\"><code>PerformanceServerTiming.duration</code></a></li>\n <li><code>\"desc\"</code> -> <a href=\"/de/docs/Web/API/PerformanceServerTiming/description\"><code>PerformanceServerTiming.description</code></a></li>\n</ul>"}},{"type":"specifications","value":{"title":"Spezifikationen","id":"spezifikationen","isH3":false,"specifications":[{"bcdSpecificationURL":"https://w3c.github.io/server-timing/#the-server-timing-header-field","title":"Server Timing"}],"query":"http.headers.Server-Timing"}},{"type":"browser_compatibility","value":{"title":"Browser-Kompatibilität","id":"browser-kompatibilität","isH3":false,"query":"http.headers.Server-Timing"}},{"type":"prose","value":{"id":"siehe_auch","title":"Siehe auch","isH3":false,"content":"<ul>\n <li><a href=\"/de/docs/Web/API/PerformanceServerTiming\"><code>PerformanceServerTiming</code></a></li>\n</ul>"}}],"toc":[{"text":"Syntax","id":"syntax"},{"text":"Datenschutz und Sicherheit","id":"datenschutz_und_sicherheit"},{"text":"PerformanceServerTiming-Schnittstelle","id":"performanceservertiming-schnittstelle"},{"text":"Spezifikationen","id":"spezifikationen"},{"text":"Browser-Kompatibilität","id":"browser-kompatibilität"},{"text":"Siehe auch","id":"siehe_auch"}],"summary":"Der Server-Timing-Header kommuniziert eine oder mehrere Metriken und Beschreibungen für einen gegebenen Anfrage-Antwort-Zyklus. Er wird verwendet, um Backend-Server-Timing-Metriken (z. B. Datenbank-Lesen/Schreiben, CPU-Zeit, Dateisystemzugriff usw.) in den Entwicklerwerkzeugen im Browser des Benutzers oder in der PerformanceServerTiming-Schnittstelle anzuzeigen.","popularity":0,"modified":null,"other_translations":[{"locale":"en-US","title":"Server-Timing","native":"English (US)"},{"locale":"ja","title":"Server-Timing","native":"日本語"},{"locale":"ko","title":"Server-Timing","native":"한국어"},{"locale":"pt-BR","title":"Server-Timing","native":"Português (do Brasil)"},{"locale":"zh-CN","title":"Server-Timing","native":"中文 (简体)"}],"pageType":"unknown","source":{"folder":"de/web/http/headers/server-timing","github_url":"https://github.com/mdn/translated-content/blob/main/files/de/web/http/headers/server-timing/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/null","filename":"index.md"},"short_title":"Server-Timing","parents":[{"uri":"/de/docs/Web","title":"Web-Technologien für Entwickler"},{"uri":"/de/docs/Web/HTTP","title":"HTTP"},{"uri":"/de/docs/Web/HTTP/Headers","title":"Headers"},{"uri":"/de/docs/Web/HTTP/Headers/Server-Timing","title":"Server-Timing"}],"pageTitle":"Server-Timing - HTTP | MDN","noIndexing":false}}</script></body></html>