CINXE.COM

<!doctype html><html lang="en-US" prefix="og: https://ogp.me/ns#"><head><meta charSet="utf-8"/><meta name="viewport" content="width=device-width,initial-scale=1"/><link rel="icon" href="https://developer.mozilla.org/favicon-48x48.bc390275e955dacb2e65.png"/><link rel="apple-touch-icon" href="https://developer.mozilla.org/apple-touch-icon.528534bba673c38049c2.png"/><meta name="theme-color" content="#ffffff"/><link rel="manifest" href="https://developer.mozilla.org/manifest.f42880861b394dd4dc9b.json"/><link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="MDN Web Docs"/><title>Kompression im HTTP - HTTP | MDN</title><link rel="alternate" title="Compression in HTTP" href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Compression" hrefLang="en"/><link rel="alternate" title="Compression dans HTTP" href="https://developer.mozilla.org/fr/docs/Web/HTTP/Compression" hrefLang="fr"/><link rel="alternate" title="HTTP の圧縮" href="https://developer.mozilla.org/ja/docs/Web/HTTP/Compression" hrefLang="ja"/><link rel="alternate" title="HTTP에서의 압축" href="https://developer.mozilla.org/ko/docs/Web/HTTP/Compression" hrefLang="ko"/><link rel="alternate" title="Compressão em HTTP" href="https://developer.mozilla.org/pt-BR/docs/Web/HTTP/Compression" hrefLang="pt"/><link rel="alternate" title="HTTP 协议中的数据压缩" href="https://developer.mozilla.org/zh-CN/docs/Web/HTTP/Compression" hrefLang="zh"/><link rel="alternate" title="Kompression im HTTP" href="https://developer.mozilla.org/de/docs/Web/HTTP/Compression" hrefLang="de"/><link rel="preload" as="font" type="font/woff2" href="/static/media/Inter.var.c2fe3cb2b7c746f7966a.woff2" crossorigin=""/><link rel="alternate" type="application/rss+xml" title="MDN Blog RSS Feed" href="https://developer.mozilla.org/en-US/blog/rss.xml" hrefLang="en"/><meta name="description" content="Kompression ist ein wichtiger Weg, um die Leistung einer Website zu steigern. Bei einigen Dokumenten kann eine Reduzierung der Größe um bis zu 70% den Bedarf an Bandbreitenkapazität verringern. Im Laufe der Jahre wurden Algorithmen effizienter, und neue werden von Clients und Servern unterstützt."/><meta property="og:url" content="https://developer.mozilla.org/de/docs/Web/HTTP/Compression"/><meta property="og:title" content="Kompression im HTTP - HTTP | MDN"/><meta property="og:type" content="website"/><meta property="og:locale" content="de"/><meta property="og:description" content="Kompression ist ein wichtiger Weg, um die Leistung einer Website zu steigern. Bei einigen Dokumenten kann eine Reduzierung der Größe um bis zu 70% den Bedarf an Bandbreitenkapazität verringern. Im Laufe der Jahre wurden Algorithmen effizienter, und neue werden von Clients und Servern unterstützt."/><meta property="og:image" content="https://developer.mozilla.org/mdn-social-share.d893525a4fb5fb1f67a2.png"/><meta property="og:image:type" content="image/png"/><meta property="og:image:height" content="1080"/><meta property="og:image:width" content="1920"/><meta property="og:image:alt" content="The MDN Web Docs logo, featuring a blue accent color, displayed on a solid black background."/><meta property="og:site_name" content="MDN Web Docs"/><meta name="twitter:card" content="summary_large_image"/><meta name="twitter:creator" content="MozDevNet"/><link rel="canonical" href="https://developer.mozilla.org/de/docs/Web/HTTP/Compression"/><style media="print">.article-actions-container,.document-toc-container,.language-menu,.main-menu-toggle,.on-github,.page-footer,.place,.sidebar,.top-banner,.top-navigation-main,ul.prev-next{display:none!important}.main-page-content,.main-page-content pre{padding:2px}.main-page-content pre{border-left-width:2px}</style><script src="/static/js/gtag.js" defer=""></script><script defer="" src="/static/js/main.f565372a.js"></script><link href="/static/css/main.3d9e7a02.css" rel="stylesheet"/></head><body><script>if(document.body.addEventListener("load",(t=>{t.target.classList.contains("interactive")&&t.target.setAttribute("data-readystate","complete")}),{capture:!0}),window&&document.documentElement){const t={light:"#ffffff",dark:"#1b1b1b"};try{const e=window.localStorage.getItem("theme");e&&(document.documentElement.className=e,document.documentElement.style.backgroundColor=t[e]);const o=window.localStorage.getItem("nop");o&&(document.documentElement.dataset.nop=o)}catch(t){console.warn("Unable to read theme from localStorage",t)}}</script><div id="root"><ul id="nav-access" class="a11y-nav"><li><a id="skip-main" href="#content">Skip to main content</a></li><li><a id="skip-search" href="#top-nav-search-input">Skip to search</a></li><li><a id="skip-select-language" href="#languages-switcher-button">Skip to select language</a></li></ul><div class="page-wrapper category-http document-page"><div class="top-banner loading"><section class="place top container"></section></div><div class="sticky-header-container"><header class="top-navigation "><div class="container "><div class="top-navigation-wrap"><a href="/de/" class="logo" aria-label="MDN homepage"><svg id="mdn-docs-logo" xmlns="http://www.w3.org/2000/svg" x="0" y="0" viewBox="0 0 694.9 104.4" style="enable-background:new 0 0 694.9 104.4" xml:space="preserve" role="img"><title>MDN Web Docs</title><path d="M40.3 0 11.7 92.1H0L28.5 0h11.8zm10.4 0v92.1H40.3V0h10.4zM91 0 62.5 92.1H50.8L79.3 0H91zm10.4 0v92.1H91V0h10.4z" class="logo-m"></path><path d="M627.9 95.6h67v8.8h-67v-8.8z" class="logo-_"></path><path d="M367 42h-4l-10.7 30.8h-5.5l-10.8-26h-.4l-10.5 26h-5.2L308.7 42h-3.8v-5.6H323V42h-6.5l6.8 20.4h.4l10.3-26h4.7l11.2 26h.5l5.7-20.3h-6.2v-5.6H367V42zm34.9 20c-.4 3.2-2 5.9-4.7 8.2-2.8 2.3-6.5 3.4-11.3 3.4-5.4 0-9.7-1.6-13.1-4.7-3.3-3.2-5-7.7-5-13.7 0-5.7 1.6-10.3 4.7-14s7.4-5.5 12.9-5.5c5.1 0 9.1 1.6 11.9 4.7s4.3 6.9 4.3 11.3c0 1.5-.2 3-.5 4.7h-25.6c.3 7.7 4 11.6 10.9 11.6 2.9 0 5.1-.7 6.5-2 1.5-1.4 2.5-3 3-4.9l6 .9zM394 51.3c.2-2.4-.4-4.7-1.8-6.9s-3.8-3.3-7-3.3c-3.1 0-5.3 1-6.9 3-1.5 2-2.5 4.4-2.8 7.2H394zm51 2.4c0 5-1.3 9.5-4 13.7s-6.9 6.2-12.7 6.2c-6 0-10.3-2.2-12.7-6.7-.1.4-.2 1.4-.4 2.9s-.3 2.5-.4 2.9h-7.3c.3-1.7.6-3.5.8-5.3.3-1.8.4-3.7.4-5.5V22.3h-6v-5.6H416v27c1.1-2.2 2.7-4.1 4.7-5.7 2-1.6 4.8-2.4 8.4-2.4 4.6 0 8.4 1.6 11.4 4.7 3 3.2 4.5 7.6 4.5 13.4zm-7.7.6c0-4.2-1-7.4-3-9.5-2-2.2-4.4-3.3-7.4-3.3-3.4 0-6 1.2-8 3.7-1.9 2.4-2.9 5-3 7.7V57c0 3 1 5.6 3 7.7s4.5 3.1 7.6 3.1c3.6 0 6.3-1.3 8.1-3.9 1.8-2.7 2.7-5.9 2.7-9.6zm69.2 18.5h-13.2v-7.2c-1.2 2.2-2.8 4.1-4.9 5.6-2.1 1.6-4.8 2.4-8.3 2.4-4.8 0-8.7-1.6-11.6-4.9-2.9-3.2-4.3-7.7-4.3-13.3 0-5 1.3-9.6 4-13.7 2.6-4.1 6.9-6.2 12.8-6.2 5.7 0 9.8 2.2 12.3 6.5V22.3h-8.6v-5.6h15.8v50.6h6v5.5zM493.2 56v-4.4c-.1-3-1.2-5.5-3.2-7.3s-4.4-2.8-7.2-2.8c-3.6 0-6.3 1.3-8.2 3.9-1.9 2.6-2.8 5.8-2.8 9.6 0 4.1 1 7.3 3 9.5s4.5 3.3 7.4 3.3c3.2 0 5.8-1.3 7.8-3.8 2.1-2.6 3.1-5.3 3.2-8zm53.1-1.4c0 5.6-1.8 10.2-5.3 13.7s-8.2 5.3-13.9 5.3-10.1-1.7-13.4-5.1c-3.3-3.4-5-7.9-5-13.5 0-5.3 1.6-9.9 4.7-13.7 3.2-3.8 7.9-5.7 14.2-5.7s11 1.9 14.1 5.7c3 3.7 4.6 8.1 4.6 13.3zm-7.7-.2c0-4-1-7.2-3-9.5s-4.8-3.5-8.2-3.5c-3.6 0-6.4 1.2-8.3 3.7s-2.9 5.6-2.9 9.5c0 3.7.9 6.8 2.8 9.4 1.9 2.6 4.6 3.9 8.3 3.9 3.6 0 6.4-1.3 8.4-3.8 1.9-2.6 2.9-5.8 2.9-9.7zm45 5.8c-.4 3.2-1.9 6.3-4.4 9.1-2.5 2.9-6.4 4.3-11.8 4.3-5.2 0-9.4-1.6-12.6-4.8-3.2-3.2-4.8-7.7-4.8-13.7 0-5.5 1.6-10.1 4.7-13.9 3.2-3.8 7.6-5.7 13.2-5.7 2.3 0 4.6.3 6.7.8 2.2.5 4.2 1.5 6.2 2.9l1.5 9.5-5.9.7-1.3-6.1c-2.1-1.2-4.5-1.8-7.2-1.8-3.5 0-6.1 1.2-7.7 3.7-1.7 2.5-2.5 5.7-2.5 9.6 0 4.1.9 7.3 2.7 9.5 1.8 2.3 4.4 3.4 7.8 3.4 5.2 0 8.2-2.9 9.2-8.8l6.2 1.3zm34.7 1.9c0 3.6-1.5 6.5-4.6 8.5s-7 3-11.7 3c-5.7 0-10.6-1.2-14.6-3.6l1.2-8.8 5.7.6-.2 4.7c1.1.5 2.3.9 3.6 1.1s2.6.3 3.9.3c2.4 0 4.5-.4 6.5-1.3 1.9-.9 2.9-2.2 2.9-4.1 0-1.8-.8-3.1-2.3-3.8s-3.5-1.3-5.8-1.7-4.6-.9-6.9-1.4c-2.3-.6-4.2-1.6-5.7-2.9-1.6-1.4-2.3-3.5-2.3-6.3 0-4.1 1.5-6.9 4.6-8.5s6.4-2.4 9.9-2.4c2.6 0 5 .3 7.2.9 2.2.6 4.3 1.4 6.1 2.4l.8 8.8-5.8.7-.8-5.7c-2.3-1-4.7-1.6-7.2-1.6-2.1 0-3.7.4-5.1 1.1-1.3.8-2 2-2 3.8 0 1.7.8 2.9 2.3 3.6 1.5.7 3.4 1.2 5.7 1.6 2.2.4 4.5.8 6.7 1.4 2.2.6 4.1 1.6 5.7 3 1.4 1.6 2.2 3.7 2.2 6.6zM197.6 73.2h-17.1v-5.5h3.8V51.9c0-3.7-.7-6.3-2.1-7.9-1.4-1.6-3.3-2.3-5.7-2.3-3.2 0-5.6 1.1-7.2 3.4s-2.4 4.6-2.5 6.9v15.6h6v5.5h-17.1v-5.5h3.8V51.9c0-3.8-.7-6.4-2.1-7.9-1.4-1.5-3.3-2.3-5.6-2.3-3.2 0-5.5 1.1-7.2 3.3-1.6 2.2-2.4 4.5-2.5 6.9v15.8h6.9v5.5h-20.2v-5.5h6V42.4h-6.1v-5.6h13.4v6.4c1.2-2.1 2.7-3.8 4.7-5.2 2-1.3 4.4-2 7.3-2s5.3.7 7.5 2.1c2.2 1.4 3.7 3.5 4.5 6.4 1.1-2.5 2.7-4.5 4.9-6.1s4.8-2.4 7.9-2.4c3.5 0 6.5 1.1 8.9 3.3s3.7 5.6 3.7 10.2v18.2h6.1v5.5zm42.5 0h-13.2V66c-1.2 2.2-2.8 4.1-4.9 5.6-2.1 1.6-4.8 2.4-8.3 2.4-4.8 0-8.7-1.6-11.6-4.9-2.9-3.2-4.3-7.7-4.3-13.3 0-5 1.3-9.6 4-13.7 2.6-4.1 6.9-6.2 12.8-6.2s9.8 2.2 12.3 6.5V22.7h-8.6v-5.6h15.8v50.6h6v5.5zm-13.3-16.8V52c-.1-3-1.2-5.5-3.2-7.3s-4.4-2.8-7.2-2.8c-3.6 0-6.3 1.3-8.2 3.9-1.9 2.6-2.8 5.8-2.8 9.6 0 4.1 1 7.3 3 9.5s4.5 3.3 7.4 3.3c3.2 0 5.8-1.3 7.8-3.8 2.1-2.6 3.1-5.3 3.2-8zm61.5 16.8H269v-5.5h6V51.9c0-3.7-.7-6.3-2.2-7.9-1.4-1.6-3.4-2.3-5.7-2.3-3.1 0-5.6 1-7.4 3s-2.8 4.4-2.9 7v15.9h6v5.5h-19.3v-5.5h6V42.4h-6.2v-5.6h13.6V43c2.6-4.6 6.8-6.9 12.7-6.9 3.6 0 6.7 1.1 9.2 3.3s3.7 5.6 3.7 10.2v18.2h6v5.4h-.2z" class="logo-text"></path></svg></a><button title="Open main menu" type="button" class="button action has-icon main-menu-toggle" aria-haspopup="menu" aria-label="Open main menu" aria-expanded="false"><span class="button-wrap"><span class="icon icon-menu "></span><span class="visually-hidden">Open main menu</span></span></button></div><div class="top-navigation-main"><nav class="main-nav" aria-label="Main menu"><ul class="main-menu nojs"><li class="top-level-entry-container active"><button type="button" id="references-button" class="top-level-entry menu-toggle" aria-controls="references-menu" aria-expanded="false">References</button><a href="/de/docs/Web" class="top-level-entry">References</a><ul id="references-menu" class="submenu references hidden inline-submenu-lg" aria-labelledby="references-button"><li class="apis-link-container mobile-only "><a href="/de/docs/Web" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview / Web Technology</div><p class="submenu-item-description">Web technology reference for developers</p></div></a></li><li class="html-link-container "><a href="/de/docs/Web/HTML" class="submenu-item "><div class="submenu-icon html"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTML</div><p class="submenu-item-description">Structure of content on the web</p></div></a></li><li class="css-link-container "><a href="/de/docs/Web/CSS" class="submenu-item "><div class="submenu-icon css"></div><div class="submenu-content-container"><div class="submenu-item-heading">CSS</div><p class="submenu-item-description">Code used to describe document style</p></div></a></li><li class="javascript-link-container "><a href="/de/docs/Web/JavaScript" class="submenu-item "><div class="submenu-icon javascript"></div><div class="submenu-content-container"><div class="submenu-item-heading">JavaScript</div><p class="submenu-item-description">General-purpose scripting language</p></div></a></li><li class="http-link-container "><a href="/de/docs/Web/HTTP" class="submenu-item "><div class="submenu-icon http"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTTP</div><p class="submenu-item-description">Protocol for transmitting web resources</p></div></a></li><li class="apis-link-container "><a href="/de/docs/Web/API" class="submenu-item "><div class="submenu-icon apis"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web APIs</div><p class="submenu-item-description">Interfaces for building web applications</p></div></a></li><li class="apis-link-container "><a href="/de/docs/Mozilla/Add-ons/WebExtensions" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web Extensions</div><p class="submenu-item-description">Developing extensions for web browsers</p></div></a></li><li class=" "><a href="/de/docs/Web/Accessibility" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Accessibility</div><p class="submenu-item-description">Build web projects usable for all</p></div></a></li><li class="apis-link-container desktop-only "><a href="/de/docs/Web" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Web Technology</div><p class="submenu-item-description">Web technology reference for developers</p></div></a></li></ul></li><li class="top-level-entry-container "><button type="button" id="learn-button" class="top-level-entry menu-toggle" aria-controls="learn-menu" aria-expanded="false">Learn</button><a href="/de/docs/Learn_web_development" class="top-level-entry">Learn</a><ul id="learn-menu" class="submenu learn hidden inline-submenu-lg" aria-labelledby="learn-button"><li class="apis-link-container mobile-only "><a href="/de/docs/Learn_web_development" class="submenu-item "><div class="submenu-icon learn"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview / MDN Learning Area</div><p class="submenu-item-description">Learn web development</p></div></a></li><li class="apis-link-container desktop-only "><a href="/de/docs/Learn_web_development" class="submenu-item "><div class="submenu-icon learn"></div><div class="submenu-content-container"><div class="submenu-item-heading">MDN Learning Area</div><p class="submenu-item-description">Learn web development</p></div></a></li><li class="html-link-container "><a href="/de/docs/Learn_web_development/Core/Structuring_content" class="submenu-item "><div class="submenu-icon html"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTML</div><p class="submenu-item-description">Learn to structure web content with HTML</p></div></a></li><li class="css-link-container "><a href="/de/docs/Learn_web_development/Core/Styling_basics" class="submenu-item "><div class="submenu-icon css"></div><div class="submenu-content-container"><div class="submenu-item-heading">CSS</div><p class="submenu-item-description">Learn to style content using CSS</p></div></a></li><li class="javascript-link-container "><a href="/de/docs/Learn_web_development/Core/Scripting" class="submenu-item "><div class="submenu-icon javascript"></div><div class="submenu-content-container"><div class="submenu-item-heading">JavaScript</div><p class="submenu-item-description">Learn to run scripts in the browser</p></div></a></li><li class=" "><a href="/de/docs/Learn_web_development/Core/Accessibility" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Accessibility</div><p class="submenu-item-description">Learn to make the web accessible to all</p></div></a></li></ul></li><li class="top-level-entry-container "><button type="button" id="mdn-plus-button" class="top-level-entry menu-toggle" aria-controls="mdn-plus-menu" aria-expanded="false">Plus</button><a href="/de/plus" class="top-level-entry">Plus</a><ul id="mdn-plus-menu" class="submenu mdn-plus hidden inline-submenu-lg" aria-labelledby="mdn-plus-button"><li class=" "><a href="/de/plus" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Overview</div><p class="submenu-item-description">A customized MDN experience</p></div></a></li><li class=" "><a href="/de/plus/ai-help" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">AI Help</div><p class="submenu-item-description">Get real-time assistance and support</p></div></a></li><li class=" "><a href="/de/plus/updates" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Updates</div><p class="submenu-item-description">All browser compatibility updates at a glance</p></div></a></li><li class=" "><a href="/en-US/plus/docs/features/overview" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Documentation</div><p class="submenu-item-description">Learn how to use MDN Plus</p></div></a></li><li class=" "><a href="/en-US/plus/docs/faq" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">FAQ</div><p class="submenu-item-description">Frequently asked questions about MDN Plus</p></div></a></li></ul></li><li class="top-level-entry-container "><a class="top-level-entry menu-link" href="/en-US/curriculum/">Curriculum <sup class="new">New</sup></a></li><li class="top-level-entry-container "><a class="top-level-entry menu-link" href="/en-US/blog/">Blog</a></li><li class="top-level-entry-container "><button type="button" id="tools-button" class="top-level-entry menu-toggle" aria-controls="tools-menu" aria-expanded="false">Tools</button><ul id="tools-menu" class="submenu tools hidden inline-submenu-lg" aria-labelledby="tools-button"><li class=" "><a href="/de/play" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">Playground</div><p class="submenu-item-description">Write, test and share your code</p></div></a></li><li class=" "><a href="/en-US/observatory" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">HTTP Observatory</div><p class="submenu-item-description">Scan a website for free</p></div></a></li><li class=" "><a href="/en-US/plus/ai-help" class="submenu-item "><div class="submenu-icon"></div><div class="submenu-content-container"><div class="submenu-item-heading">AI Help</div><p class="submenu-item-description">Get real-time assistance and support</p></div></a></li></ul></li></ul></nav><div class="header-search"><form action="/de/search" class="search-form search-widget" id="top-nav-search-form" role="search"><label id="top-nav-search-label" for="top-nav-search-input" class="visually-hidden">Search MDN</label><input aria-activedescendant="" aria-autocomplete="list" aria-controls="top-nav-search-menu" aria-expanded="false" aria-labelledby="top-nav-search-label" autoComplete="off" id="top-nav-search-input" role="combobox" type="search" class="search-input-field" name="q" placeholder=" " required="" value=""/><button type="button" class="button action has-icon clear-search-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear search input</span></span></button><button type="submit" class="button action has-icon search-button"><span class="button-wrap"><span class="icon icon-search "></span><span class="visually-hidden">Search</span></span></button><div id="top-nav-search-menu" role="listbox" aria-labelledby="top-nav-search-label"></div></form></div><div class="theme-switcher-menu"><button type="button" class="button action has-icon theme-switcher-menu small" aria-haspopup="menu"><span class="button-wrap"><span class="icon icon-theme-os-default "></span>Theme</span></button></div><ul class="auth-container"><li><a href="/users/fxa/login/authenticate/?next=%2Fde%2Fdocs%2FWeb%2FHTTP%2FCompression" class="login-link" rel="nofollow">Log in</a></li><li><a href="/users/fxa/login/authenticate/?next=%2Fde%2Fdocs%2FWeb%2FHTTP%2FCompression" target="_self" rel="nofollow" class="button primary mdn-plus-subscribe-link"><span class="button-wrap">Sign up for free</span></a></li></ul></div></div></header><div class="article-actions-container"><div class="container"><button type="button" class="button action has-icon sidebar-button" aria-label="Expand sidebar" aria-expanded="false" aria-controls="sidebar-quicklinks"><span class="button-wrap"><span class="icon icon-sidebar "></span></span></button><nav class="breadcrumbs-container" aria-label="Breadcrumb"><ol typeof="BreadcrumbList" vocab="https://schema.org/" aria-label="breadcrumbs"><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web" class="breadcrumb" property="item" typeof="WebPage"><span property="name">Webtechnologie für Entwickler</span></a><meta property="position" content="1"/></li><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web/HTTP" class="breadcrumb" property="item" typeof="WebPage"><span property="name">HTTP</span></a><meta property="position" content="2"/></li><li property="itemListElement" typeof="ListItem"><a href="/de/docs/Web/HTTP/Compression" class="breadcrumb-current-page" property="item" typeof="WebPage"><span property="name">Kompression im HTTP</span></a><meta property="position" content="3"/></li></ol></nav><div class="article-actions"><button type="button" class="button action has-icon article-actions-toggle" aria-label="Article actions"><span class="button-wrap"><span class="icon icon-ellipses "></span><span class="article-actions-dialog-heading">Article Actions</span></span></button><ul class="article-actions-entries"><li class="article-actions-entry"><div class="languages-switcher-menu open-on-focus-within"><button id="languages-switcher-button" type="button" 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/Compression" class="button submenu-item"><span>English (US)</span></a></li><li class=" "><a data-locale="fr" href="/fr/docs/Web/HTTP/Compression" class="button submenu-item"><span>Français</span></a></li><li class=" "><a data-locale="ja" href="/ja/docs/Web/HTTP/Compression" class="button submenu-item"><span>日本語</span></a></li><li class=" "><a data-locale="ko" href="/ko/docs/Web/HTTP/Compression" class="button submenu-item"><span>한국어</span></a></li><li class=" "><a data-locale="pt-BR" href="/pt-BR/docs/Web/HTTP/Compression" class="button submenu-item"><span>Português (do Brasil)</span></a></li><li class=" "><a data-locale="zh-CN" href="/zh-CN/docs/Web/HTTP/Compression" 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"><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="#kompression_von_dateiformaten">Kompression von Dateiformaten</a></li><li class="document-toc-item "><a class="document-toc-link" href="#end-to-end-kompression">End-to-End-Kompression</a></li><li class="document-toc-item "><a class="document-toc-link" href="#hop-by-hop-kompression">Hop-by-Hop-Kompression</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">Anleitungen</li><li><a href="/de/docs/Web/HTTP/Overview">Ein Überblick über HTTP</a></li><li><a href="/de/docs/Web/HTTP/Session">Ein typischer HTTP-Session</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-Medientypen)</a></li><li><em><a href="/de/docs/Web/HTTP/Compression" aria-current="page">Kompression im HTTP</a></em></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">Umleitungen im 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">Inhaltsaushandlung</a></li><li><a href="/de/docs/Web/HTTP/Connection_management_in_HTTP_1.x">Verbindungsverwaltung in HTTP/1.x</a></li><li><a href="/de/docs/Web/HTTP/Evolution_of_HTTP">Evolution von HTTP</a></li><li><a href="/de/docs/Web/HTTP/Protocol_upgrade_mechanism">Protokoll-Upgrade-Mechanismus</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 Anleitungen zur Sicherheitsimplementierung</a></li><li><a href="/en-US/observatory" class="only-in-en-us">HTTP Observatory</a></li><li><a href="/de/docs/Web/HTTP/Permissions_Policy">Berechtigungsrichtlinie</a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></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">Headers</a></li></ol></details></li><li class="section">Referenzen</li><li class="toggle"><details><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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 empfohlen für neue Webseiten."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</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><a href="/de/docs/Web/HTTP/Headers/Server-Timing"><code>Server-Timing</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Service-Worker"><code>Service-Worker</code></a></li><li><a href="/de/docs/Web/HTTP/Headers/Service-Worker-Allowed"><code>Service-Worker-Allowed</code></a></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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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 empfohlen für neue Webseiten."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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 vor der Verwendung die Browser-Kompatibilität."> <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 vor der Verwendung die Browser-Kompatibilität."> <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 vor der Verwendung die Browser-Kompatibilität."> <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 vor der Verwendung die Browser-Kompatibilität."> <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></li><li><a href="/de/docs/Web/HTTP/Headers/X-Permitted-Cross-Domain-Policies"><code>X-Permitted-Cross-Domain-Policies</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-Powered-By"><code>X-Powered-By</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/X-Robots-Tag"><code>X-Robots-Tag</code></a><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <span class="visually-hidden">Veraltet</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 empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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 vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr><abbr class="icon icon-deprecated" title="Veraltet. Nicht empfohlen für neue Webseiten."> <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 empfohlen für neue Webseiten."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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. Das Verhalten könnte sich in Zukunft ändern."> <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"><code>Reason: CORS disabled</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSAllowOriginNotMatchingOrigin"><code>Reason: CORS header 'Access-Control-Allow-Origin' does not match 'xyz'</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowOrigin"><code>Reason: CORS header 'Access-Control-Allow-Origin' missing</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSOriginHeaderNotAdded"><code>Reason: CORS header 'Origin' cannot be added</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed"><code>Reason: CORS preflight channel did not succeed</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSDidNotSucceed"><code>Reason: CORS request did not succeed</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed"><code>Reason: CORS request external redirect not allowed</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp"><code>Reason: CORS request not HTTP</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredentials"><code>Reason: Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*'</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMethodNotFound"><code>Reason: Did not find method in CORS header 'Access-Control-Allow-Methods'</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMIssingAllowCredentials"><code>Reason: expected 'true' in CORS header 'Access-Control-Allow-Credentials'</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowHeader"><code>Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Headers'</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowMethod"><code>Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Methods'</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight"><code>Reason: missing token 'xyz' in CORS header 'Access-Control-Allow-Headers' from CORS preflight channel</code></a></li><li><a href="/de/docs/Web/HTTP/CORS/Errors/CORSMultipleAllowOriginNotAllowed"><code>Reason: Multiple CORS header 'Access-Control-Allow-Origin' not allowed</code></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"><code>Permissions-Policy: accelerometer</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor"><code>Permissions-Policy: ambient-light-sensor</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/attribution-reporting"><code>Permissions-Policy: attribution-reporting</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/autoplay"><code>Permissions-Policy: autoplay</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth"><code>Permissions-Policy: bluetooth</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/browsing-topics"><code>Permissions-Policy: browsing-topics</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr><abbr class="icon icon-nonstandard" title="Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität."> <span class="visually-hidden">Nicht standardisiert</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/camera"><code>Permissions-Policy: camera</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/compute-pressure"><code>Permissions-Policy: compute-pressure</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/cross-origin-isolated"><code>Permissions-Policy: cross-origin-isolated</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/display-capture"><code>Permissions-Policy: display-capture</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/document-domain"><code>Permissions-Policy: document-domain</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media"><code>Permissions-Policy: encrypted-media</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen"><code>Permissions-Policy: fullscreen</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/gamepad"><code>Permissions-Policy: gamepad</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/geolocation"><code>Permissions-Policy: geolocation</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope"><code>Permissions-Policy: gyroscope</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/hid"><code>Permissions-Policy: hid</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get"><code>Permissions-Policy: identity-credentials-get</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/idle-detection"><code>Permissions-Policy: idle-detection</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts"><code>Permissions-Policy: local-fonts</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer"><code>Permissions-Policy: magnetometer</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/microphone"><code>Permissions-Policy: microphone</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/midi"><code>Permissions-Policy: midi</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials"><code>Permissions-Policy: otp-credentials</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/payment"><code>Permissions-Policy: payment</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/picture-in-picture"><code>Permissions-Policy: picture-in-picture</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create"><code>Permissions-Policy: publickey-credentials-create</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get"><code>Permissions-Policy: publickey-credentials-get</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/screen-wake-lock"><code>Permissions-Policy: screen-wake-lock</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/serial"><code>Permissions-Policy: serial</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection"><code>Permissions-Policy: speaker-selection</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/storage-access"><code>Permissions-Policy: storage-access</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/usb"><code>Permissions-Policy: usb</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/web-share"><code>Permissions-Policy: web-share</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/window-management"><code>Permissions-Policy: window-management</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <span class="visually-hidden">Experimentell</span> </abbr></li><li><a href="/de/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking"><code>Permissions-Policy: xr-spatial-tracking</code></a><abbr class="icon icon-experimental" title="Experimentell. Das Verhalten könnte sich in Zukunft ändern."> <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="#kompression_von_dateiformaten">Kompression von Dateiformaten</a></li><li class="document-toc-item "><a class="document-toc-link" href="#end-to-end-kompression">End-to-End-Kompression</a></li><li class="document-toc-item "><a class="document-toc-link" href="#hop-by-hop-kompression">Hop-by-Hop-Kompression</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>Kompression im HTTP</h1></header><div class="section-content"><p><strong>Kompression</strong> ist ein wichtiger Weg, um die Leistung einer Website zu steigern. Bei einigen Dokumenten kann eine Reduzierung der Größe um bis zu 70% den Bedarf an Bandbreitenkapazität verringern. Im Laufe der Jahre wurden Algorithmen effizienter, und neue werden von Clients und Servern unterstützt.</p> <p>In der Praxis müssen Webentwickler keine Kompressionsmechanismen implementieren, da sowohl Browser als auch Server diese bereits integriert haben, aber sie müssen sicherstellen, dass der Server entsprechend konfiguriert ist. Die Kompression erfolgt auf drei verschiedenen Ebenen:</p> <ul> <li>Zuerst werden einige Dateiformate mit spezifisch optimierten Methoden komprimiert,</li> <li>dann kann auf HTTP-Ebene eine allgemeine Kompression erfolgen (die Ressource wird von Ende zu Ende komprimiert übertragen),</li> <li>und schließlich kann die Kompression auf Verbindungsebene zwischen zwei Knoten einer HTTP-Verbindung definiert werden.</li> </ul></div><section aria-labelledby="kompression_von_dateiformaten"><h2 id="kompression_von_dateiformaten"><a href="#kompression_von_dateiformaten">Kompression von Dateiformaten</a></h2><div class="section-content"><p>Jeder Datentyp hat eine gewisse Redundanz, das sind <em>verschwendete Räume</em>, in sich. Wenn Text typischerweise bis zu 60% Redundanz aufweisen kann, kann diese Rate bei anderen Medien wie Audio und Video viel höher sein. Im Gegensatz zu Text benötigen diese anderen Medientypen viel Speicherplatz, um ihre Daten zu speichern, und die Notwendigkeit, den Speicher zu optimieren und Platz zurückzugewinnen, wurde sehr früh deutlich. Ingenieure entwickelten den optimierten Kompressionsalgorithmus, der von Dateiformaten verwendet wird, die für diesen speziellen Zweck entworfen wurden. Kompressionsalgorithmen für Dateien können in zwei Hauptkategorien unterteilt werden:</p> <ul> <li><em>Verlustfreie Kompression</em>, bei der der Kompressions-Dekompressionszyklus die wiederhergestellten Daten nicht verändert. Diese stimmen (Byte für Byte) mit dem Original überein. Für Bilder verwenden <code>gif</code> oder <code>png</code> verlustfreie Kompression.</li> <li><em>Verlustbehaftete Kompression</em>, bei der der Zyklus die Originaldaten in einer (hoffentlich) für den Benutzer unmerklichen Weise verändert. Videoformate im Web sind verlustbehaftet; das <code>jpeg</code>-Bildformat ist ebenfalls verlustbehaftet.</li> </ul> <p>Einige Formate können sowohl für verlustfreie als auch für verlustbehaftete Kompression verwendet werden, wie <code>webp</code>, und in der Regel kann der verlustbehaftete Algorithmus so konfiguriert werden, dass er mehr oder weniger komprimiert, was dann natürlich zu weniger oder mehr Qualität führt. Für eine bessere Leistung einer Website ist es ideal, so viel wie möglich zu komprimieren, während ein akzeptables Qualitätsniveau beibehalten wird. Bei Bildern kann ein von einem Werkzeug generiertes Bild nicht ausreichend für das Web optimiert sein; es wird empfohlen, Werkzeuge zu verwenden, die so viel wie möglich mit der erforderlichen Qualität komprimieren. Es gibt <a href="https://www.creativebloq.com/design/image-compression-tools-1132865" class="external" target="_blank">zahlreiche Werkzeuge</a>, die darauf spezialisiert sind.</p> <p>Verlustbehaftete Kompressionsalgorithmen sind in der Regel effizienter als verlustfreie.</p> <div class="notecard note"> <p><strong>Hinweis:</strong> Da Kompression besser bei einer bestimmten Art von Dateien funktioniert, bringt es normalerweise nichts, sie ein zweites Mal zu komprimieren. Tatsächlich ist dies oft kontraproduktiv, da die Kosten des Overheads (Algorithmen benötigen in der Regel ein Wörterbuch, das die Anfangsgröße erhöht) höher sein können als der zusätzliche Gewinn durch die Kompression, was zu einer größeren Datei führt. Verwenden Sie die folgenden Techniken nicht für Dateien in einem komprimierten Format.</p> </div></div></section><section aria-labelledby="end-to-end-kompression"><h2 id="end-to-end-kompression"><a href="#end-to-end-kompression">End-to-End-Kompression</a></h2><div class="section-content"><p>Bei der Kompression liegen die größten Leistungsverbesserungen von Websites bei der End-to-End-Kompression. End-to-End-Kompression bezieht sich auf eine Kompression des Körpers einer Nachricht, die vom Server durchgeführt wird und unverändert bis zum Client bleibt. Unabhängig von den Zwischenknoten bleibt der Körper unangetastet.</p> <p><img src="/de/docs/Web/HTTP/Compression/httpenco1.svg" alt="Ein Server sendet einen komprimierten HTTP-Körper über Netzknoten an einen Client. Der Körper wird auf keinem Netzwerk-Hop dekomprimiert, bis er den Client erreicht." width="950" height="463" loading="lazy"></p> <p>Alle modernen Browser und Server unterstützen End-to-End-Kompression und das Einzige, was ausgehandelt werden muss, ist der zu verwendende Kompressionsalgorithmus. Diese Algorithmen sind für Text optimiert. In den 1990er Jahren entwickelte sich die Kompressionstechnologie rasant weiter und zahlreiche aufeinanderfolgende Algorithmen wurden zu den möglichen Auswahlmöglichkeiten hinzugefügt. Heutzutage sind nur zwei relevant: <code>gzip</code>, der am häufigsten verwendete, und <code>br</code>, der neue Herausforderer.</p> <p>Zur Auswahl des zu verwendenden Algorithmus verwenden Browser und Server <a href="/de/docs/Web/HTTP/Content_negotiation">proaktives Inhaltsaushandeln</a>. Der Browser sendet einen <a href="/de/docs/Web/HTTP/Headers/Accept-Encoding"><code>Accept-Encoding</code></a>-Header mit den unterstützten Algorithmen und deren Rangfolge, der Server wählt einen aus, verwendet ihn, um den Körper der Antwort zu komprimieren, und verwendet den <a href="/de/docs/Web/HTTP/Headers/Content-Encoding"><code>Content-Encoding</code></a>-Header, um dem Browser mitzuteilen, welchen Algorithmus er gewählt hat. Da das Inhaltsaushandeln verwendet wurde, um eine Darstellung basierend auf ihrer Kodierung auszuwählen, muss der Server einen <a href="/de/docs/Web/HTTP/Headers/Vary"><code>Vary</code></a>-Header senden, der mindestens <a href="/de/docs/Web/HTTP/Headers/Accept-Encoding"><code>Accept-Encoding</code></a> enthält, und diesen Header in die Antwort aufnehmen; so können Caches die verschiedenen Darstellungen der Ressource cachen.</p> <p><img src="/de/docs/Web/HTTP/Compression/httpcompression1.svg" alt="Ein Client fordert Inhalt mit einem 'Accept-Encoding: br, gzip'-Header an. Der Server antwortet mit einem Körper, der mit dem Brotli-Algorithmus komprimiert ist, sowie den erforderlichen 'Content-Encoding'- und 'Vary'-Headern." width="850" height="479" loading="lazy"></p> <p>Da die Kompression erhebliche Leistungsverbesserungen bringt, wird empfohlen, sie für alle Dateien außer bereits komprimierten wie Bilder, Audiodateien und Videos zu aktivieren.</p> <p>Apache unterstützt Kompression und verwendet <a href="https://httpd.apache.org/docs/current/mod/mod_deflate.html" class="external" target="_blank">mod_deflate</a>; für Nginx gibt es das <a href="https://nginx.org/en/docs/http/ngx_http_gzip_module.html" class="external" target="_blank">ngx_http_gzip_module</a>; für IIS das <a href="https://learn.microsoft.com/en-us/iis/configuration/system.webServer/httpCompression/" class="external" target="_blank"><code><httpCompression></code></a>-Element.</p></div></section><section aria-labelledby="hop-by-hop-kompression"><h2 id="hop-by-hop-kompression"><a href="#hop-by-hop-kompression">Hop-by-Hop-Kompression</a></h2><div class="section-content"><p>Hop-by-Hop-Kompression ähnelt der End-to-End-Kompression, unterscheidet sich jedoch in einem wesentlichen Element: Die Kompression erfolgt nicht auf der Ressource auf dem Server, um eine spezifische Darstellung zu schaffen, die dann übertragen wird, sondern auf dem Körper der Nachricht zwischen zwei beliebigen Knoten auf dem Weg zwischen Client und Server. Verbindungen zwischen aufeinanderfolgenden Zwischenknoten können eine <em>andere</em> Kompression anwenden.</p> <p><img src="/de/docs/Web/HTTP/Compression/httpte1.svg" alt="Ein Server sendet einen unkomprimierten HTTP-Körper über Netzknoten an einen Client. Der Körper wird von Knoten im Netzwerk komprimiert und dekomprimiert, abhängig von 'Transfer-Encoding'-Headern, bevor er den Client erreicht." width="1132" height="624" loading="lazy"></p> <p>Um dies zu tun, verwendet HTTP einen Mechanismus, ähnlich der Inhaltsaushandeln für End-to-End-Kompression: der Knoten, der die Anfrage übermittelt, gibt seinen Willen mit dem <a href="/de/docs/Web/HTTP/Headers/TE"><code>TE</code></a>-Header an, und der andere Knoten wählt die geeignete Methode, wendet sie an und gibt seine Wahl mit dem <a href="/de/docs/Web/HTTP/Headers/Transfer-Encoding"><code>Transfer-Encoding</code></a>-Header an.</p> <p><img src="/de/docs/Web/HTTP/Compression/httpcomp2.svg" alt="Ein Client fordert Inhalt von einem Server ohne kompressionsbezogene Header an. Der Server antwortet mit einem unkomprimierten Körper. Der Körper wird von Knoten im Netzwerk komprimiert und dekomprimiert, bevor er den Client erreicht." width="951" height="943" loading="lazy"></p> <p>In der Praxis ist die Hop-by-Hop-Kompression sowohl für den Server als auch für den Client transparent und wird selten verwendet. <a href="/de/docs/Web/HTTP/Headers/TE"><code>TE</code></a> und <a href="/de/docs/Web/HTTP/Headers/Transfer-Encoding"><code>Transfer-Encoding</code></a> werden meist verwendet, um eine Antwort in Teilen zu senden, was es ermöglicht, eine Ressource zu übertragen, ohne ihre Länge zu kennen.</p> <p>Beachten Sie, dass die Verwendung von <a href="/de/docs/Web/HTTP/Headers/Transfer-Encoding"><code>Transfer-Encoding</code></a> und Kompression auf Hop-Ebene so selten ist, dass die meisten Server, wie Apache, Nginx oder IIS, keine einfache Möglichkeit haben, sie zu konfigurieren. Eine solche Konfiguration erfolgt in der Regel auf Proxy-Ebene.</p></div></section><section aria-labelledby="siehe_auch"><h2 id="siehe_auch"><a href="#siehe_auch">Siehe auch</a></h2><div class="section-content"><ul> <li>Glossarbegriffe: <ul> <li><a href="/de/docs/Glossary/Brotli_compression">Brotli-Kompression</a></li> <li><a href="/de/docs/Glossary/gzip_compression">Gzip-Kompression</a></li> <li><a href="/de/docs/Glossary/Lossless_compression">Verlustfreie Kompression</a></li> <li><a href="/de/docs/Glossary/Lossy_compression">Verlustbehaftete Kompression</a></li> <li><a href="/de/docs/Glossary/Zstandard_compression">Zstandard-Kompression</a></li> </ul> </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 3.712-22.352c-.561-7.625-2.938-15.025-6.948-21.625s-9.544-12.226-16.175-16.44-14.181-6.904-22.065-7.863a53.75 53.75 0 0 0-23.405 2.336c-7.513 2.495-14.327 6.62-19.918 12.053z"></path></mask><path stroke="url(#a)" stroke-dasharray="6, 6" stroke-width="2" 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 3.712-22.352c-.561-7.625-2.938-15.025-6.948-21.625s-9.544-12.226-16.175-16.44-14.181-6.904-22.065-7.863a53.75 53.75 0 0 0-23.405 2.336c-7.513 2.495-14.327 6.62-19.918 12.053z" mask="url(#b)" style="stroke:url(#a)" transform="translate(-63.992 -25.587)"></path><ellipse cx="8.066" cy="111.597" fill="var(--background-tertiary)" rx="53.677" ry="53.699" transform="matrix(.71707 -.697 .7243 .6895 0 0)"></ellipse><g clip-path="url(#c)" transform="translate(-63.992 -25.587)"><path fill="#9abff5" d="m144.256 137.379 32.906 12.434a4.41 4.41 0 0 1 2.559 5.667l-9.326 24.679a4.41 4.41 0 0 1-5.667 2.559l-8.226-3.108-2.332 6.17c-.466 1.233-.375 1.883-1.609 1.417l-2.253-.527c-.411-.155-.95-.594-1.206-1.161l-4.734-10.484-12.545-4.741a4.41 4.41 0 0 1-2.559-5.667l9.325-24.679a4.41 4.41 0 0 1 5.667-2.559m9.961 29.617 8.227 3.108 3.264-8.638-.498-6.768-4.113-1.555.548 7.258-4.319-1.632zm-12.339-4.663 8.226 3.108 3.264-8.637-.498-6.769-4.113-1.554.548 7.257-4.319-1.632z"></path></g><g clip-path="url(#d)" transform="translate(-63.992 -25.587)"><path fill="#81b0f3" d="M135.35 60.136 86.67 41.654c-3.346-1.27-7.124.428-8.394 3.775L64.414 81.938c-1.27 3.347.428 7.125 3.774 8.395l12.17 4.62-3.465 9.128c-.693 1.826-1.432 2.457.394 3.15l3.014 1.625c.609.231 1.637.274 2.477-.104l15.53-6.983 18.56 7.047c3.346 1.27 7.124-.428 8.395-3.775l13.862-36.51c1.27-3.346-.428-7.124-3.775-8.395M95.261 83.207l-12.17-4.62 4.852-12.779 7.19-7.017 6.085 2.31-7.725 7.51 6.389 2.426zm18.255 6.93-12.17-4.62 4.852-12.778 7.189-7.017 6.085 2.31-7.725 7.51 6.39 2.426z"></path></g><defs><clipPath id="c"><path fill="#fff" d="m198.638 146.586-65.056-24.583-24.583 65.057 65.056 24.582z"></path></clipPath><clipPath id="d"><path fill="#fff" d="m66.438 14.055 96.242 36.54-36.54 96.243-96.243-36.54z"></path></clipPath><linearGradient id="a" x1="97.203" x2="199.995" y1="47.04" y2="152.793" gradientUnits="userSpaceOnUse"><stop stop-color="#086DFC"></stop><stop offset="0.246" stop-color="#2C81FA"></stop><stop offset="0.516" stop-color="#5497F8"></stop><stop offset="0.821" stop-color="#80B0F6"></stop><stop offset="1" stop-color="#9ABFF5"></stop></linearGradient></defs></svg></div><h2>MDN-Feedback-Box</h2><fieldset class="feedback"><label>War diese Übersetzung hilfreich?</label><div class="button-container"><button type="button" class="button primary has-icon yes"><span class="button-wrap"><span class="icon icon-thumbs-up "></span>Ja</span></button><button type="button" class="button primary has-icon no"><span class="button-wrap"><span class="icon icon-thumbs-down "></span>Nein</span></button></div></fieldset><p class="last-modified-date">Diese Seite wurde automatisch aus dem Englischen übersetzt.</p><div id="on-github" class="on-github"><a href="https://github.com/mdn/translated-content-de/blob/main/files/de/web/http/compression/index.md?plain=1" title="Folder: de/web/http/compression (Opens in a new tab)" target="_blank" rel="noopener noreferrer">Übersetzung auf GitHub anzeigen</a> • <a href="https://github.com/mdn/translated-content-de/issues/new?template=page-report-de.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fde%2Fdocs%2FWeb%2FHTTP%2FCompression&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60de%2Fweb%2Fhttp%2Fcompression%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fde%2Fdocs%2FWeb%2FHTTP%2FCompression%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content-de%2Fblob%2Fmain%2Ffiles%2Fde%2Fweb%2Fhttp%2Fcompression%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Ftranslated-content-de%2Fcommit%2F452fe502cfb4c9a91c346af17370ecfb6a8bd17e%0A*+Document+last+modified%3A+2025-02-17T00%3A20%3A27.000Z%0A%0A%3C%2Fdetails%3E" title="This will take you to GitHub to file a new issue." target="_blank" rel="noopener noreferrer">Fehler mit dieser Übersetzung melden</a></div></div></aside></main></div></div><footer id="nav-footer" class="page-footer"><div class="page-footer-grid"><div class="page-footer-logo-col"><a href="/" class="mdn-footer-logo" aria-label="MDN homepage"><svg width="48" height="17" viewBox="0 0 48 17" fill="none" xmlns="http://www.w3.org/2000/svg"><title id="mdn-footer-logo-svg">MDN logo</title><path d="M20.04 16.512H15.504V10.416C15.504 9.488 15.344 8.824 15.024 8.424C14.72 8.024 14.264 7.824 13.656 7.824C12.92 7.824 12.384 8.064 12.048 8.544C11.728 9.024 11.568 9.64 11.568 10.392V14.184H13.008V16.512H8.472V10.416C8.472 9.488 8.312 8.824 7.992 8.424C7.688 8.024 7.232 7.824 6.624 7.824C5.872 7.824 5.336 8.064 5.016 8.544C4.696 9.024 4.536 9.64 4.536 10.392V14.184H6.6V16.512H0V14.184H1.44V8.04H0.024V5.688H4.536V7.32C5.224 6.088 6.32 5.472 7.824 5.472C8.608 5.472 9.328 5.664 9.984 6.048C10.64 6.432 11.096 7.016 11.352 7.8C11.992 6.248 13.168 5.472 14.88 5.472C15.856 5.472 16.72 5.776 17.472 6.384C18.224 6.992 18.6 7.936 18.6 9.216V14.184H20.04V16.512Z" fill="currentColor"></path><path d="M33.6714 16.512H29.1354V14.496C28.8314 15.12 28.3834 15.656 27.7914 16.104C27.1994 16.536 26.4154 16.752 25.4394 16.752C24.0154 16.752 22.8954 16.264 22.0794 15.288C21.2634 14.312 20.8554 12.984 20.8554 11.304C20.8554 9.688 21.2554 8.312 22.0554 7.176C22.8554 6.04 24.0634 5.472 25.6794 5.472C26.5594 5.472 27.2794 5.648 27.8394 6C28.3994 6.352 28.8314 6.8 29.1354 7.344V2.352H26.9754V0H32.2314V14.184H33.6714V16.512ZM29.1354 11.04V10.776C29.1354 9.88 28.8954 9.184 28.4154 8.688C27.9514 8.176 27.3674 7.92 26.6634 7.92C25.9754 7.92 25.3674 8.176 24.8394 8.688C24.3274 9.2 24.0714 10.008 24.0714 11.112C24.0714 12.152 24.3114 12.944 24.7914 13.488C25.2714 14.032 25.8394 14.304 26.4954 14.304C27.3114 14.304 27.9514 13.96 28.4154 13.272C28.8954 12.584 29.1354 11.84 29.1354 11.04Z" fill="currentColor"></path><path d="M47.9589 16.512H41.9829V14.184H43.4229V10.416C43.4229 9.488 43.2629 8.824 42.9429 8.424C42.6389 8.024 42.1829 7.824 41.5749 7.824C40.8389 7.824 40.2709 8.056 39.8709 8.52C39.4709 8.968 39.2629 9.56 39.2469 10.296V14.184H40.6869V16.512H34.7109V14.184H36.1509V8.04H34.5909V5.688H39.2469V7.344C39.9669 6.096 41.1269 5.472 42.7269 5.472C43.7509 5.472 44.6389 5.776 45.3909 6.384C46.1429 6.992 46.5189 7.936 46.5189 9.216V14.184H47.9589V16.512Z" fill="currentColor"></path></svg></a><p>Your blueprint for a better internet.</p><ul class="social-icons"><li><a href="https://mastodon.social/@mdn" target="_blank" rel="me noopener noreferrer"><span class="icon icon-mastodon"></span><span class="visually-hidden">MDN on Mastodon</span></a></li><li><a href="https://twitter.com/mozdevnet" target="_blank" rel="noopener noreferrer"><span class="icon icon-twitter-x"></span><span class="visually-hidden">MDN on X (formerly Twitter)</span></a></li><li><a href="https://github.com/mdn/" target="_blank" rel="noopener noreferrer"><span class="icon icon-github-mark-small"></span><span class="visually-hidden">MDN on GitHub</span></a></li><li><a href="/en-US/blog/rss.xml" target="_blank"><span class="icon icon-feed"></span><span class="visually-hidden">MDN Blog RSS Feed</span></a></li></ul></div><div class="page-footer-nav-col-1"><h2 class="footer-nav-heading">MDN</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a href="/en-US/about">About</a></li><li class="footer-nav-item"><a href="/en-US/blog/">Blog</a></li><li class="footer-nav-item"><a href="https://www.mozilla.org/en-US/careers/listings/?team=ProdOps" target="_blank" rel="noopener noreferrer">Careers</a></li><li class="footer-nav-item"><a href="/en-US/advertising">Advertise with us</a></li></ul></div><div class="page-footer-nav-col-2"><h2 class="footer-nav-heading">Support</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="https://support.mozilla.org/products/mdn-plus">Product help</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/de/docs/MDN/Community/Issues">Report an issue</a></li></ul></div><div class="page-footer-nav-col-3"><h2 class="footer-nav-heading">Our communities</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="/en-US/community">MDN Community</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="https://discourse.mozilla.org/c/mdn/236" target="_blank" rel="noopener noreferrer">MDN Forum</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/discord" target="_blank" rel="noopener noreferrer">MDN Chat</a></li></ul></div><div class="page-footer-nav-col-4"><h2 class="footer-nav-heading">Developers</h2><ul class="footer-nav-list"><li class="footer-nav-item"><a class="footer-nav-link" href="/de/docs/Web">Web Technologies</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/de/docs/Learn">Learn Web Development</a></li><li class="footer-nav-item"><a class="footer-nav-link" href="/de/plus">MDN Plus</a></li><li class="footer-nav-item"><a href="https://hacks.mozilla.org/" target="_blank" rel="noopener noreferrer">Hacks Blog</a></li></ul></div><div class="page-footer-moz"><a href="https://www.mozilla.org/" class="footer-moz-logo-link" target="_blank" rel="noopener noreferrer"><svg xmlns="http://www.w3.org/2000/svg" width="137" height="32" fill="none" viewBox="0 0 267.431 62.607"><path fill="currentColor" d="m13.913 23.056 5.33 25.356h2.195l5.33-25.356h14.267v38.976h-7.578V29.694h-2.194l-7.264 32.337h-7.343L9.418 29.694H7.223v32.337H-.354V23.056Zm47.137 9.123c9.12 0 14.423 5.385 14.423 15.214s-5.33 15.214-14.423 15.214c-9.12 0-14.423-5.385-14.423-15.214 0-9.855 5.304-15.214 14.423-15.214m0 24.363c4.285 0 6.428-2.196 6.428-7.032v-4.287c0-4.836-2.143-7.032-6.428-7.032s-6.428 2.196-6.428 7.032v4.287c0 4.836 2.143 7.032 6.428 7.032m18.473-.157 15.47-18.01h-15.26v-5.647h24.352v5.646L88.616 56.385h15.704v5.646H79.523Zm29.318-23.657h11.183V62.03h-7.578V38.375h-3.632v-5.646zm3.605-9.672h7.578v5.646h-7.578zm13.17 0h11.21v38.976h-7.578v-33.33h-3.632zm16.801 0H153.6v38.976h-7.577v-33.33h-3.632v-5.646zm29.03 9.123c4.442 0 7.394 2.143 8.231 5.881h2.194v-5.332h9.276v5.646h-3.632v18.011h3.632v5.646h-4.442c-3.135 0-4.834-1.699-4.834-4.836V56.7h-2.194c-.81 3.738-3.789 5.881-8.23 5.881-6.978 0-11.916-5.829-11.916-15.214 0-9.384 4.938-15.187 11.915-15.187m2.3 24.363c4.284 0 6.192-2.196 6.192-7.032v-4.287c0-4.836-1.908-7.032-6.193-7.032-4.18 0-6.193 2.196-6.193 7.032v4.287c0 4.836 2.012 7.032 6.193 7.032m48.34 5.489h-7.577V0h7.577zm6.585-29.643h32.165v-2.196l-21.295-7.634v-6.143l21.295-7.633V6.588h-25.345V0h32.165v12.522l-17.35 5.881V20.6l17.35 5.882v12.521h-38.985zm0-25.801h6.794v6.796h-6.794z"></path></svg></a><ul class="footer-moz-list"><li class="footer-moz-item"><a href="https://www.mozilla.org/privacy/websites/" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Website Privacy Notice</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/privacy/websites/#cookies" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Cookies</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/about/legal/terms/mozilla" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Legal</a></li><li class="footer-moz-item"><a href="https://www.mozilla.org/about/governance/policies/participation/" class="footer-moz-link" target="_blank" rel="noopener noreferrer">Community Participation Guidelines</a></li></ul></div><div class="page-footer-legal"><p id="license" class="page-footer-legal-text">Visit <a href="https://www.mozilla.org" target="_blank" rel="noopener noreferrer">Mozilla Corporation’s</a> not-for-profit parent, the <a target="_blank" rel="noopener noreferrer" href="https://foundation.mozilla.org/">Mozilla Foundation</a>.<br/>Portions of this content are ©1998–2025 by individual mozilla.org contributors. Content available under <a href="/de/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/de/docs/Web/HTTP/Compression","doc":{"body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<p><strong>Kompression</strong> ist ein wichtiger Weg, um die Leistung einer Website zu steigern. Bei einigen Dokumenten kann eine Reduzierung der Größe um bis zu 70% den Bedarf an Bandbreitenkapazität verringern. Im Laufe der Jahre wurden Algorithmen effizienter, und neue werden von Clients und Servern unterstützt.</p>\n<p>In der Praxis müssen Webentwickler keine Kompressionsmechanismen implementieren, da sowohl Browser als auch Server diese bereits integriert haben, aber sie müssen sicherstellen, dass der Server entsprechend konfiguriert ist. Die Kompression erfolgt auf drei verschiedenen Ebenen:</p>\n<ul>\n<li>Zuerst werden einige Dateiformate mit spezifisch optimierten Methoden komprimiert,</li>\n<li>dann kann auf HTTP-Ebene eine allgemeine Kompression erfolgen (die Ressource wird von Ende zu Ende komprimiert übertragen),</li>\n<li>und schließlich kann die Kompression auf Verbindungsebene zwischen zwei Knoten einer HTTP-Verbindung definiert werden.</li>\n</ul>"}},{"type":"prose","value":{"id":"kompression_von_dateiformaten","title":"Kompression von Dateiformaten","isH3":false,"content":"<p>Jeder Datentyp hat eine gewisse Redundanz, das sind <em>verschwendete Räume</em>, in sich. Wenn Text typischerweise bis zu 60% Redundanz aufweisen kann, kann diese Rate bei anderen Medien wie Audio und Video viel höher sein. Im Gegensatz zu Text benötigen diese anderen Medientypen viel Speicherplatz, um ihre Daten zu speichern, und die Notwendigkeit, den Speicher zu optimieren und Platz zurückzugewinnen, wurde sehr früh deutlich. Ingenieure entwickelten den optimierten Kompressionsalgorithmus, der von Dateiformaten verwendet wird, die für diesen speziellen Zweck entworfen wurden. Kompressionsalgorithmen für Dateien können in zwei Hauptkategorien unterteilt werden:</p>\n<ul>\n<li><em>Verlustfreie Kompression</em>, bei der der Kompressions-Dekompressionszyklus die wiederhergestellten Daten nicht verändert. Diese stimmen (Byte für Byte) mit dem Original überein.\nFür Bilder verwenden <code>gif</code> oder <code>png</code> verlustfreie Kompression.</li>\n<li><em>Verlustbehaftete Kompression</em>, bei der der Zyklus die Originaldaten in einer (hoffentlich) für den Benutzer unmerklichen Weise verändert.\nVideoformate im Web sind verlustbehaftet; das <code>jpeg</code>-Bildformat ist ebenfalls verlustbehaftet.</li>\n</ul>\n<p>Einige Formate können sowohl für verlustfreie als auch für verlustbehaftete Kompression verwendet werden, wie <code>webp</code>, und in der Regel kann der verlustbehaftete Algorithmus so konfiguriert werden, dass er mehr oder weniger komprimiert, was dann natürlich zu weniger oder mehr Qualität führt. Für eine bessere Leistung einer Website ist es ideal, so viel wie möglich zu komprimieren, während ein akzeptables Qualitätsniveau beibehalten wird. Bei Bildern kann ein von einem Werkzeug generiertes Bild nicht ausreichend für das Web optimiert sein; es wird empfohlen, Werkzeuge zu verwenden, die so viel wie möglich mit der erforderlichen Qualität komprimieren. Es gibt <a href=\"https://www.creativebloq.com/design/image-compression-tools-1132865\" class=\"external\" target=\"_blank\">zahlreiche Werkzeuge</a>, die darauf spezialisiert sind.</p>\n<p>Verlustbehaftete Kompressionsalgorithmen sind in der Regel effizienter als verlustfreie.</p>\n<div class=\"notecard note\">\n<p><strong>Hinweis:</strong>\nDa Kompression besser bei einer bestimmten Art von Dateien funktioniert, bringt es normalerweise nichts, sie ein zweites Mal zu komprimieren. Tatsächlich ist dies oft kontraproduktiv, da die Kosten des Overheads (Algorithmen benötigen in der Regel ein Wörterbuch, das die Anfangsgröße erhöht) höher sein können als der zusätzliche Gewinn durch die Kompression, was zu einer größeren Datei führt. Verwenden Sie die folgenden Techniken nicht für Dateien in einem komprimierten Format.</p>\n</div>"}},{"type":"prose","value":{"id":"end-to-end-kompression","title":"End-to-End-Kompression","isH3":false,"content":"<p>Bei der Kompression liegen die größten Leistungsverbesserungen von Websites bei der End-to-End-Kompression. End-to-End-Kompression bezieht sich auf eine Kompression des Körpers einer Nachricht, die vom Server durchgeführt wird und unverändert bis zum Client bleibt. Unabhängig von den Zwischenknoten bleibt der Körper unangetastet.</p>\n<p><img src=\"/de/docs/Web/HTTP/Compression/httpenco1.svg\" alt=\"Ein Server sendet einen komprimierten HTTP-Körper über Netzknoten an einen Client. Der Körper wird auf keinem Netzwerk-Hop dekomprimiert, bis er den Client erreicht.\" width=\"950\" height=\"463\" loading=\"lazy\"></p>\n<p>Alle modernen Browser und Server unterstützen End-to-End-Kompression und das Einzige, was ausgehandelt werden muss, ist der zu verwendende Kompressionsalgorithmus. Diese Algorithmen sind für Text optimiert. In den 1990er Jahren entwickelte sich die Kompressionstechnologie rasant weiter und zahlreiche aufeinanderfolgende Algorithmen wurden zu den möglichen Auswahlmöglichkeiten hinzugefügt. Heutzutage sind nur zwei relevant: <code>gzip</code>, der am häufigsten verwendete, und <code>br</code>, der neue Herausforderer.</p>\n<p>Zur Auswahl des zu verwendenden Algorithmus verwenden Browser und Server <a href=\"/de/docs/Web/HTTP/Content_negotiation\">proaktives Inhaltsaushandeln</a>. Der Browser sendet einen <a href=\"/de/docs/Web/HTTP/Headers/Accept-Encoding\"><code>Accept-Encoding</code></a>-Header mit den unterstützten Algorithmen und deren Rangfolge, der Server wählt einen aus, verwendet ihn, um den Körper der Antwort zu komprimieren, und verwendet den <a href=\"/de/docs/Web/HTTP/Headers/Content-Encoding\"><code>Content-Encoding</code></a>-Header, um dem Browser mitzuteilen, welchen Algorithmus er gewählt hat. Da das Inhaltsaushandeln verwendet wurde, um eine Darstellung basierend auf ihrer Kodierung auszuwählen, muss der Server einen <a href=\"/de/docs/Web/HTTP/Headers/Vary\"><code>Vary</code></a>-Header senden, der mindestens <a href=\"/de/docs/Web/HTTP/Headers/Accept-Encoding\"><code>Accept-Encoding</code></a> enthält, und diesen Header in die Antwort aufnehmen; so können Caches die verschiedenen Darstellungen der Ressource cachen.</p>\n<p><img src=\"/de/docs/Web/HTTP/Compression/httpcompression1.svg\" alt=\"Ein Client fordert Inhalt mit einem 'Accept-Encoding: br, gzip'-Header an. Der Server antwortet mit einem Körper, der mit dem Brotli-Algorithmus komprimiert ist, sowie den erforderlichen 'Content-Encoding'- und 'Vary'-Headern.\" width=\"850\" height=\"479\" loading=\"lazy\"></p>\n<p>Da die Kompression erhebliche Leistungsverbesserungen bringt, wird empfohlen, sie für alle Dateien außer bereits komprimierten wie Bilder, Audiodateien und Videos zu aktivieren.</p>\n<p>Apache unterstützt Kompression und verwendet <a href=\"https://httpd.apache.org/docs/current/mod/mod_deflate.html\" class=\"external\" target=\"_blank\">mod_deflate</a>; für Nginx gibt es das <a href=\"https://nginx.org/en/docs/http/ngx_http_gzip_module.html\" class=\"external\" target=\"_blank\">ngx_http_gzip_module</a>; für IIS das <a href=\"https://learn.microsoft.com/en-us/iis/configuration/system.webServer/httpCompression/\" class=\"external\" target=\"_blank\"><code><httpCompression></code></a>-Element.</p>"}},{"type":"prose","value":{"id":"hop-by-hop-kompression","title":"Hop-by-Hop-Kompression","isH3":false,"content":"<p>Hop-by-Hop-Kompression ähnelt der End-to-End-Kompression, unterscheidet sich jedoch in einem wesentlichen Element: Die Kompression erfolgt nicht auf der Ressource auf dem Server, um eine spezifische Darstellung zu schaffen, die dann übertragen wird, sondern auf dem Körper der Nachricht zwischen zwei beliebigen Knoten auf dem Weg zwischen Client und Server. Verbindungen zwischen aufeinanderfolgenden Zwischenknoten können eine <em>andere</em> Kompression anwenden.</p>\n<p><img src=\"/de/docs/Web/HTTP/Compression/httpte1.svg\" alt=\"Ein Server sendet einen unkomprimierten HTTP-Körper über Netzknoten an einen Client. Der Körper wird von Knoten im Netzwerk komprimiert und dekomprimiert, abhängig von 'Transfer-Encoding'-Headern, bevor er den Client erreicht.\" width=\"1132\" height=\"624\" loading=\"lazy\"></p>\n<p>Um dies zu tun, verwendet HTTP einen Mechanismus, ähnlich der Inhaltsaushandeln für End-to-End-Kompression: der Knoten, der die Anfrage übermittelt, gibt seinen Willen mit dem <a href=\"/de/docs/Web/HTTP/Headers/TE\"><code>TE</code></a>-Header an, und der andere Knoten wählt die geeignete Methode, wendet sie an und gibt seine Wahl mit dem <a href=\"/de/docs/Web/HTTP/Headers/Transfer-Encoding\"><code>Transfer-Encoding</code></a>-Header an.</p>\n<p><img src=\"/de/docs/Web/HTTP/Compression/httpcomp2.svg\" alt=\"Ein Client fordert Inhalt von einem Server ohne kompressionsbezogene Header an. Der Server antwortet mit einem unkomprimierten Körper. Der Körper wird von Knoten im Netzwerk komprimiert und dekomprimiert, bevor er den Client erreicht.\" width=\"951\" height=\"943\" loading=\"lazy\"></p>\n<p>In der Praxis ist die Hop-by-Hop-Kompression sowohl für den Server als auch für den Client transparent und wird selten verwendet. <a href=\"/de/docs/Web/HTTP/Headers/TE\"><code>TE</code></a> und <a href=\"/de/docs/Web/HTTP/Headers/Transfer-Encoding\"><code>Transfer-Encoding</code></a> werden meist verwendet, um eine Antwort in Teilen zu senden, was es ermöglicht, eine Ressource zu übertragen, ohne ihre Länge zu kennen.</p>\n<p>Beachten Sie, dass die Verwendung von <a href=\"/de/docs/Web/HTTP/Headers/Transfer-Encoding\"><code>Transfer-Encoding</code></a> und Kompression auf Hop-Ebene so selten ist, dass die meisten Server, wie Apache, Nginx oder IIS, keine einfache Möglichkeit haben, sie zu konfigurieren. Eine solche Konfiguration erfolgt in der Regel auf Proxy-Ebene.</p>"}},{"type":"prose","value":{"id":"siehe_auch","title":"Siehe auch","isH3":false,"content":"<ul>\n<li>Glossarbegriffe:\n<ul>\n<li><a href=\"/de/docs/Glossary/Brotli_compression\">Brotli-Kompression</a></li>\n<li><a href=\"/de/docs/Glossary/gzip_compression\">Gzip-Kompression</a></li>\n<li><a href=\"/de/docs/Glossary/Lossless_compression\">Verlustfreie Kompression</a></li>\n<li><a href=\"/de/docs/Glossary/Lossy_compression\">Verlustbehaftete Kompression</a></li>\n<li><a href=\"/de/docs/Glossary/Zstandard_compression\">Zstandard-Kompression</a></li>\n</ul>\n</li>\n</ul>"}}],"isActive":true,"isMarkdown":true,"isTranslated":true,"locale":"de","mdn_url":"/de/docs/Web/HTTP/Compression","modified":"2025-02-17T00:20:27.000Z","native":"Deutsch","noIndexing":false,"other_translations":[{"locale":"en-US","title":"Compression in HTTP","native":"English (US)"},{"locale":"fr","title":"Compression dans HTTP","native":"Français"},{"locale":"ja","title":"HTTP の圧縮","native":"日本語"},{"locale":"ko","title":"HTTP에서의 압축","native":"한국어"},{"locale":"pt-BR","title":"Compressão em HTTP","native":"Português (do Brasil)"},{"locale":"zh-CN","title":"HTTP 协议中的数据压缩","native":"中文 (简体)"}],"pageTitle":"Kompression im HTTP - HTTP | MDN","parents":[{"uri":"/de/docs/Web","title":"Webtechnologie für Entwickler"},{"uri":"/de/docs/Web/HTTP","title":"HTTP"},{"uri":"/de/docs/Web/HTTP/Compression","title":"Kompression im HTTP"}],"popularity":null,"short_title":"Kompression im HTTP","sidebarHTML":"<ol><li class=\"section\"><a href=\"/de/docs/Web/HTTP\">HTTP</a></li><li class=\"section\">Anleitungen</li><li><a href=\"/de/docs/Web/HTTP/Overview\">Ein Überblick über HTTP</a></li><li><a href=\"/de/docs/Web/HTTP/Session\">Ein typischer HTTP-Session</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-Medientypen)</a></li><li><em><a href=\"/de/docs/Web/HTTP/Compression\" aria-current=\"page\">Kompression im HTTP</a></em></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\">Umleitungen im 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\">Inhaltsaushandlung</a></li><li><a href=\"/de/docs/Web/HTTP/Connection_management_in_HTTP_1.x\">Verbindungsverwaltung in HTTP/1.x</a></li><li><a href=\"/de/docs/Web/HTTP/Evolution_of_HTTP\">Evolution von HTTP</a></li><li><a href=\"/de/docs/Web/HTTP/Protocol_upgrade_mechanism\">Protokoll-Upgrade-Mechanismus</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 Anleitungen zur Sicherheitsimplementierung</a></li><li><a href=\"/en-US/observatory\" class=\"only-in-en-us\">HTTP Observatory</a></li><li><a href=\"/de/docs/Web/HTTP/Permissions_Policy\">Berechtigungsrichtlinie</a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></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\">Headers</a></li></ol></details></li><li class=\"section\">Referenzen</li><li class=\"toggle\"><details><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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 empfohlen für neue Webseiten.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</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><a href=\"/de/docs/Web/HTTP/Headers/Server-Timing\"><code>Server-Timing</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Service-Worker\"><code>Service-Worker</code></a></li><li><a href=\"/de/docs/Web/HTTP/Headers/Service-Worker-Allowed\"><code>Service-Worker-Allowed</code></a></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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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 empfohlen für neue Webseiten.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\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></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Permitted-Cross-Domain-Policies\"><code>X-Permitted-Cross-Domain-Policies</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Powered-By\"><code>X-Powered-By</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/X-Robots-Tag\"><code>X-Robots-Tag</code></a><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\n<span class=\"visually-hidden\">Veraltet</span>\n</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 empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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 vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr><abbr class=\"icon icon-deprecated\" title=\"Veraltet. Nicht empfohlen für neue Webseiten.\">\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 empfohlen für neue Webseiten.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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. Das Verhalten könnte sich in Zukunft ändern.\">\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></details></li><li class=\"toggle\"><details><summary>CORS-Fehler</summary><ol><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSDisabled\"><code>Reason: CORS disabled</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSAllowOriginNotMatchingOrigin\"><code>Reason: CORS header 'Access-Control-Allow-Origin' does not match 'xyz'</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowOrigin\"><code>Reason: CORS header 'Access-Control-Allow-Origin' missing</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSOriginHeaderNotAdded\"><code>Reason: CORS header 'Origin' cannot be added</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSPreflightDidNotSucceed\"><code>Reason: CORS preflight channel did not succeed</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSDidNotSucceed\"><code>Reason: CORS request did not succeed</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSExternalRedirectNotAllowed\"><code>Reason: CORS request external redirect not allowed</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSRequestNotHttp\"><code>Reason: CORS request not HTTP</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSNotSupportingCredentials\"><code>Reason: Credential is not supported if the CORS header 'Access-Control-Allow-Origin' is '*'</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMethodNotFound\"><code>Reason: Did not find method in CORS header 'Access-Control-Allow-Methods'</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMIssingAllowCredentials\"><code>Reason: expected 'true' in CORS header 'Access-Control-Allow-Credentials'</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowHeader\"><code>Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Headers'</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSInvalidAllowMethod\"><code>Reason: invalid token 'xyz' in CORS header 'Access-Control-Allow-Methods'</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMissingAllowHeaderFromPreflight\"><code>Reason: missing token 'xyz' in CORS header 'Access-Control-Allow-Headers' from CORS preflight channel</code></a></li><li><a href=\"/de/docs/Web/HTTP/CORS/Errors/CORSMultipleAllowOriginNotAllowed\"><code>Reason: Multiple CORS header 'Access-Control-Allow-Origin' not allowed</code></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\"><code>Permissions-Policy: accelerometer</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/ambient-light-sensor\"><code>Permissions-Policy: ambient-light-sensor</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/attribution-reporting\"><code>Permissions-Policy: attribution-reporting</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/autoplay\"><code>Permissions-Policy: autoplay</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/bluetooth\"><code>Permissions-Policy: bluetooth</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/browsing-topics\"><code>Permissions-Policy: browsing-topics</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr><abbr class=\"icon icon-nonstandard\" title=\"Nicht standardisiert. Überprüfen Sie vor der Verwendung die Browser-Kompatibilität.\">\n<span class=\"visually-hidden\">Nicht standardisiert</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/camera\"><code>Permissions-Policy: camera</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/compute-pressure\"><code>Permissions-Policy: compute-pressure</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/cross-origin-isolated\"><code>Permissions-Policy: cross-origin-isolated</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/display-capture\"><code>Permissions-Policy: display-capture</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/document-domain\"><code>Permissions-Policy: document-domain</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/encrypted-media\"><code>Permissions-Policy: encrypted-media</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/fullscreen\"><code>Permissions-Policy: fullscreen</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/gamepad\"><code>Permissions-Policy: gamepad</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/geolocation\"><code>Permissions-Policy: geolocation</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/gyroscope\"><code>Permissions-Policy: gyroscope</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/hid\"><code>Permissions-Policy: hid</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/identity-credentials-get\"><code>Permissions-Policy: identity-credentials-get</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/idle-detection\"><code>Permissions-Policy: idle-detection</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/local-fonts\"><code>Permissions-Policy: local-fonts</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/magnetometer\"><code>Permissions-Policy: magnetometer</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/microphone\"><code>Permissions-Policy: microphone</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/midi\"><code>Permissions-Policy: midi</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/otp-credentials\"><code>Permissions-Policy: otp-credentials</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/payment\"><code>Permissions-Policy: payment</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/picture-in-picture\"><code>Permissions-Policy: picture-in-picture</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-create\"><code>Permissions-Policy: publickey-credentials-create</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/publickey-credentials-get\"><code>Permissions-Policy: publickey-credentials-get</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/screen-wake-lock\"><code>Permissions-Policy: screen-wake-lock</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/serial\"><code>Permissions-Policy: serial</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/speaker-selection\"><code>Permissions-Policy: speaker-selection</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/storage-access\"><code>Permissions-Policy: storage-access</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/usb\"><code>Permissions-Policy: usb</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/web-share\"><code>Permissions-Policy: web-share</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/window-management\"><code>Permissions-Policy: window-management</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li><li><a href=\"/de/docs/Web/HTTP/Headers/Permissions-Policy/xr-spatial-tracking\"><code>Permissions-Policy: xr-spatial-tracking</code></a><abbr class=\"icon icon-experimental\" title=\"Experimentell. Das Verhalten könnte sich in Zukunft ändern.\">\n<span class=\"visually-hidden\">Experimentell</span>\n</abbr></li></ol></details></li><li><a href=\"/de/docs/Web/HTTP/Resources_and_specifications\">HTTP-Ressourcen und -Spezifikationen</a></li></ol>","source":{"folder":"de/web/http/compression","github_url":"https://github.com/mdn/translated-content-de/blob/main/files/de/web/http/compression/index.md","last_commit_url":"https://github.com/mdn/translated-content-de/commit/452fe502cfb4c9a91c346af17370ecfb6a8bd17e","filename":"index.md"},"summary":"Kompression ist ein wichtiger Weg, um die Leistung einer Website zu steigern. Bei einigen Dokumenten kann eine Reduzierung der Größe um bis zu 70% den Bedarf an Bandbreitenkapazität verringern. Im Laufe der Jahre wurden Algorithmen effizienter, und neue werden von Clients und Servern unterstützt.","title":"Kompression im HTTP","toc":[{"text":"Kompression von Dateiformaten","id":"kompression_von_dateiformaten"},{"text":"End-to-End-Kompression","id":"end-to-end-kompression"},{"text":"Hop-by-Hop-Kompression","id":"hop-by-hop-kompression"},{"text":"Siehe auch","id":"siehe_auch"}],"pageType":"guide"}}</script></body></html>