{"id":25269,"date":"2019-04-06T04:57:55","date_gmt":"2019-04-06T03:57:55","guid":{"rendered":"https:\/\/staging.kinsta.site\/?p=42574"},"modified":"2022-04-06T14:19:48","modified_gmt":"2022-04-06T13:19:48","slug":"http3","status":"publish","type":"post","link":"https:\/\/staging.kinsta.site\/fr\/blog\/http3\/","title":{"rendered":"Qu\u2019est-ce que HTTP\/3 – Informations sur le nouveau protocole UDP rapide ?"},"content":{"rendered":"

TL;DR<\/span><\/span><\/h3>\n

In November 2018, the Internet Engineering Task Force (IETF) met in Bangkok and a new <\/span><\/span>Internet project<\/span><\/span><\/a> was adopted. <\/span>The QUIC transport protocol, <\/span><\/span>the successor to HTTP\/2<\/span><\/span><\/a> , has been renamed to HTTP\/3.<\/span><\/span><\/p>\n

HTTP\/3 relies on UDP and is already used by major Internet companies such as Google and Facebook. <\/span>If you’re using Chrome and connecting to a Google service, you’re probably already using QUIC.<\/span><\/span><\/p>\n

The new version of the HTTP protocol takes advantage of the bare-metal, low-level UDP protocol, and defines many of the new features that were in previous versions of the HTTP protocol on the TCP layer. <\/span>This solves the constraints within the existing Internet infrastructure.<\/span><\/span><\/p>\n

Early results are promising, and when the IETF Internet Draft expires in August 2021, we can expect HTTP\/3 to be introduced as a new third-generation HTTP standard.<\/span><\/span><\/p>\n

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[shareable-quote tweet=\u00a0\u00bbJust like with HTTP\/2, HTTP\/3 will again build on these achievements to help speed up the web. ?\u00a0\u00bb user=\u00a0\u00bbKinsta_FR\u00a0\u00bb hashtags=\u00a0\u00bbHTTP3,webperf\u00a0\u00bb]<\/span><\/span><\/p>\n

Progress of HTTP\/3 in 2026<\/span><\/span><\/h2>\n

Some say the web industry’s thirst for speed and latency is matched only by Google Chrome’s thirst for more RAM.<\/span><\/span><\/p>\n

A few years ago, <\/span><\/span>we published an article on HTTP\/2<\/span><\/span><\/a> , a standard which, <\/span><\/span>according to W3Techs<\/span><\/span><\/a> , has now achieved a global adoption rate of around 45%. <\/span>And according to <\/span><\/span>Can I Use<\/span><\/span><\/a> , it’s also supported by all modern web browsers. <\/span>However, here we are writing an article about the next version of the protocol, HTTP\/3.<\/span><\/span><\/p>\n

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HTTP\/2 adoption trend.<\/span><\/span><\/figcaption><\/figure>\n

HTTP\/3 is, at the time of this writing, an <\/span><\/span>Internet-Draft or <\/span><\/span><\/a>IETF<\/span><\/span><\/a> ID <\/span>, which means it is currently under consideration for a future Internet standard by the <\/span><\/span>Internet Engineering Task Force<\/span><\/span><\/a> – an <\/span>international <\/span>Internet standards <\/span><\/i><\/span>body<\/span><\/span><\/i> , responsible for defining and promoting approved Internet protocol standards, such as TCP, <\/span>IPv6<\/span><\/a> , VoIP, Internet of Things, etc.<\/span><\/span><\/i><\/p>\n

It is an open body that brings together the web industry and facilitates discussions on the direction of the Internet. <\/span>Currently, the \u00ab\u00a0Internet Draft\u00a0\u00bb phase of HTTP\/3 is the last phase before proposals are promoted to the Request-for-Comments ( <\/span><\/span>RFC<\/span><\/span><\/a> ) level, which we can consider, for all intents and purposes, as official definitions of the Internet protocol.<\/span><\/span><\/p>\n

Although HTTP\/3 is not yet an official Internet protocol, many companies and projects have already started adding support for HTTP\/3 in their products.<\/span><\/span><\/p>\n

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Qu'est-ce que le HTTP\/3 - En termes simples ?<\/h2>\n

HTTP\/3 est la troisi\u00e8me version du protocole HTTP (Hypertext Transfer Protocol), anciennement HTTP over-QUIC. QUIC (Quick UDP Internet Connections) a \u00e9t\u00e9 initialement d\u00e9velopp\u00e9 par Google et est le successeur de HTTP\/2. Des entreprises comme Google et Facebook utilisent d\u00e9j\u00e0 QUIC pour acc\u00e9l\u00e9rer le Web.<\/p>\n<\/div>\n <\/div>\n

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HTTP\/3 support by web browsers<\/span><\/span><\/h3>\n

As <\/span><\/span>for web browsers<\/span><\/span><\/a> , Chrome v87, Firefox v88, and Edge v87 all have HTTP\/3 enabled by default. <\/span>For Safari users, the option to enable HTTP\/3 was added in Safari Technology Preview v104. <\/span>However, HTTP\/3 support is not yet available in the stable version of Safari.<\/span><\/span><\/p>\n

Library support for HTTP\/3<\/span><\/span><\/h3>\n

For developers looking to leverage HTTP\/3 technologies, many popular libraries have already added support for HTTP\/3. <\/span>Since HTTP\/3 is still in the Internet Draft stage, you should make sure you are aware of the latest updates when working with any of the libraries below.<\/span><\/span><\/p>\n