RFC 9114RFCShould KnowProduct2022

HTTP/3

HTTP·RFC Editor

WHY YOU NEED THIS

HTTP/3 is the current performance frontier for web delivery. CDNs enable it automatically; understand it for performance tuning and debugging.

What It Defines

HTTP/3 over QUIC. Eliminates TCP head-of-line blocking for multiplexed HTTP requests. Built-in TLS 1.3 via QUIC. Major CDNs and browsers support it by default.

Canonical (Normative)

RFC 9114

Convenient (Practical)

Cloudflare: HTTP/3

httphttp3quicperformance

Standards Body

RFC Editor

The canonical publication point for finalized RFCs. If a protocol is standardized as an RFC, the RFC Editor text is the normative final reference. Published by the IETF, IRTF, IAB, and independent stream.

Visit

Related Specs

RFC 9000RFCShould Know

QUIC

HTTP/3 runs on QUIC. Modern CDNs and browsers use it by default. It fixes TCP's head-of-line blocking problem for multiplexed requests.

ProductTransport

Details

RFC 9110RFCMust Know

HTTP Semantics

This is the core contract of every web API, browser request, and server response. You can't design or debug HTTP without knowing this.

ProductHTTP

Details