HTTP/3
The next-generation version of the HTTP protocol, built on QUIC. It supports multiplexing and 0-RTT connections and serves as the underlying transport for low-latency bidirectional capabilities such as WebTransport.
Core Facts
Timeline (last 90 days)
HTTP/3 is said to be able to take down seven of the ten kinds of web servers tested with a single connection.
QPACK is the algorithm used for header compression in HTTP/3, similar to HPACK in HTTP/2.
Large internet companies have begun adopting HTTP/3, and HTTP/3 deployment is becoming increasingly widespread.
If an HTTP/3 server does not limit QPACK header size, it may face a serious amplification attack risk.
SSE runs on top of standard HTTP/1.1 chunked transfer encoding or HTTP/2 and HTTP/3 multiplexed streams.
HTTP/3 uses the UDP-based QUIC protocol, which achieves true inter-stream independence at the transport layer, fundamentally avoiding the Head-of-Line Blocking problem.
HTTP/3 is the next-generation HTTP standard based on the QUIC transport protocol, officially published by the IETF in 2022 (RFC 9114).
Caddy is a modern open-source web server written in Go that supports HTTP/1, HTTP/2, and HTTP/3 protocols and features automatic HTTPS functionality.
SSH3 was developed by researchers at the French institution INRIA and rebuilds the SSH protocol on top of HTTP/3 (based on QUIC); it is still in an experimental stage.
SSH3 was developed by researchers at the French research institution INRIA, with the core idea of using HTTP/3 (based on the QUIC protocol) as the transport layer.
All Facts (11)
QUIC is a transport-layer protocol designed by Google and later standardized by IETF, and has become the underlying transport for HTTP/3.
65%UnverifiedHTTP/3 is said to be able to take down seven of the ten kinds of web servers tested with a single connection.
50%UnverifiedIf an HTTP/3 server does not limit QPACK header size, it may face a serious amplification attack risk.
50%UnverifiedQPACK is the algorithm used for header compression in HTTP/3, similar to HPACK in HTTP/2.
50%UnverifiedLarge internet companies have begun adopting HTTP/3, and HTTP/3 deployment is becoming increasingly widespread.
50%UnverifiedSSE runs on top of standard HTTP/1.1 chunked transfer encoding or HTTP/2 and HTTP/3 multiplexed streams.
50%UnverifiedHTTP/3 uses the UDP-based QUIC protocol, which achieves true inter-stream independence at the transport layer, fundamentally avoiding the Head-of-Line Blocking problem.
50%UnverifiedHTTP/3 is the next-generation HTTP standard based on the QUIC transport protocol, officially published by the IETF in 2022 (RFC 9114).
50%UnverifiedCaddy is a modern open-source web server written in Go that supports HTTP/1, HTTP/2, and HTTP/3 protocols and features automatic HTTPS functionality.
50%UnverifiedSSH3 was developed by researchers at the French institution INRIA and rebuilds the SSH protocol on top of HTTP/3 (based on QUIC); it is still in an experimental stage.
50%UnverifiedSSH3 was developed by researchers at the French research institution INRIA, with the core idea of using HTTP/3 (based on the QUIC protocol) as the transport layer.
50%