HTTP/3 is a major revision of theHTTP network protocol, succeedingHTTP/2.

The most notable difference in HTTP/3 is that it uses a protocol namedQUIC overUDP instead ofTCP.This reduceslatency and eliminates thehead-of-line blocking problem in HTTP.

See also

• HTTP on MDN
• HTTP/3 on Wikipedia
• Related glossary terms:
  • HTTP,HTTP 2
  • TCP,QUIC,UDP
  • Latency,Head-of-line blocking