HTTP/3

HTTP/3 is a major revision of the HTTP network protocol, succeeding {{glossary("HTTP 2", "HTTP/2")}}.

The most notable difference in HTTP/3 is that it uses a protocol named {{glossary("QUIC")}} over {{glossary("UDP")}} instead of {{glossary("TCP")}}. This reduces {{glossary("latency")}} and eliminates the {{glossary("head of line blocking", "head-of-line blocking")}} problem in HTTP.

See also

• HTTP on MDN
• HTTP/3 on Wikipedia
• Related glossary terms:
  • {{glossary("HTTP")}}, {{glossary("HTTP 2")}}
  • {{glossary("TCP")}}, {{glossary("QUIC")}}, {{glossary("UDP")}}
  • {{glossary("Latency")}}, {{glossary("head of line blocking", "Head-of-line blocking")}}