Internet Engineering Task Force (IETF)R. Fielding, Editor
Request for Comments: 9111Adobe
Obsoletes: 7234M. Nottingham, Editor
STD: 98Fastly
Category: Standards TrackJ. Reschke, Editor
ISSN: 2070-1721greenbytes
June 2022

HTTP Caching


The Hypertext Transfer Protocol (HTTP) is a stateless application-level protocol for distributed, collaborative, hypertext information systems. This document defines HTTP caches and the associated header fields that control cache behavior or indicate cacheable response messages.

This document obsoletes RFC 7234.