Internet Engineering Task Force (IETF)S. Ludin
Request for Comments: 9213Akamai
Category: Standards TrackM. Nottingham
ISSN: 2070-1721Fastly
Y. Wu
June 2022

Targeted HTTP Cache Control


This specification defines a convention for HTTP response header fields that allow cache directives to be targeted at specific caches or classes of caches. It also defines one such header field, the CDN-Cache-Control response header field, which is targeted at content delivery network (CDN) caches.