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https://httpwg.org/specs/rfc5861.html
RFC 5861 - HTTP Cache-Control Extensions for Stale Content
HTTP Cache-Control Extensions for Stale Content
http cache controlrfc5861extensionsstale
https://datatracker.ietf.org/doc/rfc9213/
RFC 9213 - 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...
http cache controlrfc9213targeted
https://httpwg.org/specs/rfc9213.html
RFC 9213 - Targeted HTTP Cache Control
Targeted HTTP Cache Control
http cache controlrfc9213targeted
https://http.dev/x-litespeed-cache-control
X-LiteSpeed-Cache-Control - Expert Guide to HTTP headers
Apr 4, 2026 - Configure LiteSpeed-specific caching with X-LiteSpeed-Cache-Control. Set TTL, public/private scope, and ESI directives for LSCache.
litespeed cachecontrol experthttp headersguide