Hypertext Transfer Protocol (HTTP) Cache Directive Registry
Internet Assigned Numbers Authority

Hypertext Transfer Protocol (HTTP) Cache Directive Registry

Created
2014-02-17
Last Updated
2022-06-08
Available Formats

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Registry included below

HTTP Cache Directive Registry

Registration Procedure(s)
IETF Review
Reference
[RFC9111, Section 5.2.4]
Available Formats

CSV
Cache Directive Reference
immutable [RFC8246]
max-age [RFC9111, Section 5.2.1.1, 5.2.2.1]
max-stale [RFC9111, Section 5.2.1.2]
min-fresh [RFC9111, Section 5.2.1.3]
must-revalidate [RFC9111, Section 5.2.2.2]
must-understand [RFC9111, Section 5.2.2.3]
no-cache [RFC9111, Section 5.2.1.4, 5.2.2.4]
no-store [RFC9111, Section 5.2.1.5, 5.2.2.5]
no-transform [RFC9111, Section 5.2.1.6, 5.2.2.6]
only-if-cached [RFC9111, Section 5.2.1.7]
private [RFC9111, Section 5.2.2.7]
proxy-revalidate [RFC9111, Section 5.2.2.8]
public [RFC9111, Section 5.2.2.9]
s-maxage [RFC9111, Section 5.2.2.10]
stale-if-error [RFC5861, Section 4]
stale-while-revalidate [RFC5861, Section 3]