The following 15 HTTP Cache Directive values were found in all available webconcepts.info specifications. Please be advised that the table shown here is maintained and compiled from Web Concepts sources. The official HTTP Cache Directive registry is maintained by the Internet Assigned Numbers Authority (IANA).

HTTP Cache Directive Specification
immutable Internet Draft ietf-httpbis-immutable: HTTP Immutable Responses
max-age RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
max-stale RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
min-fresh RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
must-revalidate RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
no-cache RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
no-store RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
no-transform RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
only-if-cached RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
private RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
proxy-revalidate RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
public RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
s-maxage RFC 7234: Hypertext Transfer Protocol (HTTP/1.1): Caching
stale-if-error RFC 5861: HTTP Cache-Control Extensions for Stale Content
stale-while-revalidate RFC 5861: HTTP Cache-Control Extensions for Stale Content



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