HTTP registry: fwd-status

Indicates which status code (see, Section 15) the next-hop server returned in response to the forwarded request.

Caching values control freshness, reuse, validation, and visibility across browser, proxy, and CDN layers. fwd-status is registered in HTTP Cache-Status. Defining reference: rfc9211.

httpregistryhttp-cache-statushttp-cache-status-names

Identifier (http)

fwd-status

Indicates which status code (see, Section 15) the next-hop server returned in response to the forwarded request.

Keep cache keys aligned with response variation, separate private from shared data, and test stale and revalidation behavior across intermediaries.

This registry value is currently marked active by IANA. Follow the defining specification before sending, accepting, or proxying it.

IANA registry: http-cache-status/http-cache-status-names

Registry reference: rfc9211

Sources

HTTP Cache-Status
rfc9211