RFC 8594: The Sunset HTTP Header Field

This specification defines the Sunset HTTP response header field, which indicates that a URI is likely to become unresponsive at a specified point in the future. It also defines a sunset link relation type that allows linking to resources providing information about an upcoming resource or service sunset.

IETF Datatracker
rfc8594 : The Sunset HTTP Header Field to deprecate URLs https://tools.ietf.org/html/rfc8594 #rfc8594 #sunset #http #api #rest
RFC 8594 - The Sunset HTTP Header Field