410 Gone

The 410 (Gone) status code indicates that access to the target
resource is no longer available at the origin server and that this
condition is likely to be permanent. If the origin server does not

know, or has no facility to determine, whether or not the condition
is permanent, the status code 404 (Not Found) ought to be used

The 410 response is primarily intended to assist the task of web
maintenance by notifying the recipient that the resource is
intentionally unavailable and that the server owners desire that
remote links to that resource be removed. Such an event is common
for limited-time, promotional services and for resources belonging to
individuals no longer associated with the origin server’s site. It
is not necessary to mark all permanently unavailable resources as
“gone” or to keep the mark for any length of time – that is left to
the discretion of the server owner.

A 410 response is cacheable by default; i.e., unless otherwise
indicated by the method definition or explicit cache controls (see

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