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Hypertext caching protocol
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<p>Hypertext Caching Protocol (abbreviated to HTCP) is used for discovering <a href="/facts/HTTP/TWtvf7JD">HTTP</a> caches and cached data, managing sets of HTTP caches and monitoring cache activity. It permits full request and response headers to be used in cache management and expands the domain of cache management to include monitoring a remote cache's additions and deletions, requesting immediate deletions and sending hints about web objects such as the third party locations of cacheable objects or unavailability of web objects. </p>