Reporting HTTP Accesses to the Remote Server

When a document is cached by Sun Java System Web Proxy Server, it can be accessed many times before it is refreshed again. For the remote server, sending one copy to the proxy that will cache it represents only one access, or “hit.” The Proxy Server can count how many times a given document is accessed from the proxy cache between up-to-date checks and then send that hit count back to the remote server in an additional HTTP request header (Cache-Info) the next time the document is refreshed. This way, if the remote server is configured to recognize this type of header, it receives a more accurate account of how many times a document is accessed.