Squid Proxy Configuration

Description
Persistent connection support for clients and servers. By default, Squid uses persistent connections (when allowed) with its clients and servers. You can use these options to disable persistent connections with clients and/or server.

Related information :

If the browser is talking to web server directly, socket can be closed after it is done using keep-alive directive in apache configuration file. The same thing can be done in Squid using these directives client_persistent_connections and server_persistent_connections.