On Tue, Jul 22, 2008 at 01:22:53PM +0900, KwangYul Seo wrote: > It seems that squid never caches the URL with parameters. For > example, every time a browser accesses > http://www.naver.com/css/www.css?20080722, a cache miss occurs in > squid. > > However, the server response header indicates that this CSS can be > cached. You're probably using the (old) default squid.conf which includes something along the lines of: acl QUERY urlpath_regex cgi-bin \? cache deny QUERY This says that any URL that contains the string "cgi-bin" or "?" cannot be cached. These are now deprecated, and you should remove these and replace them with refresh_patterns instead (since they only apply to content which doesn't have explicit expiry information): refresh_pattern (cgi-bin|\?) 0 0% 0