Thanks, Amos. I don't understand why their implementation is many times faster than mine unless my Squid is horribly (mis)configured. Is there anything in this config that would slow down Squid? http_port 3128 refresh_pattern http://.*\.adobe\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://.*\.windowsupdate\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://office\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://windowsupdate\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://w?xpsp[0-9]\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://w2ksp[0-9]\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://download\.microsoft\.com/ 0 80% 20160 reload-into-ims refresh_pattern http://download\.macromedia\.com/ 0 80% 20160 reload-into-ims refresh_pattern -i \.flv$ 10080 90% 999999 ignore-no-cache override-expire ignore-private refresh_pattern -i \.index.(html|htm)$ 0 40% 10080 refresh_pattern -i \.(html|htm|css|js)$ 1440 40% 40320 refresh_pattern -i \.(gif|png|jpg|jpeg|ico)$ 10080 90% 43200 override-expire ignore-no-cache ignore-no-store ignore-private refresh_pattern -i \.(iso|avi|wav|mp3|mp4|mpeg|swf|x-flv)$ 43200 90% 432000 override-expire ignore-no-cache ignore-no-store ignore-private refresh_pattern -i \.(deb|rpm|exe|zip|tar|tgz|ram|rar|bin|ppt|doc|tiff)$ 10080 90% 43200 override-expire ignore-no-cache ignore-no-store ignore-private refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern ^ftp: 144000 20% 1008000 refresh_pattern -i \.index.(html|htm)$ 1440 90% 40320 refresh_pattern -i \.(html|htm|css|js)$ 1440 90% 40320 refresh_pattern (/cgi-bin/|\?) 0 0% 0 acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 acl schoolip src 10.0.0.1 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost http_access allow schoolip http_access allow test #http_access allow all cache_mem 3994 MB maximum_object_size 65536 KB maximum_object_size_in_memory 64 KB memory_replacement_policy heap GDSF cache_replacement_policy heap LFUDA cache_dir aufs /var/spool/squid3 16384 32 512 half_closed_clients off coredump_dir /var/spool/squid3 half_closed_clients off cache_store_log none cache_access_log none logfile_rotate 3 ipcache_size 16384 ipcache_low 98 ipcache_high 99 log_fqdn off half_closed_clients off reload_into_ims on cache_mgr help@my_domain_name.org visible_hostname gw.my_domain_name.org httpd_suppress_version_string off