Hi, Sometimes I see squid is taking time in delivering contents even if object is available in its cache. Any idea what could be the reason? I used external url rewrite program to strip the query string. Is it slowing down serving process ? First 2 line shows squid took 703 milliseconds to deliver the contents and rest of the url shows 0 milliseconds 1225272393.185 703 81.52.249.107 TCP_MEM_HIT/200 1547 GET http://s2.xyz.com/1699/563/i0.js?z=5002 - NONE/- application/x-javascript 1225272393.185 703 168.143.241.52 TCP_MEM_HIT/200 2230 GET http://s5.xyz.com/496/111/109/i30.js?z=6718 - NONE/- application/x-javascript 1225272393.375 0 81.52.249.100 TCP_MEM_HIT/200 1418 GET http://s2.xyz.com/371/9/i10.js?z=148 - NONE/- application/x-javascript 1225272393.375 0 168.143.241.12 TCP_MEM_HIT/200 1361 GET http://s5.xyz.com/670/28/i6.js?z=5812 - NONE/- application/x-javascript 1225272393.381 0 81.52.249.101 TCP_MEM_HIT/200 1288 GET http://s1.xyz.com/558/622/9/i0.js?z=4158 - NONE/- application/x-javascript Following is rewrite url helper program I use which was sent by Henrik and I have modified it bit to strip the query string. #!/usr/bin/perl -an BEGIN { $|=1; } $id = $F[0]; $id =~ s/\?.*//; print "$id\n"; next; Regards Nitesh