Hello Amos, Finally, I have almost captured the most YouTube Videos except something I want to get some asistance from you . As I have tested before and tried so many times .. Chudy's script is outdated. After testinig and logging Youtube Videos . I finally have found something not being fully cached . If you still remember I have said before with my old messages that ID isnt being captured in all places but its okay I have done this . I will post my details after I completelly finish them. Could you please explain to me whats happening here? If &range=13-2375679 was found in a URL then Squid doesnt understand how to cache the full video .. as it only cache the first 13 seconds I guess! and then it stops . If I try to download this finished cached movie then you notice its size about 2.2 MB . You try to remove it from cache then Squid cant even find it as it claims not cached but shows TCP_HIT in access.log . STRANGE! Now look into this URL: ------------------------------- "http://o-o.preferred.orange-par1.v4.lscache7.c.youtube.com/videoplayback?sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Csource%2Calgorithm%2Cburst%2Cfactor%2Ccp&fexp=907605%2C912600%2C915002&algorithm=throttle-factor&itag=34&ip=84.0.0.0&burst=40&sver=3&signature=8223490C23E48CB708E04666E4 A550422757CEC6.9D8D78E66DD14FEFC4B5F960F493ED4CDFD7C51C&source=youtube&expire=13 22348400&key=yt1&ipbits=8&factor=1.25&cp=U0hRR1NPVl9FSkNOMV9LSVpFOkpsV3BkS1B1ZXN F&id=e120643085f56831&range=13-2375679" HTTP/1.0 200 OK Last-Modified: Fri, 27 Nov 2009 12:44:54 GMT Content-Type: video/x-flv Date: Sat, 26 Nov 2011 16:06:29 GMT Expires: Sat, 26 Nov 2011 16:06:29 GMT Cache-Control: private, max-age=24511 Accept-Ranges: bytes Content-Length: 2375667 X-Content-Type-Options: nosniff Server: gvs 1.0 X-Cache: MISS from Peer6 X-Cache-Lookup: MISS from Peer6:3128 Connection: close Whats the job of "Accept_ranges: bytes" here? And the very confusion again you can see another similar URL with the same "/videoplayback?.*(id)" and here comes the ID inthe end of this URL then moves temporary just . I must mention that this URL sends the FLV url as Squid already read it in access.log and then it dds &ir=1&playretry=1 or pr=1&playretry which means Squid would be confused to cache it 2 times (FLV). EXAMPLE: --------------- "http://o-o.preferred.orange-par1.v3.lscache3.c.youtube.com/videoplayback?sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Csource%2Calgorithm%2Cburst%2Cfactor%2Ccp&fexp=908525%2C910207%2C916201&algorithm=throttle -factor&itag=34&ip=84.0.0.0&burst=40&sver=3&signature=0489805DCC95F6EADBA9D43C3F D8C107FC768662.73AA6897FE78CF78BE7819E089F1A4FC47534C7D&source=youtube&expire=13 22344800&key=yt1&ipbits=8&factor=1.25&cp=U0hRR1NPUl9FSkNOMV9LSVZJOmdmQWdwWC01dlp n&id=283246f338ece5ad" HTTP/1.0 302 Moved Temporarily Last-Modified: Wed, 02 May 2007 10:26:10 GMT Date: Sat, 26 Nov 2011 15:50:47 GMT Expires: Sat, 26 Nov 2011 15:50:47 GMT Cache-Control: private, max-age=900 Location: http://r9.orange-par2.c.youtube.com/videoplayback?sparams=id%2Cexpire% 2Cip%2Cipbits%2Citag%2Csource%2Calgorithm%2Cburst%2Cfactor%2Ccp&fexp=908525%2C91 0207%2C916201&algorithm=throttle-factor&itag=34&ip=84.0.0.0&burst=40&sver=3&sign ature=0489805DCC95F6EADBA9D43C3FD8C107FC768662.73AA6897FE78CF78BE7819E089F1A4FC4 7534C7D&source=youtube&expire=1322344800&key=yt1&ipbits=8&factor=1.25&cp=U0hRR1N PUl9FSkNOMV9LSVZJOmdmQWdwWC01dlpn&id=283246f338ece5ad&ir=1 X-Content-Type-Options: nosniff Content-Type: text/html Server: gvs 1.0 Age: 2068 Content-Length: 0 X-Cache: HIT from Peer6 X-Cache-Lookup: HIT from Peer6:3128 Connection: close NOTE that its "content-length=0" and Squid thinks that its a video ..If we could especially ignore or deny caching headers with 0 size!.In that case I will try to add &ir=1 &pr=1 to the script . My real question was focused on Accept-Ranges so If you could hand me over this one . Ghassan