Hello Amos, I am trying to cache file .exe from Google but it seems no cacheable! I already tried to customize its cdn and did it successfully ! . The bad thing is when I looked at its header I found that it is not cachable . http://redbot.org/?uri=http%3A%2F%2Fdl.google.com%2Ftag%2Fs%2Fappguid%253D%257B74AF07D8-FB8F-4d51-8AC7-927721D56EBB%257D%2526iid%253D%257BBE1E0610-0F00-E4AD-7AA2-E3CE722A10A2%257D%2526lang%253Den%2526browser%253D2%2526usagestats%253D0%2526appname%253DGoogle%252520Earth%2526needsadmin%253DTrue%2526brand%253DGGGE%2Fearth%2Fclient%2FGoogleEarthSetup.exe HTTP/1.1 200 OK Last-Modified: Thu, 25 Aug 2011 23:00:00 GMT Accept-Ranges: bytes Content-Length: 604488 Content-Type: application/x-msdos-program ETag: 24829 Vary: * Date: Mon, 12 Sep 2011 15:06:54 GMT Server: downloads Is there an ignore option for that [ Vary : * ] ? Thank you Regards, Ghassan