Yeah we didn't test this feature for some time :). I went through the link, but couldn't find a definite solution to this issue. And now as google/youtube are adding range fields along with other fields to the URL which are dynamic it makes caching almost impossible (unless as mentioned it requires smart coding to join parts). So as of now isn't there any way of caching Youtube videos? Thanks, Aditya On Tuesday, 8 April 2014 12:49 PM, babajaga <augustus_meyer@xxxxxxxx> wrote: Hi, you are a bit late to detect this issue :-) youtube changed this already some months ago. Actually I can not do further research, but also look here: http://squid-web-proxy-cache.1019090.n4.nabble.com/Do-we-have-an-algorithm-to-define-the-cachabillity-of-an-object-by-the-request-and-response-td4665473.html -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Caching-not-working-for-Youtube-videos-tp4665486p4665488.html Sent from the Squid - Users mailing list archive at Nabble.com.