Hi. I have read in the doc that squid default setup is using the old way to handle dynamic content: case A hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? cache deny QUERY And for the new way for this is using the next settings: case B refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 Some sites I had seen they use things like: case C refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern -i \.index.(html|htm)$ 1440 90% 40320 refresh_pattern -i \.(html|htm|css|js)$ 1440 90% 40320 refresh_pattern . 0 20% 4320 the old way in your experience is no longer the right way for this? What is the different between case B and case C? which is better? for dynamic content is the only settings we have?(I don't care about youtube or streaming). exist a formula to setup min/max percent? Any input will be appreciated, thanks!!! Squid 2.7.x