Hello, On Tue, Oct 7, 2008 at 8:11 PM, Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx> wrote: > Best done by the origin server using the Vary header and Cache-Control: > max-age.. > It can't, since it will confuse my squid to cache the page for normal user. Is should not be cached for normal request. Robot don't need the most updated result, don't need personalized contents etc. I only want to cache, if and only if UA are robots. The squid will block the request and the robots will not hit my backend.