Hi guys! This question is almost OFF TOPIC but I think that probably you can help me sharing your experiences with me. We have a news portal behind a squid server. We have spent a lot of time setting cache headers on the application + configuring the squid server. Basically I'd like to know which headers would you set in order to cache a (very) dynamic page for 10 minutes. Seems that some cache servers won't store anything without the last-modified header, but it's almost impossible for me to build an accurate last-modified date. Basically I have this headers for cache: Cache-Control: public, max-age=300 Expires: Wed, 23 Sep 2009 14:49:19 GMT Could you tell me how would you set squid + headers for storing 10 minutes the content pages on any cache (without revalidation end-to-end if possible)? thanks in advance!