Hi, >From squid.conf, refresh_pattern . 21600 100% 21600 override-expire That is, a cached page is fresh if its age in cache < 15 days (21600=15*24*60). I noticed that sending HTTP requests to pages older than 30 days result in TCP_REFRESH_MISS while requests for pages cached in the last 30 days either result in TCP_HIT or TCP_MISS. Since the min time for refresh_pattern is 15days, shouldn't it be like pages older than 15days should be validated against the parent (REFRESH_MISS/REFRESH_HIT) while all other pages are either TCP_HIT or TCP_MISS. How did the limit change from 15 to 30? Has anybody else seen such an anamoly? Also, if there's no refresh_pattern matching a URI, how would Squid process that HTTP request? Would it get a fresh copy from the parent or will it return the cached copy? Thanks. CONFIDENTIALITY NOTICE ======================= This email message and any attachments are for the exclusive use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message along with any attachments, from your computer system. If you are the intended recipient, please be advised that the content of this message is subject to access, review and disclosure by the sender's Email System Administrator.