MISS means the ressouce is not found in the cache btw, do you see any requests getting cahced / your caching-dir is filling or do you see 100% MISS? maybe: http://forum.nginx.org/read.php?11,163400,163695 do you use cache-control-headerrs? Posted at Nginx Forum: http://forum.nginx.org/read.php?2,241023,241024#msg-241024