Hi Squid-Users! I'm trying to change the refresh_pattern directives in order to be able to cache the following file: http://download.thinkbroadband.com/10MB.zip According to http://redbot.org/ cacheability engine, the file is cacheable: ****************************************************************************************************************************************************************** HTTP/1.1 200 OK Date: Sun, 14 Jul 2013 04:22:37 GMT Server: Apache Last-Modified: Mon, 02 Jun 2008 15:30:33 GMT ETag: "11f000a-a00000-44eb0ad25f840" Accept-Ranges: bytes Content-Length: 10485760 Access-Control-Allow-Origin: * Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Content-Type: application/zip General The server's clock is correct. The Content-Length header is correct. Caching The resource last changed 5 years 42 days ago. This response allows all caches to store it. This response allows a cache to assign its own freshness lifetime. Validation If-Modified-Since conditional requests are supported. If-None-Match conditional requests are supported. Partial Content A ranged request returned the correct partial content. ****************************************************************************************************************************************************************** But nevertheless, my squid store.log has the following entry for this file: 1373775292.264 RELEASE -1 FFFFFFFF 33A07BF3D72816A61CACF7753922BB3F 200 1373775276 1212420633 -1 application/zip 10485760/10485760 GET http://download.thinkbroadband.com/10MB.zip Which means it was not saved to cache! I tried different refresh_pattern such as: refresh_pattern . 43200000 100% 43200000 override-expire override-lastmod reload-into-ims ignore-reload ignore-no-cache ignore-private ignore-auth but could not get this file to be cached! I also have those directives in my squid.conf: minimum_object_size 16 KB maximum_object_size 512 MB Would you please help me by showing what needs to be changed in order to cache this file? Best regards, Firas