gistfile1.txt

$ curl -I http://www.systemseed.com/user
HTTP/1.1 200 OK
Server: nginx
Date: Fri, 23 Mar 2012 14:18:02 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Vary: Accept-Encoding
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Last-Modified: Fri, 23 Mar 2012 14:18:01 +0000
Cache-Control: no-cache
ETag: "1332512281"
Content-Language: en
X-UA-Compatible: IE=Edge,chrome=1
X-Engine: Barracuda 1.0 ET
X-Device: normal
X-Speed-Cache: MISS
X-Speed-Cache-Key: /user
X-NoCache: Skip