HTTP header is messages header of requests and responses in the Hypertext Transfer Protocol (HTTP).
The HTTP Headers of lexpr.ru
0: HTTP/1.1 200 OK
Date: Thu, 10 Oct 2013 16:57:04 GMT
Server: Apache
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Cache-Control: store, no-cache, must-revalidate, post-check=0, pre-check=0
Set-Cookie: SESS50ed00d6970728a7e6e0ef00d3d39c85=5840a680e4ab93337044c8f2ba950e17; expires=Sat, 02-Nov-2013 20:30:24 GMT; path=/; domain=.lexpr.ru
Last-Modified: Thu, 10 Oct 2013 16:57:04 GMT
Connection: close
Content-Type: text/html; charset=utf-8