A typical HTTP response from a web server begins like this:
HTTP/1.0 200 OK
Server: Netscape-Enterprise/2.01
Date: Sat, 02 Aug 1997 07:52:46 GMT
Accept-ranges: bytes
Last-modified: Tue, 29 Jul 1997 15:06:46 GMT
Content-length: 2810
Content-type: text/html