| % w3m -dump_head http://www.example.com/
| HTTP/1.1 200 OK
| Server: Microsoft-IIS/4.0
| Content-Location: http://www.example.com/index.htm
| Date: Tue, 30 Jul 2002 15:29:36 GMT
| Content-Type: text/html
| Accept-Ranges: bytes
| Last-Modified: Mon, 15 Jul 2002 02:27:42 GMT
| ETag: “40857732a72bc21:19a7”
| Content-Length: 7586