http://toolbar.netcraft.com/site_report?url=http://www.bing.com
Sample microsoft.com HTTP Response Header:
Cache-Control: public Content-Type: text/html; charset=utf-8Content-Encoding: gzip Expires: Thu, 04 Jun 2009 16:56:47 GMT Last-Modified: Thu, 04 Jun 2009 15:24:31 GMT Vary: Accept-Encoding Server: Microsoft-IIS/7.0 X-AspNet-Version: 2.0.50727 X-Powered-By: ASP.NET Date: Thu, 04 Jun 2009 16:46:47 GMT Content-Length: 20017
Sample bing.com HTTP Response Header:
Cache-Control: private, max-age=0 Content-Type: text/html; charset=utf-8 Vary: Accept-Encoding Content-Encoding: gzip Date: Thu, 04 Jun 2009 16:49:51 GMT Content-Length: 9295 Connection: keep-alive