Here is a HTTP WEB Sniffer for you. This is developed by CCViD. Using the web-sniffer application, you can trace the HTTP Response Headers, Cookie, HTML source code, and other header information easily.
The sniffer's link ishttp://www.ccvid.com/apps/web-sniffer/
Also, you can submit the Post string to the sites to check about the return headers. Also the site supports HEAD request too. You can change your user-agent string manually, of you can set a custom referer yourself. The site has all supports you need.
A sample http response from web-sniffer will look like the below image.
If you want to put your site's review here, just let me know by commenting on any posting of my article. I'll upload a review about your site at my blog.
Thanks to all.
Thursday, April 9, 2009