Google SEO - ASP.NET 2 + url rewriting
 

I have read interesting post about doing project in ASP.net and doing URL rewrite on Windows Server, doing url rewrites in ASP .NET 2 can sometimes generate an HTTP status code of 302 instead of a 200. This issue isn’t specific to Googlebot (it would impact any search engine bot).

You can check more details at:-
http://communityserver.org/forums/53...howThread.aspx.

It has big risk (ASP.NET 2 + url rewriting generates a 302 instead of a 200), your site may drop out of most search engines. to debug this, Fiddler is one handy tool for Windows. For Firefox, you might use the Live HTTP Headers extension to see the actual request your browser sent, and the raw reply from a web server.

I will ask you to check more at:-
http://www.mattcutts.com/blog/asp-ne...times-harmful/