Google Product Forums
Re: Google Crawling concatenating links, creating non existent ones
cristina Feb 10, 2009 7:27 AM
Posted in group: Webmaster Central

Categories: Crawling, indexing & ranking :

Hi Steve,
Your site returns status response 200 (OK) for non-existent URLs that do not end in .aspx

You have to set your site to return HTTP status 404 (Not Found)
for all non-existent URLs.

Cristina.