My Google Webmaster tools lists certain pages as having duplicate titles/descriptions . I will give you the list of these URLs and my current .htaccess file. You will get 2 lists: one will be duplicate title urls, and one will be duplicate descriptions. You will need to do a 301 redirect to the shorter URL within each duplicate set (at least 2 urls in each set). Most pages will probably repeat in the duplicate title and duplicate description lists, but some may be different. Example: 2 duplicate titles for URL A and B. Url A: this_is_a_url.html. Url B: this__is_a_url.html. Here, you'd need to redirect with a 301 response to the shorter Url A. This logic will need to apply to all URLs in the files.