Hello, I checked on my Google webmaster tool sitemap today and found some duplicate title tags. The reason is that I changed the seo friendly URLs a few months ago and now both new and old URLs are indexed, which show duplicate title tags and description tags. For example: /dating/united-states/ (old) /online-dating/united-states/ (new) They both have the same title and description tags. Do you think the old urls (/dating/united-states/) will automatically deindex in the next few months? If not, Should I DISALLOW /dating/ from my robots.txt file to deindex it from Google? Thanks very much!