Utilities such as serpstat.com see the URLs example.com/topic/42/mytitle/1 and example.com/topic/42/mytitle/3 as two different pages with duplicate title meta tags. Is it possible to fix this without blocking all posts in the thread except the first one in robots.txt? How to get rid of this “ghosting duplication” Asking you guys here, because Google says title duplication is harmful for SEO.