We have received a lot of backlinks over the years by users putting links on their websites to their home pages on our site, eg: our.domain/user1 our.domain/user2 … our.domain/user100000 There are 10’s of thousands of these backlinks, all natural, but many of them come from blogs that are completely outside of our niche. Only a small percentage of our backlinks 1% to 5% could actually be coming from pages related to our niche, the other 95%+ could be users just linking to their home pages. Could this really hurt us..? We have 1000’s of backlinks related to our niche, yet we’ve noticed that some competitors with less than 50 backlinks can outrank us for certain keywords.. Also related, we’ve noticed these user links popping up on a lot of spammy sites, directories, etc. We didn’t create them but we’re disavowing them now to be safe. So this could also be hitting our rankings.