Try the tool that makes such in-depth research possible.

The SEO Blog from cognitiveSEO

Cutting-Edge Digital Marketing Research
Follow Us and Get Notified on the Latest Digital Marketing Strategy Insights.
You may never know when you are going to stumble on an unnatural links penalty, whether it’s algorithmic or manual. And you’re going to have to deal with that problem one way or the other. When you’re trying to get rid of those harmful backlink profiles, one solution that prevailed is to remove the page from your site to which the unnatural links were pointing. You’re going to swiftly deal with the problem, but you’re going to remain with a page that will give the 404 message. Will [...]
At cognitiveSEO, "our customer is our master" is not just a saying but a way of action. We've listened closely to the feedback gave by our users, we've analyzed, we've worked ... and ... we've worked some more, and in the end we put a new update all together. From  all the reviews and the interactions with our customers, we concluded that the Anchor Text Distribution and Classifier is highly appreciated but it should be a bit more user-friendly and easier to understand. So we took all the great [...]
After our unnatural link detection launch last week, a lot of people asked if they should disavow NO-FOLLOW links. The short answer is that there is no exact answer on this. There are 2 major, contradictory, opinions on this: No. You shouldn’t disavow No-follow links, as Google says it doesn’t pass any ranking juice to them. [GOOGLE APPROVED] Yes. You should disavow No-follow links as they might be created using unnatural methods and they could add up in the unnatural link mix. [...]