Every blogger and webmaster online wants more and more backlinks. Backlinks are still the primary driver of search engine rankings, and it does not look like that will change for sometime. However Google looks at more than just the number of links pointing a web page. The quality of those links matter. The quality of those links influences how much value those links pass. Just getting backlinks is not enough, you need quality backlinks. Here are three ways to evaluate the quality of a link:
Number of links on page
If the page from which you get the link contains hundreds of links then the quality of that link is questionable. The fewer the links on a page the better. In addition pages with a lot of links could be considered spammy and may get penalized
Page with penalty
This leads to the next point, which is that getting links from spammy or penalized pages cant hurt you. Google publicly played this down for several years, even though seo experts insisted that it was the case. With the release of Penguin and the disavow tool, it was confirmed.
Number of links to the page
The number and quality of links point to the page that linked to yours is also an indicator of link quality. The more links that point to page, the more authority that it can pass down to your link.
Look through your backlink profile and check the pages listed against some of these. Identify any bad links and then you can use the disavow tool to get them removed from your link profile.