How to know which links are of low quality?

[jonathan brown]

Hi,

You can follow these point to check it is good or low-quality back-link:

-MozRank
-Domain Authority (DA)
-Page Authority(PA)
-Google index status
-check Do follow and No follow
-Spam score
-Content(Unique, readable and strong)
-page rank
-alexa rank
-Related link