How to check the quality of back links ?

[SaraSanjay]

Back links should be from good page rank sites

[Alma C. Sanborn]

Originally Posted by SaraSanjay

Back links should be from good page rank sites

I think page rank is not much importance, as per recent update the page rank is now not a factor for ranking as well as for quality backlinks.
In most of the post below I have seen that discussion is going with on with DA, PA etc. But these are not the factors for quality backlinks but factors responsible for the quality of domain.
There are several factors which is essential to find the quality of backlinks, these factors are here:-
Relevancy is the most important for quality backlinks, so must take care that domain and content both should be relevant to your website.
The backlink would come from a high quality website, the domain must be trustworthy.
Add value to the pages by directing the visitors to resources related to your website topic or category, this is the way of getting traffic.
Use variations for linking any keyword to your website such as using long tail keyword, generic keyword and LSI.
The content used for linking should be high quality don't use any spamy or low quality content.
The backlinks to the authority website.
Get backlinks from different source to your existing backlinks.
To have a link to your site share a page with less than 10 other external links would be considered good.