WHAT MAKES THE BEST BACKLINK?
Link building is an essential part of any successful SEO campaign; there’s no arguing about that. In order to rank for any given keyword, we need backlinks – and lots of them.

However, not all links are created equal.

The reason it’s important to know how valuable your links are is very simple: the higher the quality, the fewer links you need to get ranked.
#1. High PR of the domain
#2. Keyword-Rich Anchor Text
#3. Long-term Link
#4. Page is Indexed by Google
#5. Link Building Consistency
#6. No Bad-Neighborhood Links
#7. Active Sites
#8. Not Sidebar/Footer Links
#9. Relevancy is Overrated
#10. Authority Outbound Links

This article helps a lot for our work.Thanks