Unnatural Back Links
Back Links which Google flags as unnatural (either algorithmically or via manual assessment) are prone to be:
- discounted
- not contribute towards rankings.
Multiple unnatural links might also lead to a :
- penalty
- a minimize in rankings/traffic.
You will find there's minimal blurring with the lines in what constitutes an unnatural connection, with a few arguing that any website link that's ‘crafted’ or (even by way of outreach) is intended to control search engine results and is also as a result unnatural.
For high quality backlink : https://bit.ly/2NApaCt