Tiered link building boosts authority by using tier 1 links to point at your...

https://wiki-neon.win/index.php/Is_Facebook_Sharing_Useful_for_SEO_Link_Building_Campaigns%3F

Tiered link building boosts authority by using tier 1 links to point at your site and tier 2 links to support them. I use Ahrefs to map these flows and ensure every backlink helps your rankings