Tiered link building helps you focus your authority where it matters most. By...

https://www.scribd.com/document/1032066985/Why-Are-My-Rankings-Not-Moving-After-Building-Backlinks-A-Troubleshooting-Guide-163537

Tiered link building helps you focus your authority where it matters most. By pointing high-quality Tier 1 links directly to your site and supporting them with Tier 2 links, you maximize your backlink equity