Tiered link building is about creating a controlled flow of authority to your...

https://wiki-zine.win/index.php/How_to_Find_High_Authority_Domains_in_Your_Niche_Without_Paying_for_Tools

Tiered link building is about creating a controlled flow of authority to your pages. I show you how to connect tier 1 links to your main content and then support those with tier 2 links to improve your efficiency