Tiered link building uses two levels to boost your site’s ranking. Tier 1 links...

https://fun-wiki.win/index.php/What%E2%80%99s_a_Realistic_Tiered_Link_Building_Plan_for_a_New_Site%3F

Tiered link building uses two levels to boost your site’s ranking. Tier 1 links point directly to your site and have the most impact. Tier 2 links support those Tier 1 links by linking to them, making the overall link profile stronger and more natural