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

https://wiki-quicky.win/index.php/How_Do_I_Clean_Up_a_Messy_Backlink_Profile_from_Old_Campaigns%3F

Tiered link building uses two levels of links to boost your site’s SEO. Tier 1 links point directly to your site, giving it strong, high-quality signals. Tier 2 links support those Tier 1 links, increasing their power and helping your SEO grow naturally