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

https://www.protopage.com/michelle-mitchell2#Bookmarks

Tiered link building uses two levels of links to boost your site’s SEO. Tier 1 links point directly to your main pages and carry the most weight. Tier 2 links support Tier 1 by linking to those first-level pages