Tiered link building uses two levels of backlinks to boost your site’s ranking....

https://www.foxtrot-bookmarks.win/tiered-link-building-is-a-strategy-that-helps-boost-your-site-s-ranking-by

Tiered link building uses two levels of backlinks to boost your site’s ranking. Tier 1 links point directly to your pages, driving real traffic and building authority. Tier 2 links support Tier 1 by linking to those backlinks, making them stronger