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

https://www.bookmark-zulu.win/tiered-link-building-helps-you-grow-your-website-s-authority-step-by-step

Tiered link building uses two levels of backlinks to boost your site’s authority. Tier 1 links point directly to your site from high-quality sources. Tier 2 links support those Tier 1 backlinks, helping them rank better and pass more value