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

https://www.bookmark-suggest.win/tiered-link-building-uses-two-levels-of-links-to-strengthen-your-website-s

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