Tiered link building helps improve your website’s authority by creating strong...

https://www.bookmarking-jet.win/tiered-link-building-uses-two-levels-of-backlinks-to-boost-your-site-s-2

Tiered link building helps improve your website’s authority by creating strong links in two layers. Tier 1 links point directly to your site, while Tier 2 links support those Tier 1 links to boost their power