Tiered link building helps boost your site’s authority by creating two levels...

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

Tiered link building helps boost your site’s authority by creating two levels of backlinks. Tier 1 links point directly to your website from quality sources, while Tier 2 links support those Tier 1 links, making them stronger