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

https://www.bookmarks4all.win/learn-how-tiered-link-building-works-by-creating-strong-relevant-tier-1-links

Tiered link building uses two levels of backlinks to boost your site’s authority. Tier 1 links point directly to your site for strong, high-quality signals. Tier 2 links support those Tier 1 links, helping them rank better and stay powerful longer