Tiered link building organizes your backlinks into layers to boost SEO more...

https://isabellasbrilliantcolumn.lucialpiazzale.com/what-kind-of-content-earns-backlinks-fastest-how-to-vs-case-study-vs-infographic

Tiered link building organizes your backlinks into layers to boost SEO more efficiently. Tier 1 links point directly to your site to build strong, relevant authority