Tiered link building helps you build a strong backlink profile by layering...

https://wakelet.com/wake/wwUuOxdzjbWfOWfGRSIHW

Tiered link building helps you build a strong backlink profile by layering links. Tier 1 are your main backlinks pointing directly to your site. Tier 2 links support Tier 1 by linking to those first-tier pages