Tiered link building uses two levels: Tier 1 links point directly to your site,...

https://bizzmarkblog.com/what-anchor-text-should-i-use-for-tier-2-links-pointing-to-tier-1/

Tiered link building uses two levels: Tier 1 links point directly to your site, boosting authority right away. Tier 2 links support Tier 1 by linking to those pages, making them stronger and more credible