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

https://jaspersexpertinsight.iamarrows.com/do-i-really-need-tier-3-links-or-should-i-stop-at-tier-2

Tiered link building uses two levels of backlinks to boost your website’s ranking. Tier 1 links point directly to your site for strong authority. Tier 2 links support Tier 1 by linking to those pages, making the whole structure more powerful