Tiered link building is all about creating a smart hierarchy to boost your...

https://wiki-legion.win/index.php/What_Does_Domain_Authority_Actually_Matter_for_Link_Building%3F

Tiered link building is all about creating a smart hierarchy to boost your domain authority. You focus on building high-quality Tier 1 links directly to your site and then use Tier 2 links to power up those pages