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

https://wiki-square.win/index.php/Do_I_Need_to_Worry_About_Google_Penalties_with_Tiered_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