Tiered link building is a reliable way to boost site authority without risking...

https://wiki-cafe.win/index.php/Are_Blog_Comment_Links_Still_Useful_for_Tier_2_Linking,_or_Just_Noise%3F

Tiered link building is a reliable way to boost site authority without risking your main domain. The strategy involves building high-quality tier 1 links to your pages, then supporting those with tier 2 links to pass extra authority