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

https://lima-wiki.win/index.php/How_Do_I_Build_Tier_2_Content_That_Looks_Natural_and_Not_Forced%3F

Tiered link building uses two levels of backlinks to boost your site’s authority. Tier 1 links point directly to your site and carry the most value. Tier 2 links support Tier 1 by linking to those pages, making them stronger