Tiered link building helps boost your website’s SEO by creating two levels of...

https://sierra-wiki.win/index.php/How_Do_I_Keep_Tiered_Link_Building_from_Turning_into_a_Link_Pyramid_Scheme%3F

Tiered link building helps boost your website’s SEO by creating two levels of backlinks. Tier 1 links point directly to your main site, driving quality traffic and authority