Tiered link building focuses on creating strong Tier 1 links that point...

https://landensinsightfulperspectives.wpsuo.com/how-do-i-explain-tiered-link-building-to-a-client-without-jargon

Tiered link building focuses on creating strong Tier 1 links that point directly to your site. Then, you build Tier 2 links to support those Tier 1 links, making them more powerful and trustworthy