Tiered link building helps boost your website’s authority by creating two...

https://andressbrilliantperspectives.huicopper.com/what-should-i-say-in-a-broken-link-outreach-email-to-get-a-yes

Tiered link building helps boost your website’s authority by creating two levels of backlinks. Tier 1 links point directly to your site, while Tier 2 links support those Tier 1 links