Why a DR 40 Niche Blog Often Beats a DR 60 Irrelevant Directory: A Practical Q&A on Link Quality, Spam Score, and Smart Outreach
https://technivorz.com/links-outreach-agency-how-to-choose-the-right-partner-for-quality-2/
6 Critical Questions About Link Value, Spam Score, and Agency Promises Every Site Owner Should Ask If your agency sells links by Domain Rating and volume, you need a sharper filter