Area Rating (DR) is often a proprietary SEO metric by Ahrefs. It represents the energy of the web site’s backlink profile with a logarithmic scale from 0 to 100, with the latter getting the strongest. https://docs.google.com/forms/d/11SoXZbTlsSwHM_d9GU7eBIXYkq60BiX3MMIumPO59vM/viewform?edit_requested=true