Domain Ranking (DR) can be a proprietary SEO metric by Ahrefs. It represents the toughness of the website’s backlink profile on the logarithmic scale from 0 to a hundred, with the latter getting the strongest. https://docs.google.com/forms/d/1_lB6nol-F-FYE7ZFQBzeW6cTPRWCA5F_TbKYhSp3aHA/viewform?edit_requested=true