Domain Rating (DR) is a proprietary metric developed by Ahrefs that measures the overall strength of a website's backlink profile on a logarithmic scale from 0 to 100, where higher scores indicate a stronger and more authoritative link profile.
DR is calculated based on the number and quality of unique domains linking to a given website, as well as the DR scores of those linking domains themselves. Because the scale is logarithmic, moving from a DR of 70 to 80 requires significantly more link equity than moving from 10 to 20. This means that the metric becomes increasingly competitive at the higher end of the range.
It is important to understand that Domain Rating is a third-party metric created and maintained by Ahrefs. It is not a signal used by Google in its ranking algorithm, and it should not be confused with PageRank, which is Google's own internal measure of page-level authority. DR is an approximation of backlink strength based on Ahrefs' own web crawl data, and its accuracy depends on the scope and freshness of that index.
DR is often compared to similar metrics from other SEO tools, most notably Domain Authority (DA), which is the equivalent score offered by Moz. While both metrics attempt to quantify the authority of an entire domain based on its inbound links, they are calculated differently and will often produce different scores for the same website. Neither should be treated as a definitive measure of ranking potential, but both serve as useful relative benchmarks when evaluating sites side by side.
In practice, DR is widely used in SEO workflows for link prospecting, competitive analysis, and evaluating the value of potential link placements. When assessing whether a website is worth pursuing for a backlink, a higher DR generally suggests that a link from that domain carries more weight in terms of third-party authority signals. However, relevance, traffic, and editorial quality of the linking page remain equally important considerations that a single numerical score cannot fully capture.
Because DR reflects the entire domain's backlink profile rather than any individual page, it is a domain-level metric. For page-level link strength, Ahrefs offers a separate metric called URL Rating (UR), which functions similarly but is scoped to a single URL rather than the whole site.
When using DR as part of an SEO strategy, it is worth remembering that the metric can be influenced by link schemes and artificially inflated through low-quality link building. A high DR does not guarantee organic traffic or genuine topical authority, so it is most reliable when interpreted alongside other data points such as organic traffic estimates and referring domain diversity.