Domain Authority

How Domain Authority Works

Domain Authority (DA) is a logarithmic score from 0 to 100 created by Moz that estimates how likely a domain is to rank in Google search results. Ahrefs offers a similar metric called Domain Rating (DR). Neither is a direct Google ranking factor — Google does not use DA or DR internally. However, both metrics correlate strongly with rankings because they measure link quality and quantity, which are genuine Google ranking signals.

Why Domain Authority Matters for B2B Marketing

A DA score is primarily driven by the number of unique domains linking to your site (referring domains) and the quality of those linking domains. A single link from the New York Times (DA 95) is worth more than 100 links from low-authority blog directories. New sites typically start at DA 1–10; established B2B companies commonly have DA 30–60; major industry publications reach DA 70+; large media organizations top 90.

Domain Authority: Best Practices & Strategic Application

For B2B companies, understanding domain authority is important for three reasons. First, it helps set realistic ranking expectations — a DA 25 site cannot realistically rank for a keyword where all top-10 results have DA 60+. Second, it provides a benchmark for link building goals — understanding what authority level is required to compete for your most valuable target keywords tells you how many high-quality backlinks you need. Third, it affects the value of links you send to clients and receive from partners — internal links from a high-DA domain to a low-DA subdirectory pass meaningful link equity.

Agency Perspective: Domain Authority in Practice

Improving domain authority requires earning backlinks from high-authority, editorially legitimate domains. This means digital PR campaigns that secure placements in industry publications, content that earns natural links from citing your research, and strategic partnership content with vendors and complementary brands.