Domain Authority

Domain Authority (DA) is a predictive ranking score created by Moz to estimate how well a website is likely to perform in search engine results pages (SERPs). The score ranges from 1 to 100, with higher numbers representing stronger ranking potential. DA is calculated using multiple signals such as the number of linking root domains, the total volume and quality of backlinks, MozRank, MozTrust, and other proprietary factors.

Although Domain Authority is not a direct Google ranking factor, it has a strong correlation with search performance and is widely used by SEO specialists to benchmark site authority. In the context of GEO and AI-powered search, DA becomes increasingly important since AI systems weigh source credibility when determining which content to reference. Websites with higher DA are generally perceived as more authoritative and trustworthy, boosting their chances of being cited in AI-generated responses.

Building Domain Authority involves long-term SEO and credibility-building efforts, including producing high-quality, authoritative content, earning backlinks from trusted websites, maintaining strong technical SEO, enhancing user experience, and consistently publishing valuable resources. DA should be evaluated alongside other indicators such as Ahrefs’ Domain Rating, topical authority in specific subject areas, and Google’s E-E-A-T signals to provide a complete picture of authority and trustworthiness.