Domain Authority
Domain Authority is a predictive metric on a 1-100 scale developed by Moz that estimates the likelihood of a website ranking in search results based on its backlink profile and linking domain quality. While not a direct Google ranking factor, Domain Authority serves as a useful benchmarking tool to compare competitive difficulty and predict ranking potential.
Definition
Domain Authority is calculated using machine learning analysis of hundreds of linking features and how those correlate with ranking position in search results. It predicts how well a domain will rank, accounting for factors like quantity and quality of backlinks, linking domain diversity, and anchor text. Domain Authority is domain-level, while Page Authority applies to individual pages. The metric helps identify competitive difficulty and track changes in a site's link profile over time.
Domain Authority should be understood as a comparative benchmarking tool, not an absolute ranking guarantee. A higher DA website tends to rank better than a lower DA website for competitive keywords, all else equal. However, DA does not directly influence Google's ranking algorithm; it is a Moz-calculated prediction. Domain Authority can be improved by earning backlinks from reputable sources, increasing content quality, and building brand authority.
Why it matters for AI visibility
AI systems assess source credibility using signals similar to domain authority: backlink profile, citation patterns, and mention frequency across authoritative sites. While Domain Authority itself is not an AI ranking factor, the underlying signals it measures (quality backlinks, site reputation, topical focus) directly influence whether AI systems trust your site as a source. Sites with strong backlink profiles and cross-domain citations are more likely to be selected by AI systems as authoritative references.
Related terms
Backlinks
Backlinks are hyperlinks from one website to another, serving as endorsements and signals of authority and relevance to search engines and AI systems. Quality backlinks from high-authority, topically relevant sites carry significantly more weight than quantity, and links with natural anchor text and editorial context signal trustworthiness more than unnatural patterns.
SEOTopical Authority
Topical Authority is a site's demonstrated expertise and comprehensiveness in a specific topic area, indicated by extensive content coverage across multiple angles, strategic internal linking between related pages, inbound links from authoritative sources, and brand recognition within that field. Sites with strong topical authority rank better for related keywords and are trusted by both search engines and AI systems.
SEOE-E-A-T
E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness, representing Google's framework for assessing content quality. It is not a direct ranking factor but a lens from Google's Search Quality Rater Guidelines, weighted most heavily for YMYL topics, with quality raters evaluating whether content demonstrates practical experience, demonstrated expertise, recognized authority within the field, and verifiable trustworthiness signals.
SEOBrand SERP
Brand SERP is the search engine results page displayed when users search your brand name, organization name, or branded keywords, typically showing your official website, social media profiles, official brand accounts, news mentions, and related brand properties. A strong brand SERP signals brand authority and protects brand reputation by controlling which information appears prominently.