E-E-A-T
E-E-A-T stands for Experience, Expertise, Authoritativeness and Trustworthiness, and describes the criteria Google uses to assess the quality of content and the credibility of the people who produced it.
In practice
E-E-A-T is not a single ranking factor but an assessment framework from Google's guidelines for search quality raters. Websites strengthen it through transparent author profiles, verifiable sources, real examples from practice and consistent company details. For AI-driven search systems in particular, perceptible trustworthiness helps decide whether a source gets cited at all.