E-E-A-T
E-E-A-T stands for Experience, Expertise, Authoritativeness and Trustworthiness, and denotes the framework of criteria Google uses in its guidelines for search quality raters to describe content quality; E-E-A-T is not a ranking factor in its own right. Human raters apply it to content and to the credibility of the people who produced it, while Google's systems do not measure an E-E-A-T score.
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.