E-E-A-T

Experience, Expertise, Authoritativeness, Trustworthiness. Formalised within Google’s Search Quality Rater Guidelines, with Experience added in December 2022 (Google, 2022). The criteria framework used by human raters to evaluate whether search results meet quality expectations. Difference from AVO: a human-rater evaluation framework, not an algorithmic measurement; AVO operationalises related signals through machine-measurable datapoints across V2.1, V2.2, and V3.2.