E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness — the four quality dimensions that Google's human quality raters use to evaluate web pages. Experience refers to first-hand knowledge of the topic; Expertise to formal qualifications or deep subject knowledge; Authoritativeness to recognition by others in the field; and Trustworthiness to overall credibility and accuracy. E-E-A-T is particularly important for YMYL (Your Money or Your Life) content — medical, financial, legal, and safety topics where low-quality content could genuinely harm users.
Google's Search Quality Rater Guidelines — the manual that trains human evaluators — devote extensive attention to E-E-A-T as the framework for assessing content quality. While E-E-A-T signals do not map directly to specific algorithmic ranking factors, they reflect what Google's algorithms are trying to detect: whether content comes from people with genuine knowledge and real-world experience of the topic they are writing about.
How to demonstrate E-E-A-T on your website
- Author credentials — display author names, professional qualifications, and credentials on all content pages
- About pages — comprehensive team and company information with verifiable qualifications
- External citations — cite credible sources (academic papers, official statistics, recognised publications)
- Backlinks from authoritative sources — third-party recognition is the strongest authoritativeness signal
- Reviews and testimonials — independently verified social proof from real customers
- Schema markup — Author, Person, Organization, and MedicalOrganization schemas for machine-readable credentials
- Regular updates — marking content as recently reviewed maintains the freshness and accuracy trust signal
E-E-A-T signals are particularly important for AEO and GEO — the practice of appearing in AI-generated search responses. AI tools like Google AI Overviews and Perplexity assess source credibility before citing content. Publisher authority (backlinks from recognised publications), author credentials (named experts with verifiable qualifications), and institutional recognition all influence whether AI systems treat a source as citable. E-E-A-T investment is therefore doubly valuable: it improves traditional SEO performance and AEO citation frequency simultaneously.
E-E-A-T standards are applied proportionally to the stakes of the topic. A recipe blog needs to demonstrate cooking knowledge; a medical information site needs to demonstrate clinical expertise. YMYL topics — health, finance, legal, safety — are evaluated against the highest E-E-A-T standards because errors have real consequences. Non-YMYL topics like hobbies, entertainment, and general information are evaluated less stringently. However, Google's Helpful Content system has raised E-E-A-T expectations across all content categories.