Definition
What this term means
A quality framework standing for Experience, Expertise, Authoritativeness, and Trustworthiness, originally defined by Google for search quality evaluation, now increasingly relevant to AI-generated content curation. E-E-A-T is not a single metric but a collection of signals: first-hand experience with a topic, demonstrated professional expertise, recognised authority within a field, and overall trustworthiness of both the content and the publisher.
Why it matters
The business impact
Both search engines and AI systems use E-E-A-T signals to evaluate content quality and determine which sources deserve to be cited. For 'Your Money or Your Life' topics (health, finance, legal, safety), E-E-A-T is especially critical. Brands that invest in demonstrable expertise (author credentials, case studies, original research) and trust (security, transparency, reviews) earn preferential treatment in AI-generated responses.
Used in context
How you might use this term
“A health supplement brand struggled with AI visibility because their content lacked E-E-A-T signals. After adding medically-reviewed labels, qualified author bios, clinical study citations, and implementing trust-related schema markup, they saw a dramatic improvement in how AI assistants described and recommended their products.”
Related terms
Explore connected concepts
Authority Signals
The collective evidence that demonstrates a brand's credibility, expertise, and trustworthiness to AI systems and search engines. Authority signals include expert authorship with verifiable credentials, citations from reputable sources, industry awards, professional certifications, longevity of domain, quality of backlink profile, and consistent representation across authoritative platforms such as Wikipedia, industry publications, and government databases.
Model Citation
An instance where an AI model references, quotes, or links to a specific source when generating its response. Model citations can appear as inline references, linked source lists, or attributed quotes, and they represent the AI equivalent of earning a backlink in traditional SEO. Platforms like Perplexity and Google's AI Overviews prominently display citations.
Topical Authority
The perceived depth of expertise that a website or brand demonstrates on a specific subject area. Topical authority is built by comprehensively covering a topic across multiple pieces of interlinked content, demonstrating to both search engines and AI systems that you are a definitive, go-to source for that subject. It goes beyond publishing a single article to creating a body of work that covers a topic from every relevant angle.