E-E-A-T in SEO: What It Means, Each Letter Explained and How to Apply It
E-E-A-T (often typed as "EEAT") is an acronym for four qualities: Experience, Expertise, Authoritativeness and Trustworthiness. Google's quality raters use them to assess pages under the Search Quality Rater Guidelines. It is not a ranking formula or a number in any dashboard: Google says plainly that E-E-A-T itself is not a specific ranking factor, but its systems use a mix of signals to identify content that shows these qualities (Google's guidance on helpful content).
Where the term E-E-A-T comes from
The term comes from Google's Search Quality Rater Guidelines. Quality raters are people who, on Google's behalf, assess pages from search results following one shared handbook. Their ratings do not change the rankings of individual sites directly: Google uses them to check how well its algorithms are working.
For years the guidelines used the acronym E-A-T — expertise, authoritativeness, trustworthiness. In December 2022 Google added another E, for Experience, and announced it on the Search Central blog ("E-A-T gets an extra E for Experience"). Google's helpful content guidance also stresses that of the four, trust is the most important, and the others feed into it.
What lies behind the letters
| Criterion | Question it answers |
|---|---|
| Experience | Did the author do this themselves or are they recounting? |
| Expertise | Do they understand the topic at a professional level? |
| Authority | Is this recognized by others? |
| Trustworthiness | Can the site be trusted: contacts, transparency, security |
E-E-A-T letter by letter, with examples
Experience
Does the author have first-hand experience of the topic: have they used the product, visited the place, done what they recommend? Example: a router review with the author's own speed measurements around the flat and screenshots of the settings, versus a rewrite of the manufacturer's spec sheet.
Expertise
Does the author have the knowledge and skills the topic needs? For an article about medication that means relevant training and practice; for a DNS setup guide, hands-on admin experience. Expertise does not always mean a degree: deep practical knowledge is enough for a review of hiking gear.
Authoritativeness
Do others recognise the author or site as a go-to source: do they link to it, quote it, mention it in specialist publications? Example: a manufacturer's official site is authoritative on its own products, a tax authority on tax rules.
Trustworthiness
Can the page be trusted: are the facts accurate, is it clear who runs the site and how to contact them, are payments and personal data handled securely? This is the central quality: a page with inaccurate information will not be high quality, however experienced or well known its author.
Why this is especially important in certain niches
For topics affecting health, money, and safety, the bar is higher: the cost of error is significant. For other niches, the requirements are softer, but the principle remains the same — the material must be written by someone knowledgeable in the field.
YMYL: topics where the E-E-A-T bar is higher
YMYL stands for Your Money or Your Life. Google uses it for topics that could significantly affect people's health, financial stability or safety, or the welfare of society. Its documentation says that for such topics Google's systems give more weight to signals that align with E-E-A-T.
| Area | Example pages |
|---|---|
| Health and safety | Symptoms and treatments, medication and dosages, instructions for electrical or gas work |
| Finance | Loans, taxes, investing, insurance, online payments |
| Society | News about major events, information on elections and public services |
A review of a coffee shop is not YMYL, and personal experience is enough there. An article on medication dosage is YMYL: without a qualified author and links to primary sources it loses out to pages that have them.
What can be done
- Sign materials with real authors and indicate their experience.
- Provide original data and examples instead of recounting others' articles.
- Reference primary sources where facts are asserted.
- Keep company, contact, and policy pages organized.
- Ensure website security: a hacked site loses trust instantly — see Shield.
What should not be done
- Fictitious authors. A made-up expert with a stock photo does not add trust, and when exposed, it takes away everything.
- Unverified credentials. “Leading industry specialist” without a single reference is meaningless.
- Copying others' materials. Recounting a competitor's article is not experience.
- Reviews that never existed. Fabricated reviews and cases are a direct path to losing trust and facing penalties.
What E-E-A-T is not
- Not a Google score or metric. There is no "E-E-A-T score" in Search Console or any other Google product. If a third-party tool shows one, it is that tool's own heuristic, not search data.
- Not a specific ranking factor. Google's documentation says so directly: its systems rely on a mix of signals that help identify content with experience, expertise, authoritativeness and trustworthiness.
- Not a rating of your site by raters. Quality raters do not promote or demote individual sites — their ratings are used to evaluate algorithms.
- Not markup. Structured data about the author or organisation helps search engines understand who is behind a page, but it does not add experience or trust by itself. If the named author does not exist, markup will not fix that.
- Not an "About the author" box for its own sake. An author page helps when it carries verifiable facts: experience, publications, profiles where the person can be found.
E-E-A-T checklist for a page
A handy way through it is the three questions Google suggests asking about your content: who created it, how it was created, and why.
- Who. The content has a byline where readers would expect one, and the byline leads to background about the author. Google specifically warns that made-up creators — invented names or AI-generated headshots — are deceptive.
- Who. The site has an About page with real details: company name, where it operates, contact information.
- How. It is clear where the data comes from: your own measurements, tests, sources. If automation or AI was involved and readers would reasonably wonder about it, that is disclosed.
- How. Facts are backed by links to primary sources, figures by a description of how they were calculated.
- Why. The page exists to help people get something done, not just to attract search traffic.
- Trust. The site runs on HTTPS with a valid certificate — the SSL checker confirms it; it has no malware or signs of a hack — the website security scanner gives an outside view.
- Trust. Reviews are genuine; privacy, payment, shipping and returns policies (for shops) are easy to find and understand.
- Freshness. YMYL pages show when they were last updated, and outdated information is corrected.
You can check author and organisation markup with the schema markup validator; the step-by-step process is in how to validate schema markup. If you suspect a text reads like a rewrite, compare it with the primary sources and add what they lack: your own experience and data.
Our example
In this knowledge base, we publish our own measurements with denominators and separately describe the methodology — this is an attempt to comply with the framework in practice: “Where the numbers in this knowledge base come from”.