Quick answer: E-A-T stands for expertise, authoritativeness and trustworthiness. It comes from Google’s Search Quality Evaluator Guidelines, the handbook human raters use to judge the quality of search results. It is not a single score or a setting you can switch on. It is a way of describing what Google’s ranking systems are trying to reward: content written by people who know the subject, published on sites with a good reputation, presented in a way that people can trust. It matters most for pages that affect health, money, safety or legal decisions.
E-A-T became a talking point for many site owners in 2018. Google updated its rater guidelines in the summer with more detail on the reputation of the people behind content, and a broad core update in August hit a lot of health, finance and wellness sites hard. Many of those owners went looking for a fix and found the phrase E-A-T everywhere. This guide explains what the term really means, where it fits, and what is worth doing about it.
Where E-A-T comes from
Google works with thousands of external quality raters. They do not change rankings directly. They look at sample search results, score them against a written set of guidelines, and that feedback helps Google check whether changes to its algorithms are producing better results.
The guidelines ask raters to assess page quality. A big part of that assessment is E-A-T:
- Expertise: does the person or organization creating the content know the topic? For a medical article, that might mean formal training. For a recipe or a hobby guide, real experience may be enough.
- Authoritativeness: is the creator, the content or the site recognized as a go-to source on the subject by others?
- Trustworthiness: can a visitor trust the page, the site and the people behind it to be accurate, honest and safe to deal with?
The important point is that raters are describing outcomes, not ticking boxes that feed a ranking formula. Google’s algorithms look at many signals that tend to line up with what a human would call expert, authoritative and trustworthy. Your job is to be those things in a way that is visible.
Why some sites feel E-A-T more than others
The guidelines use the term YMYL, short for “Your Money or Your Life.” These are pages that could affect a person’s health, financial stability, safety or happiness if the information is wrong. Examples include:
- Medical and health advice
- Financial advice, investing, taxes and insurance
- Legal information
- Pages where people buy things or enter payment details
- News and information on important public topics
For YMYL pages, the guidelines set a much higher bar. A thin article about a home remedy written by an anonymous author is a much bigger problem than a thin article about the best pizza toppings.
If your business is a clinic, a pharmacy, a financial advisor, a law firm or an online store, you are in YMYL territory for at least part of your site. If you publish recipes or travel tips, E-A-T still applies, but the standard of expertise is closer to “has this person actually done it?”
What E-A-T is not
A lot of advice published in 2018 overstated the idea. A few things to keep straight:
- There is no E-A-T score. You cannot check it in a tool, and no plugin can raise it.
- An author bio alone will not fix a weak page. Bios help readers and raters understand who wrote something, but they do not make shallow content deep.
- It is not a penalty. If rankings dropped after a core update, it usually means other pages were judged more helpful for those searches, not that your site was flagged.
- It is not only about links. Links from respected sites are one sign of authority, but reputation, accuracy and transparency matter too.
How to show expertise on your site
Start with who writes your content and how much they know.
Use real subject experts. If your articles are about tax planning, they should be written or reviewed by someone qualified to give that advice. Many businesses already have this expertise in-house. The gap is usually that the expert’s knowledge never makes it onto the website because a marketer wrote the copy alone.
Name the author and explain their background. Add a short byline and a bio that says what the person does, how long they have done it and any relevant qualifications. Link to an author page that lists their other articles.
Add a reviewer where it makes sense. For medical or financial content, “reviewed by” with a named professional and a review date tells readers the page was checked by someone accountable.
Write with depth. Answer the question fully, explain the reasons behind your advice and cover the cases where it does not apply. Expert content usually includes the caveats that a beginner would leave out.
Keep content current. Outdated advice on a YMYL topic is a trust problem. Put a review schedule on your most important pages and update dates only when you actually change something.
How to build authority
Authority is about how others see you, which makes it slower to build.
- Earn mentions and links from respected sources. Industry associations, local news, trade publications and partners are good starting points. Programs like HARO can help you get quoted by journalists when you have something useful to say.
- Publish things others want to cite. Clear explanations, original guides and practical checklists in your field attract links over time.
- Be consistent about your topic. A site that covers one area thoroughly tends to look more authoritative than one that publishes on everything.
- Show your work elsewhere. Speaking at events, contributing to industry sites and being active in professional groups all add to the record of who you are.
Pay attention to the anchor text and context of links you earn, too. A link from a relevant article says more about your authority than a link from an unrelated directory.
How to earn trust
Trust is the part most sites can improve this week.
Make it easy to see who runs the site. Have a clear About page, a physical address if you have one, a phone number and a working contact form. Hiding these details is a warning sign for raters and visitors alike.
Use HTTPS on every page. Any site that collects information should be secure, and browsers now label plain HTTP pages as not secure.
Publish the policies people expect. Shipping, returns, refunds, privacy and terms should be easy to find, especially on ecommerce sites.
Manage your reputation. Raters are told to search for reviews and news about a business. Look at what people find when they search your brand name. Respond to reviews, fix the problems they point to, and keep your Google My Business listing accurate.
Cite your sources. When you make factual claims on a YMYL topic, link to the research, regulator or official guidance you relied on. Accuracy is part of trust.
Avoid things that look careless. Broken pages, aggressive ads, pop-ups that block content and spelling mistakes on important pages all chip away at trust.
Auditing your site for E-A-T
You do not need special software. Work through your most important pages and ask:
- Who wrote this, and does the page say so?
- Would a real expert in this field agree with the advice?
- When was it last reviewed, and is anything out of date?
- Can a visitor find out who runs the site and how to contact them?
- What does a search for our brand name show about our reputation?
- Are there pages that are thin, duplicated or written only to rank?
For thin or low-value pages, you have three options: improve them, merge them into a stronger page, or remove them. A focused site with fewer, better pages often performs better than a large one full of filler. A broader SEO audit will pick up the technical issues at the same time.
What to do if a core update hurt you
If your traffic fell after the August 2018 update or a later core update, avoid panic changes. Look at which pages lost visibility and compare them with the pages that now rank. Ask honestly whether those pages are more complete, more current or written by people with clearer credentials. Then improve your content on those terms. Recovery, if it comes, often shows up after a later update rather than the next week.
FAQ
Is E-A-T a ranking factor?
Not as a single measurable factor. It describes the qualities Google’s systems try to reward, using many different signals.
Do small businesses need to worry about E-A-T?
Yes, especially if you give advice on health, money or legal issues, or sell online. The good news is that real experience, honest information and a clear identity are things small businesses often have already.
Do I need author bios on every page?
On articles and advice pages, yes, it helps. On service and product pages, clear business information and reviews usually matter more.
How long does it take to see results?
Building reputation takes months. Fixing obvious trust gaps, like missing contact details or outdated advice, can be done quickly, but rankings may not move until Google reassesses your site.
Keep the focus on the reader
E-A-T is easier to understand if you forget the acronym for a moment. Ask whether a careful reader would trust your page enough to act on it. If the answer is no, find out why and fix that. If you want a second set of eyes on your content and site trust signals, our search visibility work starts with exactly that kind of review.
