E-E-A-T on the Page: Author Bios, Sources and Trust Signals

A Stanford Persuasive Technology Lab study (2002) of 2,684 people judging live websites found that site design was the most frequently mentioned credibility factor, at 46.1 per cent of comments.

E-E-A-T stands for experience, expertise, authoritativeness and trust, and it is a way of judging content quality, not a score you can install with a plugin. What you can do is make the evidence of those qualities easy to see on the page: who wrote it, why they are qualified, what first-hand knowledge it contains, where the facts come from, and how a reader can reach you. This guide covers each of those signals, what makes them believable, and where to take extra care on health, money and legal topics.

What E-E-A-T is, and what it is not

The concept comes from Google’s Search Quality Rater Guidelines, a document used to train the people who evaluate search results. Raters look at pages and judge how well they meet the needs of searchers, and one of the things they consider is how much experience, expertise, authority and trust the page and its creator show. Google uses that feedback to assess whether its systems are producing good results.

That is the key distinction. Rater scores do not directly change the ranking of any individual page. Google has said its systems use a mix of signals that tend to line up with what people would recognise as experience, expertise and trust. So there is no “E-E-A-T score” to raise, and no single tag or box to tick.

Of the four, trust is the one Google describes as most important. Experience, expertise and authority all feed into whether a reader can trust what the page says. A page can be written by a genuine expert and still be untrustworthy if it hides who is behind it or makes claims it cannot support.

Here is a quick way to keep the four parts straight:

Part	The question it asks	How it shows up on a page
Experience	Has the creator actually done or used this?	Original photos, specific observations, details only someone hands-on would know
Expertise	Does the creator have the knowledge or skill for this topic?	Relevant qualifications, accurate and precise explanations, an author page that backs it up
Authoritativeness	Is the creator or site a recognised source for this topic?	A consistent focus on the subject, mentions and references from others, a clear identity
Trust	Is the page accurate, honest and safe to rely on?	Transparent ownership, sources, dates, contact details, policies, no misleading claims

Google publishes guidance on this under its helpful content documentation at developers.google.com/search, including a set of self-assessment questions. They are worth reading in full.

Bylines and author pages that say something

The simplest trust signal is a name. If a page gives advice and no one is willing to put their name on it, a reader has every reason to be cautious. Add a visible byline to articles and guides, and make that name link to an author page.

An author page should answer one question: why should I listen to this person on this subject? That means:

• Their real name and a real photo.
• Their role and what they actually do day to day.
• Relevant qualifications, registrations or memberships that a reader could verify.
• The topics they write about, and links to their articles on your site.
• Links to profiles elsewhere that confirm the same identity, such as a professional profile.

What weakens an author page is vagueness. “Sarah is a passionate writer who loves helping people” tells the reader nothing. “Sarah is a registered dietitian who has worked in hospital nutrition clinics” tells them exactly why her article on diabetic meal planning is worth reading.

If content is written by a generalist and checked by a specialist, say so. A “reviewed by” line naming the reviewer and their qualification is honest and useful, provided the review actually happened.

First-hand evidence: showing the experience

The extra “E” for experience matters because so much content online is assembled from other content. A page that shows its author has actually done the thing stands apart. Ways to show it:

• Original images. Your own photos of the product, the process, the site visit or the result, rather than stock images.
• Specific details. The problem you ran into, the step that took longer than expected, the thing the manual did not mention.
• Your own data or screenshots where they are yours to share, clearly explained.
• Honest limits. What you have not tested, where your experience does not apply, who should get different advice.

Imagine, as an illustration, two posts on choosing a solar inverter. One lists features copied from manufacturer pages. The other is written by an installer who explains which settings homeowners usually get wrong and what the installation looks like on a typical rooftop. The second one gives the reader something they cannot get elsewhere, and that is the whole point.

Experience also belongs on commercial pages. Job write-ups, process photos and named team members on a service page do the same job. The service page walkthrough shows where these fit alongside the sales copy.

Sources, citations and editorial dates

Citing sources

When you state a fact you did not establish yourself, say where it comes from. Link to the primary source where possible: the regulator, the official documentation, the original research. Avoid linking to a page that is itself summarising someone else. Do not cite anything you have not read.

Citations also discipline your writing. If you cannot find a source for a claim, that is a strong hint to remove or soften it. Content that makes confident claims without support is one of the clearest signs of low trust, for readers as well as for search engines.

Dates that mean something

Show when a page was published and when it was last meaningfully updated. “Meaningfully” is the key word. Changing the date without changing the content misleads readers. If you update a guide, it helps to note what changed, especially on topics where rules or prices move.

Editorial standards

For sites that publish a lot of advice, a short editorial policy page explaining how content is written, reviewed, corrected and updated is a useful trust signal. Keep it truthful and short. A policy you do not follow is worse than none.

Site-wide trust signals readers look for

Some signals live outside the article but affect how every page is perceived. Use this checklist:

• An About page that names the people or company behind the site and explains what you do.
• Contact details a real person can use: an email address, phone number and, for local businesses, a physical address.
• A privacy policy, plus terms, returns or refund policies where you sell anything.
• Clear disclosure of affiliate links, sponsorships or paid placements.
• Secure, working pages without intrusive pop-ups that get in the way of the content.
• Consistent business name, address and phone details across your site and profiles.
• Reviews and testimonials that are real and attributed, never written by you.

Authority builds over time from consistent focus. A site that covers one subject area thoroughly is easier to recognise as a reliable source than one that publishes on everything. My post on building topical authority explains how to plan that coverage.

Extra care for YMYL topics

YMYL means “Your Money or Your Life”: topics where poor information could seriously affect someone’s health, finances, safety or wellbeing. Medical advice, legal matters, investments, tax and similar subjects all fall here. The rater guidelines hold these pages to a higher standard, which makes sense: a wrong answer about medication is worse than a wrong answer about houseplants.

If you publish in a YMYL area:

1. Have content written or reviewed by someone with relevant, verifiable qualifications.
2. Cite authoritative primary sources for every important claim.
3. Keep pages up to date and remove or revise anything that is no longer accurate.
4. Be clear about who the advice is for and when the reader should speak to a professional.
5. Avoid sensational claims, guarantees and miracle language entirely.

For a clinic, a law firm or a financial adviser, these signals are not extras. They are the baseline for being taken seriously, by search engines and by patients or clients.

Putting it together on one page

Here is how the signals stack up on a typical guide, top to bottom:

1. A specific title and an answer-first opening.
2. Byline with a link to the author page, plus “reviewed by” if relevant, and the last updated date.
3. Body content with first-hand detail, original images and cited sources.
4. Clear statement of limits, and when to seek professional help on sensitive topics.
5. Footer and navigation that lead to About, Contact and policy pages.

Much of this overlaps with good structure for search features. A named author, consistent facts and clear sourcing also make content easier for answer engines to cite, which I cover in structuring content for AI Overviews. And if a trust-focused update to an existing page is on your list, start with pages already close to page one, as described in finding striking-distance keywords. For the wider checklist these signals sit within, see how to do on-page SEO step by step.

Questions people ask about E-E-A-T

Does adding author schema improve E-E-A-T?

Structured data can help search engines connect a page to its author, but it does not create expertise or trust that is not there. Treat it as a way to describe what is already visible on the page, not as a shortcut. The visible byline and a substantial author page matter more.

Can a business site without named authors still show E-E-A-T?

Yes. The business itself can be the visible creator, with clear ownership, contact details, real team members and evidence of work. For advice-heavy content, though, naming the person who wrote or reviewed it adds credibility that a company name alone cannot.

Is AI-written content automatically low in E-E-A-T?

Google’s stated position focuses on the quality and helpfulness of content rather than how it was produced. The practical problem is that AI drafts lack first-hand experience and can state errors confidently. If you use AI tools, a qualified person needs to add real experience, check every fact and take responsibility for the result.

How long does it take for E-E-A-T improvements to show?

There is no fixed timeline, and no guarantee of a ranking change. These improvements make pages more credible to readers straight away, and search engines may reflect that over time as they recrawl and reassess the site. Treat it as long-term quality work, not a quick fix.

Making trust visible on the page is a large part of what I do through my on-page optimization service, especially for clinics, consultants and other businesses in sensitive sectors. If you want to know which signals your pages are missing, ask me for a free audit and I will go through a few key pages with you.