When Google added a second E to E-A-T, a lot of people treated it as a rebrand. It was not. Experience and expertise are genuinely different things, they are demonstrated in different ways, and for a great many queries the first one is what the reader is actually looking for.
The distinction is worth getting right, because it changes who should write a page and what that page needs to contain.
The Short Version
Expertise is knowledge. Formal training, qualifications, professional standing, deep study of a subject. An endocrinologist has expertise in diabetes.
Experience is having done the thing. Lived it, used it, been through it. Someone who has managed type 1 diabetes for twenty years has experience of diabetes.
Both are legitimate forms of authority on the same topic, and they are not interchangeable. The expert can explain the mechanism. The experienced person can tell you what nobody warned them about. For a query like "what to expect after a knee replacement", the second is arguably more useful than the first — which is precisely why Google added it.
Why Google Added the Extra E
The honest reading is that the open web was flooding with competent, knowledgeable, entirely second-hand content.
Write enough well-researched articles about a product you have never used, and you can produce something that looks authoritative. It summarises the specifications accurately. It is organised sensibly. It also cannot tell you that the thing is uncomfortable after an hour, or that the setup instructions skip a step, because nobody involved in writing it ever touched it.
Readers can feel the difference immediately. Google's guidelines started asking its quality raters to look for it: is there evidence the author actually did, used, visited or lived this?
Generative AI has made that question sharper. A language model can produce fluent, knowledgeable-sounding content about anything, which means fluency and apparent knowledge are no longer scarce. What a model categorically cannot have is first-hand experience. The extra E marks out the thing that cannot be synthesised.
What Each One Looks Like on a Page
This is the practical part, because "demonstrate experience" is advice nobody can action.
Expertise shows up as:
- Named credentials relevant to the topic, not generic ones
- Accurate use of the field's terminology, including its caveats
- Engagement with where the evidence is contested rather than flattening it
- Citation of primary sources rather than other articles
- Appropriate confidence — knowing what is settled and what is not
Experience shows up as:
- Specific detail that could only come from having been there: what it cost, how long it took, what went wrong
- The unexpected parts, the things not in the brochure
- Original photography, screenshots, measurements, data you generated
- Timescales and sequences described from memory rather than from a process document
- Honest limitations — what you tried that did not work
The reliable signal is specificity you could not have got from reading. Any competent writer can summarise the published information. Only someone who did it can tell you about the bit that was annoying on day three.
Expert Attribution: A Third, Different Thing
Here is where it gets muddled, because a lot of sites do something that looks like E-E-A-T and is not quite.
Expert attribution is attaching an expert's name to content they did not create. A staff writer researches and drafts; a qualified professional is credited as author or listed as reviewer.
This is not inherently dishonest — medical publishers have done it responsibly for decades, and a genuine expert review adds real value. But it is a distinct thing from either experience or expertise residing in the content, and it is worth being clear about which you have.
Three ways it goes wrong:
The named expert has not read it. A byline as decoration. If the credited person cannot defend the content, the attribution is a claim you cannot support.
Review is presented as authorship. "Reviewed by Dr X" and "Written by Dr X" are different statements. Say which one is true.
The credential is irrelevant. A solicitor reviewing a page about search engine optimisation lends nothing. The qualification has to bear on the subject.
Done properly, attribution looks like: a named writer, a named reviewer with a relevant credential, the date of review, and a link to a real biography. Done improperly, it looks like a credential borrowed to make generic content seem authoritative — and that is the pattern quality raters are trained to notice.
Which Does Your Page Need?
It depends entirely on the query, and the useful question is what the reader is hoping for.
Queries needing expertise: anything where being wrong is dangerous or expensive. Medical, legal, financial, regulatory, safety. "Is this medication safe with that one" needs a clinician, not an anecdote.
Queries needing experience: reviews, comparisons, "what is it like to", processes with a human cost, anything where the published description and the reality diverge.
Queries needing both: a surprising number. "Choosing a care home" needs both the regulatory knowledge and someone who has been through the search. The strongest content on these topics usually pairs them explicitly.
For a business website, this maps onto something simple. Your service pages need expertise — you should sound like you know your field. Your case studies and guides are where experience lives, and they are the pages most businesses write least convincingly, because they are written by whoever has time rather than by whoever did the work.
Making It Real Rather Than Performed
The failure mode here is adding the appearance of experience to content that does not have any. Inserting "in our experience" into a generic paragraph fools nobody, and the generated-sounding anecdote is now a recognisable genre.
What works is more boring and more effective:
Interview the person who did it. Twenty minutes with the engineer, the consultant, the practitioner, then write it up. The specific details that make a page credible are in their head and nowhere else.
Give authors real biographies. Who they are, what they have done, why they can speak to this. Our author pages exist for this reason. A byline pointing nowhere is not attribution.
Use your own assets. Screenshots you took, photographs of actual work, figures from projects you ran. Stock imagery and borrowed statistics say the opposite of what you intend.
Keep the inconvenient parts. The thing that took longer than expected, the approach that failed. Content with no friction in it reads as marketing, because it is.
Our fuller treatment of the framework is in E-E-A-T in practice, and if you want help turning the knowledge inside your business into pages that demonstrate it, that is what our content marketing work is for.
Frequently Asked Questions
What is the difference between experience and expertise in E-E-A-T?
Expertise is knowledge — training, qualifications, professional standing. Experience is having actually done the thing. A surgeon has expertise in an operation; a patient who had it has experience of it. Both are real authority on the same subject, and for many queries the reader wants the second.
Why did Google add the extra E to E-A-T?
Because knowledgeable but entirely second-hand content had become easy to produce at scale, and readers can tell the difference. The extra E asks whether there is evidence the author actually did, used, visited or lived the thing. Generative AI sharpened the point, since a model can simulate expertise but cannot have first-hand experience.
How is expert attribution different from E-E-A-T?
Attribution is crediting an expert for content they did not write, usually as author or reviewer. It can be legitimate when the expert genuinely reviewed the work and their credential is relevant, but it is a different claim from experience or expertise being present in the content. Say clearly whether someone wrote it or reviewed it.
How do I demonstrate first-hand experience on a page?
With specificity you could not have obtained by reading: what it cost, how long it took, what went wrong, the parts nobody warns you about. Use your own photographs, screenshots and figures, and keep the inconvenient details. Inserting "in our experience" into generic copy demonstrates nothing.
Does every page need both experience and expertise?
No. Pages where being wrong is dangerous or expensive — medical, legal, financial — lean on expertise. Reviews, comparisons and "what is it like to" content lean on experience. A fair number of topics need both, and the strongest content on those pairs them openly rather than blurring them.