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By Marie Haynes

What is E-E-A-T?

Last Updated 26/01/2023
E-E-A-T in SEO stands for Experience, Expertise, Authoritativeness and Trustworthiness. The extra E, Experience was added by Google in late 2022. In 2022 Google confirmed E-A-T is rated for every query that is searched. The concept of E-A-T is discussed in great detail in Google’s Quality Raters’ Guidelines.  Google’s own documentation tells us “if you understand how raters learn to assess good content, that might help you improve your own content.”

Note about Google’s addition of Experience to make E-A-T, E-E-A-T:

I’ll be updating this article soon to share more about the extra E Google has added to E-A-T, Experience. For now, here’s what you need to know:

Some videos where I explore E-E-A-T:

E-A-T is important for every query

In November 2022, at SMX Next, Google’s HJ Kim told us that E-A-T is important for every query. This man has not spoken much at all publicly about Google’s algorithms but he has lead the teams responsible for launching many updates related to quality over the last 20 years including the Panda algorithm.

I would highly recommend registering for SMX Next (it’s free) to watch this entire interview. Barry Schwartz and HJ talk about many interesting things including how the original Panda algorithm has evolved into one called Coati.

Here is what I learned from this interview:

  • E-A-T is a core part of Google’s metrics.
  • It’s been around for 10-13 years.
  • It is there to ensure the content people consume is not going to be harmful and is going to be useful.
  • It is a template “of how we rate sites” based on expertise, authoritativeness trustworthiness.
  • “We do it to every single query in every single result.”
  • It is more important for YMYL queries – like looking for information on a mortgage or a local emergency room.

I have been studying Google’s concept of E-A-T since 2017. I have obsessed over everything Google has said on the topic. In this article I will explain what E-A-T is and how you can make changes to help improve your E-A-T which could potentially translate into better rankings and more traffic.

Want to learn more about E-A-T?

There’s a lot more in the article below, but here if you like video, these will be useful.

Watch all three parts of my E-A-T webinar series to help you learn more about each topic in depth. I answer audience questions on E-A-T.

This is three years old though. My most recent podcast episode will be up on Youtube soon. For now, you can listen to this advanced discussion on what is important for all website owners to know about E-A-T right now.

Buy Marie’s book to help you evaluate your E-A-T like a quality rater

In this book, Marie shares tips that will help you improve your site’s quality in the eyes of Google. We’ve reduced the price from $99 as a new completely different version is coming. This version is still incredibly helpful and relevant! Many SEOs use it as a checklist in their site audits.

Buy Dr. Marie Haynes’ Google’s Quality Raters’ Guidelines Book

What do the Quality Raters’ Guidelines (QRG) say about E-A-T?

Google’s quality rater guidelines, also known as the search quality evaluator guidelines, are available for anyone to read. Google updates the wording in this document a couple of times a year.

This document is loaded with discussions on Expertise, Authoritativeness and Trustworthiness. We want to pay attention to this information as Google has told us that these guidelines are a key to helping us understand what Google wants to see on a website in terms of quality.

In a CNBC interview, Google’s VP of Search, Ben Gomes was asked about the connection between Google’s Quality Raters’ Guidelines and Google’s algorithms. He said:Ben Gomes on the QRG

You can view the raters’ guidelines as where we want the search algorithm to go. They don’t tell you how the algorithm is ranking results, but they fundamentally show what the algorithm should do.

If you have ever wondered what it is that Google considers “high quality”, the QRG is actually a textbook that explains this in great detail!

While Google’s algorithms are not an exact representation of what is in the QRG, as mentioned above, the QRG reflect what Google wants the algorithms to do. And there is a LOT of information about Google E-A-T in these guidelines.

Let’s look at what the QRG say about E-A-T. The following screenshots are all taken directly from the latest version of the guidelines, which at the time of publishing this article is the version released on July 28, 2022. E-A-T is mentioned in these guidelines 130 times!

Google's E-A-T Guidelines

Google says that E-A-T is very important. The raters are given many guidelines to consider when it comes to evaluating E-A-T. While we don’t know exactly what factors Google’s algorithms measure, we can learn to demonstrate good E-A-T by reading these recommendations.

E-A-T is extremely important for Your Money or Your Life (YMYL) sites

If your site is a medical, legal, or financial site, then having good E-A-T is crucial. What does it mean to “have good E-A-T?”  If Google detects a query is YMYL, they put more weight into the E-A-T signals that demonstrate that you are recognized as a good source of information on this topic. For example, if you service a medical clientele in real life, you’ve got E-A-T. There will be signals online that speak to your legitimacy. Citations that you would expect a business to have such as a Google Business Profile, social profiles, mentions in the news, links from business partners are all signals that Google can use.

E-A-T is very important for any site that writes on a topic that could be considered YMYL.

YMYL definition July 2022 QRG

The QRG tell us that YMYL content that is lacking E-A-T is to be considered low quality.


Even if your topic is not an obvious YMYL topic, we still would recommend paying attention to Google E-A-T.

Did you know that Google has a list of characteristics of high quality pages?

The QRG list a high level of E-A-T as the first characteristic of a high quality page.

high quality pages

Author E-A-T is important (for many, but not all sites)

The signals that Google use to determine E-A-T can likely be applied to brands, to websites, to businesses, and also to authors. Most likely, Google’s knowledge graph helps Google evaluate many signals connected to E-A-T. I believe that as an author starts to become mentioned by other experts or authorities online, this can help create relationships in the knowledge graph.

Google is looking for signals to measure that demonstrate your content is created from a position of expertise. In some cases, a website itself may be known for having expertise on a topic. In others, the expertise of the author themselves might be considered.

The QRG tell us that if the creator of the main content (MC), or in other words, the author, is lacking expertise for the topic, the page should be rated as low quality.

author lacking eat

This is extremely important! Think of how many sites writing on YMYL topics have articles that are written by people who are fantastic journalists, but who have no actual real life experience on the topic on which they are writing. This might be ok if you have a level of authority that people would expect as acceptable to write on a topic.

For example, a news outlet like Forbes might have an article ranking written by a journalist who lacks first hand expertise. But, there is a level of trust and authority that comes by being known as a news organization with editorial standards.

What you need to ask yourself is this:

For your topics, do others online truly recognize either your website or your authors as experts on the topics you cover?

If not, you are lacking in E-A-T. Ranking will be difficult.

The QRG are loaded with examples of articles that Google considers low quality because of a lack of author E-A-T.

This screenshot is from the QRG:

author lacking EAT example in QRG

You can see that this is an article about a financial topic. Here is how the raters are instructed to assess a page like this:

Lacking author expertise

“There is no evidence that the author has financial expertise. Because this is a YMYL financial article, lacking expertise is a reason for a Low rating.”

As such, I think that it is vitally important for many sites that every author on your site has a thorough author bio that talks about why they are qualified to write on this subject. The exception is for sites where the site itself is widely known for their subjects.

The Knot is known for writing on wedding topics.

Search Engine Land is known for SEO topics.

IBM is known for topics related to computers.

Google’s algorithms know that content produced on these sites is often referenced by other experts or by other users. These sites can publish content without author bios and likely it will not suffer. Still, if I were creating content for these sites, I would not rely on my brand authority to demonstrate E-A-T. I want to give Google as many signals as I can to help them understand that my content is written from the perspective of people who know their stuff on these topics.

If you want to rank for queries where first hand expertise is important (which likely is most content), unless your brand is very well known, you likely can benefit from adding author bios to help your readers and also Google understand their expertise. That is, however, assuming that your authors truly do have expertise.

You should link these author bios to an author page that goes into even greater detail. I also recommend implementing author schema and sameAs schema to give Google as much information as possible on your authors and where other expert or authoritative sites have recognized their expertise.

On a bit of an embarrassing personal note: I am not making optimal use of schema on my own site. It’s on my list as something important to improve upon!

Here is another example from the QRG of an author who is lacking expertise:


If you Google this author’s name, you will find that she is known as a content writer, but there is very little evidence that she has expertise, authoritativeness and trustworthiness as a medical writer.


Note: I recommend that you do this kind of search for your authors. Google their name. You may need to add a keyword if they have a common name. You’ll also want to use a negative site query so that you don’t just see posts from their sites. For example, here is a search for “marie haynes” seo

You can see that I am mentioned in places that are recognized as authoritative for SEO:


Another great way to check for perceived authority is to do the same search on Google News. You can see here that I have a couple of hundred mentions in Google news for my name in connection with SEO:


I did this same search for one of my colleagues, Dylan. Even though Dylan is really good at SEO and has a lot of knowledge, he is likely seen as lacking in E-A-T for this topic because there is no one else mentioning him online.


This doesn’t mean that Dylan is not good at SEO. (The opposite is true!) But, if he wanted to start publishing SEO articles, they likely would not rank well until he builds up online authority.

Going back to the example in the QRG, with the author who has written about the flu, this is what the QRG say about her:

author lacking medical eat

“There is no evidence that the author has medical expertise. Because this is a YMYL medical article, lacking expertise is a reason for a Low rating.”

I believe it is vitally important that your authors are recognized as an authority in your vertical.


Characteristics of a Low Quality Page

The very first characteristic of a low quality page listed in the QRG is a lack of E-A-T.

low quality pages - QRG

How does Google measure E-A-T algorithmically?

Google tells us in their documentation on How Search Works that there are several steps to the ranking process:

  • They understand the meaning of your query.
  • They find content in their index that is relevant to your query. (How they do this is a whole other fascinating discussion. Google’s new documentation on how their systems work tell us that AI called RankBrain helps Google understand concepts in queries. And neural matching helps Google find pages that cover those concepts. And passage ranking helps them find individual sections of pages that are relevant.

It’s the next step that we are most interested in here. Google calls it “Quality of content”. To determine content quality, they identify signals they can use to determine which content demonstrates E-A-T.

E-A-T is a step in the ranking algorithms

When Google runs a core update they tell us to focus on two things:

  • Focus on content. They gave us a whole list of questions to assess to help us do this.
  • Get to know the quality rater guidelines and E-A-T

(I am honoured that Google linked to this very page you are reading now in their recommendations on where to go to understand more on E-A-T.)

They recently added even more questions for us to consider to help us determine if we are producing content that is helpful.

Many of the “helpful content questions” relate to E-A-T:

  • Does the content present information in a way that makes you want to trust it, such as clear sourcing, evidence of the expertise involved, background about the author or the site that publishes it, such as through links to an author page or a site’s About page?
  • If someone researched the site producing the content, would they come away with an impression that it is well-trusted or widely-recognized as an authority on its topic?
  • Is this content written by an expert or enthusiast who demonstrably knows the topic well?
  • Do you have an existing or intended audience for your business or site that would find the content useful if they came directly to you?
  • Does your content clearly demonstrate first-hand expertise and a depth of knowledge (for example, expertise that comes from having actually used a product or service, or visiting a place)?
  • Did you decide to enter some niche topic area without any real expertise, but instead mainly because you thought you’d get search traffic?

How to improve Google E-A-T

We have established that E-A-T is an important part of Google’s algorithms. A lack of E-A-T makes it very hard to rank. So, does this mean that only sites recognized as authorities can rank well? Is there nothing else that can be done?

E-A-T can definitely be improved upon. At the end of this article I will share examples of sites that we believed saw ranking improvements after implementing our E-A-T suggestions.

To discuss ways of improving E-A-T, we’ll look again at quotes that come from the QRG. Here are several things that are suggested in the QRG that can give us clues to how Google might assess E-A-T.

Not all of these are important for every niche though. For an E-Commerce store, reviews could be seen as a sign of the store’s popularity. For a doctor’s website, Google is more likely to look to signals demonstrating real life expertise in medicine. Still, each of these should be considered for your site:

1) Get good reviews

What people say about your business online matters. Here is how the quality raters are instructed to do reputation research:


They are told to look at Yelp, the BBB, Amazon and Google Shopping amongst other sources:

reputation research


This does not mean that a high rating on the BBB is going to make you rank better. It would likely be just one of the many signals Google considers when a searcher does a query for which a site’s reputation is important.

If you have the odd bad review, that is not likely to hurt you:


But, if it is obvious that most people who are reviewing your business online are complaining, then I believe that this can affect Google’s assessment of quality for your site.

Here are some factors that we look at based on things described in the QRG:

  • Do competitors have significantly more reviews online? If more people are talking about your competitors, then this might be a sign that they are more highly recognized as an authority than you are.
  • Do competitors have a much larger number of positive reviews than you do?
  • Is the general overall sentiment of reviews negative?

2) Get Wikipedia mentions, or better yet, your own page

Wikipedia is mentioned a lot in the QRG. It is clear that Google recognizes it as a trusted site. In the past, SEOs would often say that links from Wikipedia don’t matter as they are nofollowed links and don’t pass any PageRank. But, now that we know Google has many systems they use beyond PageRank it is not hard to imagine why Wikipedia mentions could speak to a business’ legitimacy. Wikipedia mentions contribute to the knowledge graph.

Getting your own Wikipedia page is really hard. You have to meet Wikipedia’s standards on notability which include the following:

  • All information about your company has to be verifiable.
  • The business has to have received significant coverage from reliable sources.

That sounds a whole lot like E-A-T, right? This is why it is hard to fake authority. Having a Wikipedia page can help improve your perceived authority, but you can’t get a Wikipedia page unless you already are perceived as an authority!

You can find out a lot about Google’s assessment of authority of a site, including whether they have a Wikipedia page by looking at their About This Result information. There’s more here if you want to play around with this:

If all of the top ranking sites for your keywords are recognized as authorities by Wikipedia and granted their own page, and your site does not have one, there is a good chance that you’re going to struggle to rank for these keywords.


3) Get mentions on authoritative sites

This is probably the most important aspect of Google E-A-T. The “A” in E-A-T, meaning “Authoritativeness” is most likely determined by your authoritative mentions.

news article - qrg

As mentioned previously, Google is getting much better at determining which mentions across the web truly are votes for your business. If a link or a mention is easy for you to obtain because you have provided content, paid for the link, or in some way incentivized the site owner to link to you, most likely, this mention will not do much to help.

It is worth noting that many people who did a lot of link building in ways that contradicted Google’s spam policies were hit by the October 2022 spam update. Links can be powerful if they truly are mentions from authorities in your niche or represent recommendations from experts. But Google is getting much better at determining which links are just there because an SEO is trying to trick their algorithms into thinking others are recommending content.


Legitimate mentions can contribute to your E-A-T. When Barry Schwartz mentions me on SERoundtable, that likely helps improve my perceived authority on the topic of SEO.


Good authoritative mentions are usually difficult to get. But, if you want to be known as an authority, it is vitally important that you find ways to get them.

Good authoritative mentions often are like good Public Relations (P.R.) You want people to be mentioning your business in a positive light. The more good discussion you can generate about your business the better. This likely contributes to E-A-T.

Note from Marie: If you have struggled to find good link builders, you are not alone. It is easy to build links. It is very difficult to find ways to truly get other experts and authorities to mention you online. I do not offer link building, but if you need help here, you can reach out and I am happy to introduce you to someone whom I feel does good work in this area.

QRG example of an author with good E-A-T

In the QRG, they give this as an example of an author who has good E-A-T:


Remember when we Googled the name of the author who did not have E-A-T to write about the flu? When you Google the name of the author in this example, you can see that she is mentioned all over the place, on authoritative sites, in connection with parenting:


And here is what the QRG say about this author:

known for - qrg

She is known as an expert on parenting issues.

It is not enough to just have experience, in order to have good E-A-T, you also need to be known online as an authority in your field.

If you are struggling to get authoritative mentions, here are some ideas that may help:

  • Publish original research. This often will get mentions from authoritative places.
  • Summarize current scientific research. Let’s say you have a site that sells products for diabetics. Let’s also say that new research has just emerged that explains in great scientific detail a new treatment for diabetes. You can take that information and use your personal expertise to explain it in layman’s terms. This often attracts links and mentions.
  • Connect with journalists on HARO or via Twitter. Your goal is to get your name mentioned in connection with a topic discussed on an authoritative site.
  • Create connections with people who are known as authorities in your field. You would not believe how many emails I get from people whom I have never heard of who want me to promote or link to their latest blog post. The people who have a much better chance of getting my attention are those whom I have met in person at a conference, or have had good discussion with online. You will have better success in getting links and mentions if you can truly develop good relationships with influencers in your field. To get mentioned by others, you need to get known by others.

4) Get mentions on forums

This may not be applicable to every business, but if people all over the web are raving about your competitors, then you want to have the same thing be true of your business as well. It may seem ludicrous for me to suggest that forum mentions can help improve your rankings. After all, this is something that could be easily gamed. However, this is what the QRG say:

forum discussions QRG

I believe that it is not difficult for Google to determine which forum mentions are worthy of contributing to E-A-T and which ones are not. For several years, my main line of work was in doing link audits. I have seen thousands of forum mentions created just for links. It is usually quite easy for me to determine whether the chatter is real or whether it is artificially generated by an SEO. But being mentioned in legitimately helpful discussions may contribute to your E-A-T.

Why would Google look at forum information? Think of how you search and value first hand expertise. A few years ago I had the privilege of speaking at the RD Summit which was held in Florianopolis, a beautiful island in the south of Brazil. When I researched Florianopolis I started by looking at sites like Wikipedia. But, the most helpful information came from me reading the user generated content on sites like Reddit, Trip Advisor and other discussion forums.

If your competitors are being discussed in forums all over the place, and you are not, then most likely, you are not as well recognized as an authority.

While I do not recommend spamming forums, I do think that we should all be monitoring the internet for discussions about our brands. If there are negative discussions happening online, then jump in and try to rectify the problems. If people have questions that you could answer, then join the discussion and get your brand known. But be careful not to spam or annoy users.

5) Be trustworthy

One large change that Google made to their algorithms was noticed by SEOs in a core algorithm update the SEO community called “Medic”. Just prior to this update, Google released a new version of the Quality Raters’ Guidelines. While a lot of things changed in this version, the most notable, in our opinion, is the addition of the words “safety of users”. The highlighted words below were added to the QRG just prior to the Aug 1, 2018 update.



The wording has changed slightly in the most recent publication of the QRG as the words “of users” have been removed from the above paragraph. But, safety is still important. E-A-T is strongly connected to safety.

With the August 1, 2018 update, and again with other core updates that followed, we saw that sites that dropped in rankings consistently had issues with trust. These included things like the following:

  • Loads of negative reviews online.
  • Customers complaining about not being able to get a refund.
  • Medical articles that had no scientific references, or that were making claims that contradicted current scientific consensus.

I have written a very thorough article on Trust and how it relates to E-A-T. I would encourage you to read this article if you want more information on how Google likely algorithmically determines trust and how you can improve on this metric.

6) Do all that you can to demonstrate your E-A-T on your website including schema

While Google has told us that E-A-T is mostly determined via off-site links and mentions, we feel that we have seen improvements by extolling your E-A-T on your website. We like to see this type of information on both the homepage and your About page.

SameAs schema may help Google connect the dots in determining who your authors are and where they have been mentioned that is authoritative.

At SMX Advanced I spoke in detail about using a knowledge of semantic search to improve E-A-T. You can watch the video on Search Engine Land.

Is E-A-T a ranking factor?

E-A-T should not be thought of as a ranking factor. But this does not negate its importance in Google’s algorithms!

A ranking factor is a single particular piece of data that Google can use in their algorithms that determine ranking.

As we saw above, Google says expertise, trust and authoritativeness is used for every single query for every result. Google’s HJ Kim described E-A-T as a template they use to rate sites. Google’s How Search Works documentation, tells us that for every search, after Google finds content in their index that is relevant, they next “identify signals that can help determine which content demonstrates expertise, authoritativeness and trustworthiness.” They say that doing this is what helps them determine which content is likely to be the most helpful.

E-A-T is not a ranking factor. As HJ Kim said, it is a core part of Google’s metrics. It is a template they use to rate every single site for every single query.

It is vitally important we pay attention to everything Google tells us about E-A-T.

Here is what Google says about whether E-A-T is a ranking factor

Since we originally wrote this post, we have been occasionally asked if E-A-T is a ranking factor. Our automated systems use a mix of many different signals to rank great content. We’ve tried to make this mix align what human beings would agree is great content as they would assess it according to E-A-T criteria. Given this, assessing your own content in terms of E-A-T criteria may help align it conceptually with the different signals that our automated systems use to rank content.”


E-A-T Success Stories

I have been helping sites improve their E-A-T based on Google’s Quality Raters’ Guidelines and Google’s quality content documentation since 2017. E-A-T improvements are hard to track because you are rarely implementing just one thing. Our goal when improving websites in the eyes of Google’s algorithms is to do all we can to demonstrate E-A-T and helpfulness.

I have seen quite a few websites make nice improvements after implementing changes to help improve their Google E-A-T. Here are some examples of sites that have worked on improving E-A-T and have seen gains. I am using screenshots from SEMrush here as not all of our clients have given us permission to share their analytics data. Please know though, that I will only share SEMrush traffic estimates when they are similar to what we are seeing in Google Analytics.

Early E-A-T success story – Saas brand

This is a site that we had been working with for months and were struggling to see improvements for. They were one of our first E-A-T success stories even before we knew what E-A-T was. We had recommended the following which we believe contributed to their success:

  • Getting better known as a top player in their space (software as a service). This meant getting a lot of authoritative mentions.
  • Being more clear on displaying why users should engage with them. In other words, we put more verbiage on the website to encourage people to trust this business.
  • Cleaning up thin content. While this is not directly an E-A-T issue, we do think that it can contribute to trust. If Google sees that 90% of your content in the index is junk, this likely can lower the quality of your site.


Medical site sees great gains after improving author E-A-T

This is a large well known site. They were hit hard in February of 2017. Most of the changes that we recommended centered around E-A-T:

  • They added author profiles to each of their posts. Each profile boasted about the author’s E-A-T and then linked to a full article on that author that went into great detail on awards they had won, places they had been mentioned, etc.
  • They hired physicians who were well known in their field and had them medically fact check each of their articles. Physicians were also given an author box and their E-A-T was extolled.
  • Improved upon the use of medical scientific references.
  • Added a “last updated” date to all of their posts and made quarterly reviews to determine whether new information should be added to these posts.


News site sees nice improvements after beefing up author E-A-T

This site reports on tech news and has a lot of competition. After they were hit hard in February of 2017, they had us do a site quality review. This site has been seeing nice gains. However, we don’t attribute all of these gains to E-A-T as we also worked on improving technical issues and trimming out thin content. However, here are the E-A-T related changes that we recommended:

  • Less aggressive use of annoying ads. (This likely contributes to trust)
  • Added more information to the About page to tout how much experience they have and awards won.
  • We encouraged them to get more authors who were already known as authorities in tech.
  • Less writing on subjects for which they did not have E-A-T. For example, previously they had articles that really should have been written by medical experts. Now, they focus much less on medical topics and more on tech topics.


eCommerce site jumps to page one for competitive terms

This is one of our favourite stories. This site is a brand that is relatively well known in their space. They sell a big ticket item with a lot of competition. Although they hadn’t been hit by a quality update they came to us to see if we could help them do even better.

Again, we made some changes on this site that were not specifically E-A-T related such as improving upon their internal linking. But, we also recommended the following which we believe contributed to their ongoing success:

  • Loads of improvements on their About page to demonstrate why they are known as one of the best in their field. This included adding information on awards won, celebrity endorsements and places in which they had been mentioned in the press.
  • More information on their homepage to tell people information related to E-A-T.
  • Added customer testimonials across the site which helps users to trust them more.
  • Made it more clear who was responsible for the website’s content.


Another successful medical site

This site came to us after a strong hit connected with a quality update. We made the following recommendations:

  • Added more information on each author to extol their E-A-T.
  • Hired physicians to medically fact check articles.
  • Improved use of scientific references.


Legal site that was hit hard with a quality update

This small legal site saw a big hit in late 2017. We recommended a number of technical changes for this site, but they also made big improvements in how they display E-A-T.

  • Added loads of information the home page to tell potential customers why their office is known as one of the best in the city.
  • Did a lot of boasting on the home page plus the about page on awards that the practice had won.
  • Added customer testimonials.
  • Added more boasting on their successful verdicts.
  • Created a page for each lawyer that extolled the lawyer’s E-A-T by mentioning awards won, places that they have been mentioned, schooling, and more.
  • Added a press page.

They’re not back to where they were before the hit, but they are getting there.


Medical information site

This site is written by someone who has expertise, but previously was not known online for this. We helped them improve E-A-T and it is going well!

medical site improved EAT

eCommerce site

We did a lot of work with this site including helping them improve their recognition and reputation online. They also have been working on improving technical site health and overall content quality.eCommerce site improvements

Buy Marie’s book on the QRG

Many SEO’s use this as a checklist in their site audits. It will teach you to think and evaluate your content like a quality rater.

Dr. Marie Haynes’ Google’s Quality Raters’ Guidelines Book

Sign up for Marie’s weekly newsletter – packed with tips to improve E-A-T and more

Some podcast episodes that may help


For a while, my team documented every single time Google discussed E-A-T. These may help:

July 2020
Google published documentation on how to rank in Discover, stating that “Our automated systems surface content in Discover from sites that have many individual pages that demonstrate expertise, authoritativeness and trustworthiness (E-A-T). Those looking to improve E-A-T can consider some of the same questions we encourage site owners to consider for Search. While Search and Discover are different, the overall principles for E-A-T as it applies to content within them are similar.”

June 2020
Great tips from Lily Ray on improving EAT for your authors.

May 2020
The May core update, released on May 4, 2020 appeared to once again reward websites with strong E-A-T. Something we noticed was that in many cases, sites that demonstrated real life expertise on a topic were rewarded. An example given in the article linked to, of a site that did well with this update would be an affiliate site that instead of just posting other people’s reviews, actually used the products themselves before publishing their review.

April 2020
Lily Ray wrote a great article, published on SEJ that will answer all of your questions about schema as it applies to your authors.

March 2020
Bill Slawski wrote an article for Search Engine Journal describing how Google can tell whether your content is expert written and the role this could play in determining E-A-T.

February 2020
This Bill Slawski article tells us that Google could be using something called Website Representation Vectors as a way to help measure E-A-T.

September 2019
Marie’s Whiteboard Friday with Moz discusses E-A-T and the Quality Raters Guidelines.

Google announces their partnership with the Mayo Clinic. This is interesting as this could impact health SERPs. It could be possible that Google is mandating only trustworthy health site, which aligns with our theory on how Google could measure scientific consensus and whether alternative health sites could be suppressed.

Marie sits down with Barry Schwartz to discuss algo updates, E-A-T, and penalties (video)

August 2019
Listen to Marie discuss the June Core Update with Authority Labs! (video)

Catch Marie talk about E-A-T, the Quality Raters Guidelines and more on her recent Digital Rage Podcast.

A leaked document shows more evidence of Google trying to algorithmically fight against sites contradicting scientific consensus (which in our opinion is what Google is trying to do with health sites in the June 3, 2019 Google update). If you’re a paid subscriber to our SEO newsletter, then you can get some of our detailed opinions on how this could be suppressing sites that contradict scientific consensus.

John Mueller talks about how Google tries to look at E-A-T for medical sites. John confirmed that they do look at information such as the author, the site overall, and reviewers partially through the content. He also recommends that you find an approach primarily for users, so it might not be best to hide it in structured data.

Google’s blog covers the topic: What webmasters should know about Google’s core updates. MHC was fortunate enough to earn a link from Google (to this very page) which provided additional reading for webmasters.

July 2019
From Google: Would a federal medical centre benefit from adding doctor author bios? John Mueller says if the work has been written or reviewed by an expert, it makes sense to indicate this. Here is his exact response: “I I think that’s something that you probably have answered already in that if you’re providing information on your webpage and it is kind of checked or written/created by someone who has a lot of knowledge on that topic then that’s something I would definitely highlight.”

Are you a health/medical site with content written without relative medical expertise? You can improve your content, remove or, or noindex it. Should you want to improve it, John says that having a medical expert on hand is a good idea.

Author E-A-T: It is possible to rank using a pseudonym? John Mueller once again hints that yes it is possible as Google’s algo’s likely do not judge the realness of author names used. He also noted the complexities with understanding a name which was a rather fascinating read.

How established are you in your niche and what are people saying about you? Google may be looking at prominence and what others are saying about you.

John Mueller discusses authorship and E-A-T in relation to using pseudonyms.

New info from a Google employee on the power of authority. This article from The Guardian says due to the rise in US school shootings, they’ve tweaked the algorithm to allow for adjustments to authority.

June 2019
John Mueller says in a Help Hangout that if you’ve seen a drop and you’re worried about E-A-T, you should work on increasing overall site quality.

Google rewards reputable reporting says the Economist. The study reveals that Google does indeed assess E-A-T on a site.

May 2019
Google confirms that they worked on improving medical search results in 2018. John also confirms that E-A-T is an important component to work on for medical sites.

Pedros Dias provides a great indication via Twitter regarding what composes quality. Check this out!

Building Trust for Your Service Area Business (article).

Possibly a minor quality update on May 9, 2019 . Many of our clients who have been working on E-A-T related changes saw slight increases on May 9. However a few saw slight decreases. We think that this was potentially a refresh of some sort in which Google re-assessed E-A-T signals for many sites.

Google’s new portal for How News Works (+touches on how E-A-T is a factor). Basically it says, “…our systems are designed to identify signals that can help determine which pages demonstrate expertise, authoritativeness and trustworthiness on a given topic, based on feedback from Search raters. Those signals can include whether other people value the source for similar queries or whether other prominent websites on the subject link to the story.”

Interesting note from John Mueller in a Hangout. John says that it’s not impossible for a distributor to outrank a manufacturer. It boils down to value, quality, technical standpoint, and authority!

Great E-A-T reminder courtesy of Lily Ray: if you Google your “company’s name + scam” and you see legitimate results on page 1, this can impact your organic performance. Consider engaging in a reputation management program (and obviously do some soul searching to see why customers consider you a scam)!

Bill Slawski discusses Trust Metrics at Google (article).

April 2019
Re: the March core update: John Mueller says to definitely check out the Panda questions from 2011 (more guidance on building high-quality sites). He also suggests that webmasters read the Quality Rater Guidelines (QRG) to understand what Google deems high versus low quality. This was such in important tip, John mentioned just days later that once again you should gather feedback from real users and read the Panda questions.

In a hangout, John says that for new sites, you won’t be an expert from day one. There’s no magic trick to appear to be an expert in Google’s eyes. Just work hard to have more expert-level content over time. Be an authority on a topic.

John Mueller regarding the March Core Update said,  on the one hand, technical SEO issues are always smart to fix, but if the overall view of the site makes it hard to tell you’re an expert, then that can play a role as well

Advanced Search Summit tip: The website reputation matters. Google looks at words that co-appear with your brand name

March 2019
Danny Sullivan preannounced a significant core quality update (March 12, 2019) which later was coined by Google as the “March Core Quality Update”. I wrote an article for Search Engine Land that provided many examples of sites that saw noticeable improvements with this update and also included the types of changes that these sites made).

February 2019
possible small quality update on February 27, 2019 provided nice improvements to clients of our were working on E-A-T related changes. This was likely a general quality update.

Stone Temple (now part of Perficient Digital) released an excellent article titled ‘Why Google’s Search Quality Raters Guidelines Matter to Content Marketers – Here’s Why #203’. The article clearly lays out why you should be paying attention to E-A-T.

Google releases a whitepaper which basically confirms that E-A-T is incredibly important.

possible small quality update on February 16, 2019 resulted in many of our clients who were working on quality improvements see small positive changes. In our opinion, we feel that this was likely a re-assessment of E-A-T for many sites.

Gary Illyes in his Reddit AMA says that E-A-T is connected to links (although states that that is an oversimplification).

Gary Illyes in his Reddit AMA says that relevance is something they are constantly trying to figure out and that is evolving rapidly. However he references the QRGs twice stating that that is the process through which they evaluate if the algorithm is doing what they want it to do.

January 2019
January 31, 2019 was no a suspected update date, but some large sites saw major drops (for example, (not .gov)) on this date. We think that this could reflect Google’s assessment of the “T” (Trust) in E-A-T.

John Mueller says it’s hard to measure author E-A-T algorithmically. A lot of things are soft quality factors that Google tries to figure out.

December 2018
Part 1 of 3 of Marie’s E-A-T webinar is available. It covers the basics of E-A-T. What is it? Is Google using it algorithmically? And it wraps up with audience questions. Check out our video and transcript to see it in full.

An algorithm update from December 4-6, 2018 (likely a mild quality update) resulted in further drops for many sites with previous E-A-T related issues. There was no obvious pattern as to what was addressed with this update but we felt there was a link component to it based on the fact that many clients who we recently filed disavows for saw gains.

November 2018
An algorithm update from November 23-26, 2018 — which we suspect was a core quality update — resulted in many gains for our clients who had been working hard to improve their E-A-T.

Debate begins on whether Google uses information from the BBB as a ranking factor. Marie joins the discussion on the 15th.

October 2018
An algorithm update on October 31, 2018 appeared to be a significant core quality update. Many sites that saw drops on August 1, 2018 or September 27, 2018 saw further drops on this day. We saw a couple of clients who have worked hard to improve “trust” (the “T” in E-A-T) make nice improvements.

John Mueller reinforces that we should be doing more to promote author E-A-T including adding author schema.

Having a physical address isn’t always a sign of trust. It is often used this way for pure eCommerce sites and if your top competitors all have a valid address listed on their site.

Cyrus Shepard shares great tip for keeping an eye on your E-A-T.

September 2018
Google confirmed that an algorithm update but called it “small”. On the dates of September 24-27, 2018  (and continuing into October) we saw some really significant changes in sites we monitor. It looked to be a tweak on the August 1 “Medic” update. Danny Sullivan of Google later confirmed that this was a broad core quality update and that it would roll out into October.

Google confirms in a blog post that authority is a ranking factor, saying, “For starters, the authority of a web page is now a more important signal in the ranking.”

John Mueller said in a hangout that an author bio can be helpful to include on your site. Specifically he said, ““Often times, it makes it a little bit easier for users to understand the context of whatever you’ve written. If you have a link to an author profile that shows you really know what you’re talking about, you go to conferences, you’ve written about this is different places on the web. This gives them more trust in your content on the web. All of these things might be reasons why you might have an author profile page you link from your content.”

August 2018
John Mueller made some comments in a hangout about Google’s Quality Raters’ Guidelines and how they relate to author E-A-T. He talks about how E-A-T is a factor rather than seeing this explicitly to rank your website.

There was a massive August 1 update likely related to E-A-T. Many sites in the health/wellness/medical space were heavily impacted, and was thus nicknamed the Medic Update, however this was not the only industry to be affected. There are also reports of non-YMYL (Your Money or Your Life) sites being affected as well. In my opinion, this is the biggest update we have had in a long time.

July 2018
Great E-A-T idea from Marie RE: vet open house day.

June 2018
A great E-A-T developing idea from Marie inspired by Lululemon.

Marie suggests, following a case study, that social mentions can increase your E-A-T.

Link building tip for E-A-T inspired by Domino’s filling potholes.

May 2018
There was a quality update. At MHC, we saw some clients who had been working on improving E-A-T see nice gains.

Can social mentions improve E-A-T? In this newsletter episode, we give an example of a brand that found a way to make a crazy product go viral. We do believe that large amounts of positive social mentions can help improve Google’s assessment of your brand’s authority.

April 2018
An algorithm update on April 16, 2018 may have been a tweak to the way in which Google algorithmically assesses E-A-T. We saw improvements for clients’ sites that had been working on E-A-T improvement.

new Google patentwritten about by Bill Slawski talks about a new way in which Google can calculate PageRank so that link equity only passes through trusted pages. Most likely, those trusted pages are pages that have good E-A-T.

March 2018
An algorithm update on March 7-9 was confirmed by Google. Google confirmed that this update was primarily about relevancy. Many sites that were affected had E-A-T issues.

Customer testimonials can help improve Google’s assessment of Trust for your site. Here is a great article by Joel Klettke on how to get high quality testimonials.

Gary Illyes from Google said at Pubcon Austin that Google’s algorithmic assessment of E-A-T is largely based on links and mentions on authoritative sites.

December 2017
significant algorithm update on December 26, 2017 affected sites with E-A-T issues.

An update on December 12, 2017 occurred which appeared to be a significant algorithm update, dubbed the “Maccabees update”. We have noticed that many sites that were hit were sites that were hit with quality updates, and believe that a big component of this update dealt with E-A-T.

November 2017
Google started showing new information in knowledge panels to show a publisher’s awards, and reviewed claims. This shows us that Google can determine information about awards (which speaks to trust) algorithmically.

October 2017
An algorithm update on October 28-29, 2017 seemed to affect sites with E-A-T issues.

An algorithm update on October 8, 2017 happened. We saw nice improvements in a couple of clients’ sites who had worked to improve the E-A-T of individual authors.

September 2017
An algorithm update on September 6-8, 2017 happened. We saw good improvements for a site that had been working at improving E-A-T.

July 2017
In my newsletter I shared about how you can determine what industry Google thinks you are in. It is then important to make sure you have E-A-T for that industry. For example, if Google has you classified as a medical site, but you have no authors with medical experience, this could make ranking in your space difficult.

March 2017
Fred update (March 7-8) – This was a major quality update. It appears to have affected sites that existed primarily for SEO reasons. I also think that at this time Google tweaked the algorithm to reward sites with good E-A-T (Experience, Authority and Trust).

February 2017
Large core algorithm update. This update affected a lot of sites. I saw several sites that I think dropped in rankings because of a lack of E-A-T (Experience, Authority and Trust).

About Marie

Dr. Marie Haynes is recognized as a leader in the SEO industry and has 10+ years of experience helping businesses of all sizes improve their site quality. She is a frequent contributor to and Search Engine Watch and a regular speaker at Pubcon and SMX. Marie was named one of the top five industry influencers by Rand Fishkin, founder of Moz, and constantly stays up to date with changes to Google’s algorithms to the benefit of her clients. To contact Marie, visit the contact page. For media Inquiries, click here.