Google Quality Rater Guidelines Explained: E-E-A-T, YMYL & What Changed (2026)
What the Google Quality Rater Guidelines really tell you about E-E-A-T, YMYL and page quality, and what changed in the September 2025 update.
Google's Search Quality Rater Guidelines are a 182-page manual that trained human contractors use to score search results. The latest version is September 2025. Raters do not change your rankings directly; their scores train Google's algorithms. The core framework is E-E-A-T (Experience, Expertise, Authoritativeness, Trust), with Trust as the foundation. In 2025 Google added AI-content rules, three spam categories, and expanded YMYL to cover civics and elections.
On this page
- TL;DR
- What are Google's Quality Rater Guidelines?
- Do quality raters change your rankings?
- What changed in the 2025 updates?
- E-E-A-T: the framework behind every rating
- How does a rater actually judge a page?
- How does Google rate a page?
- What is YMYL, and does it apply to you?
- What the guidelines mean for your SEO in 2026
- Where can you read the official guidelines?
- Final take
- Common questions
If you want to know what Google actually means by "quality", this is the closest thing to an answer key it has ever published.
I have been reading the Search Quality Rater Guidelines since Google first put them out publicly. They do not reveal the ranking algorithm. But they tell you the exact target that algorithm is tuned toward.
For anyone doing SEO, that is gold.
Here is the plain-English summary: what the guidelines are, the latest version, E-E-A-T and YMYL, the rating scales, what changed in 2025, and what to actually do about it.
What are Google's Quality Rater Guidelines?
The Quality Rater Guidelines (QRG), officially the Search Quality Evaluator Guidelines, are a 182-page manual Google gives to trained human contractors, who then score real search results. The current version was published in September 2025 and is still active in 2026.
They do not rank your site. They describe the target your site is being ranked against.
The raters are part-time contractors around the world, paid roughly $14 to $20 an hour. Estimates of how many there are vary (figures of 12,000 to 16,000 get quoted; Google has not published an exact number). What matters is the point of the exercise, which trips up most people.
The guidelines have been public since 2015, and they have evolved with search itself:
| When | What changed |
|---|---|
| 2014 | E-A-T introduced (Expertise, Authoritativeness, Trust) |
| Dec 2022 | Experience added, making it E-E-A-T |
| Jan 2025 | AI-content rules and three new spam categories |
| Sep 2025 | YMYL expanded to civics/elections; AI Overview examples |
Do quality raters change your rankings?
No. This is the single biggest misconception, so let me be blunt about it.
A rater's score never touches any individual site's ranking, as Google itself has explained. Their job is to grade sample results so Google can test whether an algorithm change actually improved quality. The scores are training and evaluation data, not a switch someone flips on your site.
So do not chase the raters. Chase what the guidelines describe, because that is the standard Google's systems are built to reward.
What changed in the 2025 updates?
2025 was a big year for the QRG, mostly around AI and spam. Two updates matter.
Update 1
January 2025: AI content and three spam categories
The January 2025 revision brought the guidelines firmly into the AI era.
- A formal definition of generative AI, framed as a helpful tool that can also be misused.
- Three named spam categories raters now flag:
- Scaled content abuse: churning out many pages (AI or human) whose main goal is to game rankings rather than help people, like hundreds of near-identical thin articles.
- Expired domain abuse: buying an old domain for its leftover authority and refilling it with unrelated content it never used to cover.
- Site reputation abuse: the "parasite SEO" pattern, low-quality third-party content published on a strong host domain to borrow its trust (think a coupons section farmed out on a news site).
- The "Lowest" rating for empty content with little to no effort, originality or added value.
- A crackdown on exaggerated claims of personal experience or expertise, and on filler that only pads word count.
The nuance most people miss
Using AI is not a penalty. The guidelines state plainly that the use of generative AI alone does not determine the effort or the Page Quality rating. Low-effort, low-value content scores Lowest whether a human or a machine produced it.
Update 2
September 2025: YMYL and AI Overviews
The September 2025 version is the one live today. It made two notable changes.
- YMYL expanded to explicitly include Government, Civics & Society, covering election and voting information.
- AI Overview rating examples were added, so raters judge AI Overviews with the same consistency as featured snippets.
E-E-A-T: the framework behind every rating
Every quality judgement in the guidelines traces back to four letters: E-E-A-T, for Experience, Expertise, Authoritativeness and Trust.
The order matters. Trust is the most important member of the family, and Google's helpful content guidance says the same. A page can show genuine expertise and still get a low rating if it is not trustworthy.
The newest and most powerful signal is the first E, Experience. Raters want proof you actually did the thing: original photos, your own test data, specific results with dates.
Generic, second-hand writing reads as low experience, and it is the easiest edge most sites are leaving on the table. That is exactly what the SEO best practices that survive core updates lean into.
How does a rater actually judge a page?
Before scoring anything, a rater breaks your page into three parts. This is the lens the whole system looks through, so it is worth seeing.
- Main Content (MC) is the part that achieves the page's purpose. Its quality and E-E-A-T carry the most weight.
- Supplementary Content (SC) is menus, sidebars and related links. It helps, but it is not why the page exists.
- Ads and monetization are fine in moderation, but ads that bury or distract from the MC pull the rating down.
From there, the evaluation follows a set path. Knowing it tells you exactly what to strengthen.
Work out the page's purpose
If a rater cannot tell what the page is for, it gets the Lowest rating on the spot. Make the purpose obvious.
Judge the Main Content
Is there a satisfying amount of high-quality MC? Thin, unoriginal or auto-generated MC fails here.
Check the E-E-A-T for the topic
Does the page and its author show the experience, expertise and trust the subject demands? The bar rises with the stakes.
Research the reputation
Raters look off-site, reviews, references, independent sources, to see whether the site or author is genuinely trusted.
Assign a Page Quality rating
All of the above rolls up into one score on the scale below.
How does Google rate a page?
Raters score every page on two separate scales. Understanding both tells you what "good" looks like.
The Page Quality scale judges how well a page achieves its purpose:
| Rating | What it means |
|---|---|
| Lowest | Harmful or deceptive, no benefit to users |
| Low | Does not achieve its purpose well |
| Medium | Fine, nothing special |
| High | Achieves its purpose with clear expertise |
| Highest | Exceptional, authoritative and comprehensive |
The Needs Met scale judges how well the result answers the actual query:
| Rating | What it means |
|---|---|
| Fully Meets | Answers completely for essentially all users |
| Highly Meets | Very helpful for most users |
| Moderately Meets | Helpful for many, or very helpful for some |
| Slightly Meets | Weak, loose connection to the query |
| Fails to Meet | Does not satisfy the need at all |
You want High or Highest Page Quality and a strong Needs Met score. One without the other is a half-built page.
What earns the Lowest rating
A page drops to Lowest when it is harmful, deceptive or untrustworthy, when its purpose is unclear, when the Main Content is auto-generated with no added value, when it exists mainly to make money with no user benefit, or when the site has a strongly negative reputation. On a YMYL topic, missing E-E-A-T alone can be enough.
What is YMYL, and does it apply to you?
YMYL stands for "Your Money or Your Life". It is any content that could affect a person's health, safety, financial stability or wellbeing, and Google holds it to a far higher quality bar.
As of September 2025, the YMYL topics are:
- Health or safety: medical, drugs, dangerous activities.
- Financial security: money, taxes, investments, major purchases.
- Government, civics and society: including election and voting information (added in 2025).
Even if your core topic is not YMYL, individual pages can be. A "best space heater" roundup touches safety. A "how to invest" post touches finance.
When a page edges into YMYL, raise the E-E-A-T on it.
What the guidelines mean for your SEO in 2026
The QRG is not abstract. It is a checklist for the kind of content Google's systems are built to reward. Here is how I apply it.
Prove experience with evidence
Original screenshots, your own data, specific dated results. This is the highest-leverage change most sites can make, and it is exactly what raters are told to reward.
Use AI as a tool, not the author
Research, outline and draft with it if you like, but add real oversight, judgement and value. Ship nothing that is thin, generic or unchecked.
Cut the filler
Delete any paragraph that only pads word count. The guidelines call filler out by name.
Build the trust signals
HTTPS, real author bylines with a bio and schema, a proper About page, visible contact info and clear policies. Trust is the foundation of the whole framework.
Match intent and keep it fresh
Check the top results before writing so your format matches the query, and refresh important pages so they do not go stale.
None of this is a trick. It is technical and on-page SEO done to the standard Google literally wrote down.
Where can you read the official guidelines?
Google hosts the full document publicly. You can read the current version here: Search Quality Rater Guidelines (official PDF).
It is long, but worth skimming at least once. The rating examples in the back half are the most useful part, because they show real pages scored and explained.
Want your site to actually clear Google's quality bar?
The Quality Rater Guidelines describe the target; hitting it is the work. I audit E-E-A-T, trust signals, intent and technical health, then fix what is holding a site below the line, especially after a core update knocks it down.
See technical SEOFinal take
The Quality Rater Guidelines are the clearest public statement of what Google means by quality. Read the way Google intends, they are not a rulebook to game. They are a description of a genuinely good page.
Build real experience into your content, earn trust, cut the filler, and treat AI as an assistant rather than a ghostwriter.
Do that, and you are aligned with the standard the whole ranking system is tuned to reward, in classic search and in AI answers alike.
Common questions
What are Google's Quality Rater Guidelines?
They are a 182-page manual Google gives to trained human contractors who score real search results on quality and relevance. The guidelines define E-E-A-T, YMYL, and the rating scales. The public version tells SEOs exactly what Google considers a high-quality page.
Do quality raters directly affect my Google rankings?
No. Raters never change any individual site's ranking. Their scores are feedback that Google uses to test and train its ranking algorithms at scale. So the guidelines describe the target Google's systems are tuned toward, not a manual switch on your site.
Does Google penalize AI-generated content?
Not for being AI-generated. The guidelines say using AI tools alone does not decide the rating. Content with little effort, originality or added value gets the Lowest rating, whether a human or an AI wrote it. AI used well, with real oversight and value, is fine.
What is E-E-A-T in the guidelines?
E-E-A-T stands for Experience, Expertise, Authoritativeness and Trust, the signals raters use to judge quality. Trust is the most important; a page can show real expertise and still score low if it is not trustworthy. Experience, first-hand proof you did the thing, is the newest and highest-leverage signal.
What is YMYL content?
YMYL ("Your Money or Your Life") is content that could affect a person's health, safety, financial security or wellbeing. Google holds it to a much higher quality bar. As of September 2025, YMYL also covers government, civics and society topics, including election and voting information.
What is the latest version of the Quality Rater Guidelines?
The current version was published on 11 September 2025 and is still active in 2026. It is a 182-page PDF that Google hosts publicly. Google updates it periodically, most recently to add AI Overview rating examples and expand the YMYL definition.
What is Main Content in the Quality Rater Guidelines?
Main Content (MC) is the part of a page that achieves its purpose, the article, the product, the tool. Raters weigh its quality and E-E-A-T most heavily. The rest is Supplementary Content (menus, sidebars) and Ads. A page needs a satisfying amount of high-quality MC to rate well.
When did Google add Experience to E-A-T?
Google added the extra "E" for Experience on 15 December 2022, turning E-A-T into E-E-A-T. It captures first-hand knowledge, such as actually using a product or visiting a place. Experience is now often the highest-leverage of the four signals.
SEO Specialist and product builder with 10+ years in search. The notes come from the work, not the theory.