What Google means by YMYL, and why health and money sites are judged differently

YMYL is short for "Your Money or Your Life", and it's what Google calls a topic where wrong information can cause real damage. The definition doesn't live in a ranking factors list. It sits in the search quality rater guidelines, the document Google publishes for the people it pays to assess how good its results are, last revised on 11 September 2025.

That document says some topics carry "a high risk of harm because content about these topics could significantly impact the health, financial stability, or safety of people, or the welfare or well-being of society" (Google, 2025). Dentists, accountants, gas engineers, electricians and estate agents all publish about topics that fit that description, which is why their sites get measured against a standard a gift shop never has to meet.

The short version: YMYL is Google's term for a topic where inaccurate content could damage someone's health, financial stability or safety, or harm society. Pages on those topics are assessed against Google's strictest quality standard, and the part carrying the most weight is Trust: whether the page is accurate, honest, safe and reliable, and whether it's obvious who stands behind it.

What counts as a YMYL topic?

Potential harm decides it, not the industry on the invoice. Raters are asked to work through four kinds of harm a topic could cause:

• Health or safety. Topics that "could harm mental, physical, and emotional health, or any form of safety such as physical safety or safety online."
• Financial security. Topics that "could damage a person's ability to support themselves and their families."
• Government, civics and society. Topics touching public interest, trust in institutions, elections and voting, and other information about how society runs.
• Other. Anything else that "could hurt people or negatively impact welfare or well-being of society."

Two things about that list catch people out.

The first is that it attaches to the subject, not the sector. Google is explicit that you could build a harmful page about almost anything, "such as the science behind rainbows or shopping for pencils", and that this doesn't make rainbows a YMYL topic. The risk has to be in the subject itself.

The second is that it isn't a yes or no. The guidelines say the assessment "is a spectrum" and suggest thinking of topics as "clear YMYL, definitely not YMYL or something in between". A practice page explaining what happens during a procedure sits at one end. The same practice's page about where to park sits at the other. Most sites in these fields are a mixture, and it's the pages giving information or advice that carry the weight.

When it's genuinely unclear, Google gives raters two questions to settle it. Would a careful person go looking for an expert or a highly trusted source to avoid coming to harm, and could even minor inaccuracies do damage? If so, the topic is likely YMYL. Is it something most people would be content to ask a friend about? Then it probably isn't.

Why Trust does most of the work

E-E-A-T stands for Experience, Expertise, Authoritativeness and Trust, and the four don't count equally. The guidelines put it flatly: "The most important member at the center of the E-E-A-T family is Trust." The other three are described as concepts that support an assessment of it. Google's public documentation says the same thing in fewer words: "Of these aspects, trust is most important" (Google Search Central).

For these topics, Trust has a narrow definition. "Informational pages on clear YMYL topics must be accurate to prevent harm to people and society." Not thorough, not well written. Accurate.

Two consequences follow, and both are unusually concrete for something this abstract.

Reputation gets judged by other people. Raters are told to be sceptical of what a site says about itself, and that "for YMYL topics, the reputation of a website should be judged by what experts in the field have to say". A recommendation from a professional body counts towards that. A quote you chose to put on your own homepage doesn't.

Anonymity is disqualifying. The wording leaves no room: "YMYL pages or websites that handle sensitive data with absolutely no information about the website or content creator should be rated Lowest." A clinical page with no named author and no way to check who wrote it isn't a page with slightly weak signals. It's a page at the bottom of the scale.

Experience and expertise aren't interchangeable here

There's a short section of the guidelines that most summaries skip, and it's the one that settles whose name should be on the page.

Where the purpose of a page on a clear YMYL topic is to give information or advice, "a high level of expertise may be required for the page to be trustworthy". But where the purpose is to describe what something was actually like, first-hand experience can carry it: "Pages that share first-hand life experience on clear YMYL topics may be considered to have high E-E-A-T as long as the content is trustworthy, safe, and consistent with well-established expert consensus."

So a patient writing about recovery and a clinician writing about the procedure are both legitimate, and neither substitutes for the other. What fails is a marketing writer producing the second one under a brand name. When we write in these fields the named author is the client's qualified person, and they review the piece before it goes anywhere. That's slower than the alternative, and it's the version that holds up when somebody checks it.

What this looks like on a UK site

Every one of these industries already has a body deciding who's allowed to practise. Google doesn't run a register, but someone assessing whether a business is what it claims will find one if it's visible. Put the credential where a person can read it, and put it in your structured data with the matching LocalBusiness subtype.

None of that is a tactic. It's already true of the business. What's usually missing is that it's buried in a footer, held on one page nobody links to, or written as marketing copy instead of a number a stranger can look up.

The same logic runs through the rest of the page. Name the person, state what they're qualified in, link the register entry, date anything that changes, and source any claim about health, money or safety to the body that governs it rather than to another blog. A page built that way reads as more careful than its competitors, which is the point.

What the guidelines can and can't tell you

Worth being straight about what this document is, because it gets described as a rulebook.

Quality raters don't move anyone's rankings. Google says so on the second page: "No single rating can directly impact how a particular webpage, website, or result appears in Google Search, nor can it cause specific webpages, websites, or results to move up or down on the search results page." Ratings measure whether the systems are working, and supply examples used to improve them.

So YMYL isn't a setting anyone can flip. It's a written description of what Google is trying to build, set out in more detail than Google usually offers, which makes it the most reliable published account of what a good health or money page looks like. Treat it as a specification rather than a lever.

If your business is on that list

For a regulated business, most of this isn't SEO work in the usual sense. It's making sure the person who actually knows the subject is visibly the person saying it, that claims trace back to a body worth trusting, and that the register you're already on is somewhere a stranger can find in a few seconds. That's slower than publishing more pages, and in these fields it's the part that decides whether the pages do anything at all.

We do this work with practices and firms in regulated industries, and it's the part of our SEO service that takes longest to get right. If you're weighing up who to hire for it, what to ask an SEO agency covers the rest of that decision, and SEO for dentists sets out the medical version in more detail. If you'd rather establish whether search deserves the budget before you spend it, that's what Think First is for, and you can always just tell us what you're trying to grow.