Health websites for advertising: how to tell a trustworthy publisher from a content farm
Part of Lookalike websites
The short answer
A trustworthy health website shows who runs and funds it, has its articles reviewed by named experts, cites its sources, dates every page when written, reviewed or updated, and corrects errors in public. Advertisers can check each of these on the page in minutes, then use the trusted site as a seed to find similar publishers.
Key takeaways
- MedlinePlus, from the US National Library of Medicine, asks the same questions a buyer should: who runs the site, who pays for it, who reviews it, where its information comes from and how current it is.
- Medical review is only meaningful when the reviewer is named, credentialed for the topic and dated on the page.
- Content farms copy the look of health publishers but not the review: unsigned pages, no sources, no dates and the same article on many domains.
- Health publishers differ by audience and model, so match the publisher type to the brand before matching the topic.
- A trusted seed's review practices are part of its profile; similar sites should share them, not just the subject.
What makes a health website trustworthy for advertisers?
A useful checklist comes from the people who teach patients to judge health information. MedlinePlus (opens in a new tab), run by the US National Library of Medicine, asks readers who runs a site, who pays for it, whether an editorial board of health experts and a content review process exist, where the information comes from, and whether pages show dates when they were written, reviewed or updated. It also says ads should be clearly labeled. Every one of those questions can be answered from a public page, which makes it a practical buying screen.
Search engines apply the same idea. Google's guidance on creating helpful content (opens in a new tab), updated October 5, 2026, says its systems give even more weight to content with strong experience, expertise, authoritativeness and trust on topics that could significantly impact people's health, financial stability or safety, which Google calls Your Money or Your Life topics. For those, it says content must be highly accurate and consistent with established expert consensus.
| Signal | Where to look on the site | What a strong publisher shows | What a weak one shows |
|---|---|---|---|
| Ownership and funding | About page, footer, masthead | A named company or organization, its funding and a way to contact it | No owner named, only a contact form |
| Medical review | Article header or footer, about page | A named reviewer with credentials matching the topic and a review date | "Medically reviewed" with no name, or one reviewer across every specialty |
| Sourcing | Links and reference lists inside articles | Links to studies, clinical guidelines and public health agencies | No sources, or links only to the site's own pages and product pages |
| Dates | Article header | Separate written, reviewed or updated dates, recent on core topics | No dates, or a date that changes on every visit with no visible edits |
| Corrections | Corrections policy page, notes at the end of articles | A public policy and dated notes explaining what changed | Silent edits and no policy anywhere |
How do you check medical review on a health site?
A medical review label is easy to add and easy to fake, so check the person, not the badge. Open three recent articles on different conditions and read the review line on each. The same family physician reviewing dermatology, cardiology and pediatric nutrition in one week is a sign of a label applied in bulk. Google's helpful content guidance warns against deceptive authorship such as made up names or false credentials, which is exactly what a buyer is screening for.
Checking medical review on one health site in five steps
- Find the reviewer's name. Open three recent articles and note who reviewed each one and on what date.
- Match credentials to the topic. A dermatologist reviewing an eczema article fits; a general reviewer across every specialty does not.
- Confirm the person exists. Look the reviewer up in the public register of the licensing body for their state or province. In British Columbia, the College of Physicians and Surgeons of BC directory (opens in a new tab) can be used to verify whether an individual is currently licensed.
- Read the review policy. The about page should say what review means: who reviews, how often and what happens when guidance changes.
- Check the markup if present. Schema.org defines reviewedBy and lastReviewed (opens in a new tab) for web pages, the people who reviewed the content for accuracy and the date of that review; tags that match the visible byline are a good sign.
Which health publishers suit consumer health brands?
Health websites are not one kind of publisher. They differ in who they write for, how they are funded and whether they sell advertising at all. A consumer health brand needs publishers that write for the public, sell ad space and keep editorial separate from sponsors. Government health services, hospitals and medical schools publish trusted health information, but their sites may carry no third party advertising and then cannot be bought.
| Publisher type | Audience | Sells advertising? | Fit for a consumer health brand |
|---|---|---|---|
| Consumer health publishers | The general public researching symptoms and treatment | Where ad supported; check for ads.txt | Strong when medical review and sourcing check out |
| Health sections of news sites | General news readers | Yes, through the news site | Good for awareness; review health coverage separately from the rest of the site |
| Clinician written blogs | Patients of one specialty, such as skin or foot care | Check for ads.txt | Close topical fit; check that sponsored posts are labeled |
| Patient association sites | People living with one condition and their families | Check the site; sponsorship may be the route | Buyable only if it sells space; otherwise a sponsorship may be the only route |
| Professional and clinical journals | Clinicians | Some do | Clinician audience, a poor match for a consumer product |
| Government, hospital and university sites | The public and patients | Check the site; may carry none | Useful as sources and as quality references, not as placements |
Schema.org's MedicalWebPage type includes a medicalAudience property for the intended audience of a page. Where a publisher uses it, it confirms whether a page was written for patients or for clinicians. Where it does not, the language of the articles can show it. Suitability for sensitive health subjects is a separate question, covered in the sexual health content guide and the health news guide.
How do you spot thin health content farms?
Sites built to collect search traffic and resell it to advertisers can target health subjects like any other. Google's spam policies (opens in a new tab) describe scaled content abuse as producing many pages mainly to manipulate search rankings rather than to help people, including pages generated with automation, pages stitched together from other sites, and multiple sites launched to hide the scale of the operation. A health content farm can show each of those patterns.
Signs a health site is a content farm, not a publisher
- Articles carry no author, no reviewer and no date, or a single invented byline signs hundreds of pages.
- The site covers every condition from acne to cancer with articles of the same length and structure.
- Pages cite no studies, guidelines or health agencies, only other pages on the same site.
- A distinctive sentence searched in quotation marks appears word for word on other health domains.
- Ads and sponsored product boxes take more of the screen than the article text.
- The about page names no company, no editorial team and no location.
- Several sites share the same layout, the same articles and the same ad or analytics codes.
One sign on its own is not a verdict. Small clinician blogs sometimes skip dates, and wire style health briefs can appear on respectable news sites. A farm shows several signs together. The made for advertising guide covers the page layout and traffic checks that expose the business model behind a farm.
How do you find health sites similar to a trusted one?
Start from a health site the client already trusts and describe it in two layers. The first is the subject: which conditions, at what depth, for which reader. The second is the review model: who reviews, how sources are cited, how dates and corrections are shown. A lookalike must match both. A site on the same conditions without review is a content farm candidate, not a lookalike.
Candidates come from the seed's own links, from health sections of trusted news sites, and from the clinicians who review for the seed and also write elsewhere. Sites that the seed cites as sources can be institutions without advertising, so they help define quality rather than fill the plan. The lookalike websites guide explains how to search seeds on different themes one theme at a time.
What does a health publisher review look like on a real brief?
Fictional example
A fragrance free skin care brand plans display in British Columbia
An unnamed fictional maker of fragrance free moisturizers for dry and eczema prone skin briefs its agency for display in British Columbia, focused on Vancouver and Victoria, in English. Its trusted seed is a consumer skin health site whose articles are reviewed by named dermatologists, with review dates and reference lists on every page.
The planner profiles the seed: everyday skin conditions explained for the public, dermatologist review, sources from clinical guidelines. Candidates come from the seed's outbound links, the health section of a regional news site and a blog written by one of the seed's reviewers. A provincial health service site cited by the seed is noted as a quality reference but carries no ads.
Review checks thin the list. One skin care site lists a single reviewer across every specialty and no dates, so it leaves with that reason. Another has strong review but most of its pages are product roundups with affiliate links, so it goes to a review list. The regional news site's health section and the dermatologist's blog pass and join the plan with three article URLs each.
How does PlacementGraph keep responsible health publishers in reach?
Frequently asked questions
Does a .org or .gov domain mean a health site is trustworthy?
A .gov site belongs to a US government body, which says who runs it, but such sites may not sell advertising at all. A .org domain can be registered by anyone, so it says little on its own. Judge every site on ownership, review, sources, dates and corrections, whatever its domain ending.
Should a health brand avoid sites that run affiliate product links?
Not automatically. Affiliate links are one way health publishers fund their work. The question is whether the links are labeled and kept apart from the medical content. A site where every article ends in a product roundup is a shopping guide with a health theme, and it should be judged as one.
How recent should a health article's review date be?
There is no single rule. Check whether the publisher states a review cycle and keeps to it, and whether articles were updated after major guideline changes on their topic. A recent review date on core topics, alongside older dates on stable subjects, is a healthy pattern.
Can a health site be trustworthy without a medical reviewer?
Yes, for some kinds of content. Patient stories, fitness diaries and health news reported by journalists may not need clinical review, though they still need sources and dates. Clinical advice on diagnosis or treatment without any named expert behind it deserves extra caution before a brand appears beside it.
Sources
- Evaluating Health Information (opens in a new tab)MedlinePlus, US National Library of Medicine
- Creating helpful, reliable, people-first content (opens in a new tab)Google Search Central, updated October 5, 2026
- MedicalWebPage (opens in a new tab)Schema.org
- SPJ Code of Ethics (opens in a new tab)Society of Professional Journalists
- Spam policies for Google web search (opens in a new tab)Google Search Central
- Directory (opens in a new tab)College of Physicians and Surgeons of British Columbia
Researched and written by PlacementGraph Research. Read how we research, source and update these pages. Corrections: diana@placementgraph.com.