Free tool · Google Fact Check + source check
Martech Fact Checker
Paste a claim about marketing tech or AI marketing. You get a % true score, with the parts that hold up in green and the parts that don't in red, plus the sources.
Free. Five source checks per day; published fact-check matches don't count. Takes 2 to 20 seconds.
How the checker works
1. Published fact checks first
We search Google Fact Check Tools, the database behind Google's Fact Check Explorer. If a fact-checking organization has rated a matching claim and the rating is clear, you get their verdict and a link to their article. No AI is involved.
2. A split when the rating is in between
Ratings like Misleading or Half true get split into the words that hold up and the words that don't, using only what the fact-checkers published.
3. One source search when nobody has checked it
Most martech claims have no published fact check, so we run one live web search that favors primary sources: the vendor's own documentation or announcement, the original study, a regulator. Every green or red part links to the source it rests on.
How a fact-checker's rating becomes a percentage
| True, Correct | 95% |
| Mostly true | 80% |
| Half true, Mixture | 50% |
| Misleading, Missing context | 30% |
| Mostly false | 20% |
| False, Fake, Scam | 5% |
With no published rating, the percentage is how much of the claim holds up against the sources found. No cited source, no percentage.
Why most martech claims have no published fact check
Fact-checking organizations spend their time on politics, health and viral images. In October 2026 we searched Google's Fact Check Explorer for 30 marketing and AI terms. Ten returned nothing at all: AI marketing, Google algorithm, Google AI Overviews, HubSpot, Salesforce, email marketing, influencer marketing, Microsoft Copilot, cookie tracking and AI jobs. The only result for "SEO" was about the actor Park Seo Joon.
Where the database does help is AI misuse: deepfake ads, AI-generated images passed off as real, and scam pages that borrow a brand's name. That is why this checker uses the database first and falls back to a source search for everything else.
How to spot a shaky martech stat
- Find the original study. If every article cites another article, the number may have no source at all.
- Check who paid for it. A vendor survey that finds buyers need the vendor's product is a marketing asset, not research.
- Look at the sample and the date. 200 respondents from 2021 say little about AI search in 2026.
- Watch for round numbers with no method, such as "80% of buyers" with no question wording or sample.
- Check the company's own site. Product claims and policy changes should appear in its documentation or announcements.
Fact-check your own launch content
A wrong number in a launch deck or a landing page costs more trust than it ever wins. We review product marketing content for claims that need a source, then rewrite them so buyers and AI assistants can cite you.
Talk to usMore free tools: see how often AI assistants name a brand with Brand Pulse, or check Claude's view of your site with the Claude Visibility Checker. All tools are on the tools page.
Frequently asked questions
How does the Martech Fact Checker work?
It searches Google's Fact Check Tools database first. That database holds fact checks published by organizations such as AFP Fact Check, Snopes, Full Fact and FactCheck.org. If one of them has rated a matching claim, you see their rating and a link to their article. If none has, the checker runs one live web search for primary sources, such as the company's own documentation or the original study, and splits your claim into the parts that hold up and the parts that don't.
What does the percentage mean?
For a claim a fact-checker has rated, the percentage starts from their rating: True 95%, Mostly true 80%, Half true 50%, Misleading or Missing context 30%, Mostly false 20%, False 5%. For other claims it estimates how much of the claim holds up against the sources found. If no source was cited, you get no percentage.
Why do so few marketing claims have a published fact check?
Fact-checking organizations mostly cover politics, health and viral images. When we searched Google's Fact Check Explorer for 30 marketing and AI terms in October 2026, 10 returned nothing at all, including HubSpot, Salesforce, email marketing, influencer marketing, Google's algorithm and AI Overviews. That gap is why this tool adds its own source check.
How many checks can I run?
Five source checks per day. A claim that matches a published fact check, and a claim someone else checked in the last two weeks, is free and does not count toward the five.
Can I share a result on LinkedIn?
Yes. Every result has its own link. The Share on LinkedIn button makes a 1080 by 1350 image of the verdict, with the claim marked green and red. On a phone it opens your share sheet with the image attached. On a computer it saves the image, copies a caption and opens a LinkedIn post for you to attach it to.
Can I quote the verdict as final?
Treat it as a fast first pass. The source check is automated and relies on a single search, and answers can vary. Open the linked sources before you repeat a number in a deck, a post or a sales email.
What do you store?
The claim, the result and a salted hash of your IP address. We keep the result so the share link works, and the hash so the daily limit works. No email or sign-up is needed.