SourkenHow it works
How Sourken checks a page
Every label comes from the same steps, and every verdict comes with the quotes and links behind it, so you can check our work.
Find the claims
Sourken reads the page and lists each thing it states as fact: what a product does, what a law requires, what research shows. Opinions and first-hand stories are labelled as such and never scored.
Gather the evidence
For each claim, it searches official government sources and trusted standards bodies on an approved list, and research databases of published studies.
Check every claim
Each claim is compared with the source text itself. A verdict only stands if its supporting quote is found word for word in the source; if not, the claim is marked as having no evidence.
Score what can be checked
The Sourken Score is the share of checkable claims that hold up, out of 100. Claims with no evidence either way are counted separately, so vague pages can't look better than they are.
What the labels mean
- Strong evidenceOfficial sources back what the page claims.
- Mixed evidenceSome claims hold up and some don't, or only in part.
- Limited evidenceMost claims aren't backed by official sources.
- Not enough evidence yetToo few checkable claims to judge.
Rules we hold ourselves to
- No one can pay for a better label, score or position.
- A label describes the evidence behind a page's claims, not the business.
- Every verdict shows its quotes and sources.
- Every label is dated; after 90 days it says it's aging, and anyone can check the page again.
- Old checks are kept, so a page's history shows whether its claims got better or worse.
- Results can be wrong: we show our sources so you can judge for yourself.
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