Every time a recruiter uses PageUp’s Skills Matching, an AI model is making a judgment call: does this candidate’s experience align with what this role requires?
That judgment influences who gets seen, who gets shortlisted, and who gets hired. It’s one of the most consequential moments in the whole hiring process.Â
For something so important, we felt that just saying our AI is fair, wasn’t enough. We needed to be able to prove it.Â
So we got it independently verified.
PageUp has completed an external AI bias audit of our Skills Matching feature, conducted by Warden AI, a specialist third-party auditor, that evaluates whether AI used in hiring is fair, consistent, and free from discriminatory bias.
The audit tested candidate profiles across sex, race/ethnicity, and intersectional combinations of both, using two independent bias-detection techniques across a large sample. The results: Skills Matching came back clear in every dimension tested.

You can see the full results for yourself here.
What is Skills Matching?
Skills Matching is part of Paige, PageUp’s agentic AI recruiting assistant. It works by extracting the required skills from your Job Ad or Position Description, and assessing each applicant individually against the same criteria. The result is a fit classification for every candidate, from Excellent Match to Not a Match, with full transparency into the reasons why.
What this means for your organization
For DEI and TA leaders:Â
If not implemented carefully, AI shortlisting tools can inadvertently undermine diversity goals. Not through intent, but through bias baked into how models are trained and what they optimiseoptimize for. This audit is independent evidence that Skills Matching isn’t doing that. The same criteria, applied consistently, regardless of who the candidate is.
For legal and compliance teams
Warden’s methodology is designed to align with emerging AI regulation globally. Having an independent, documented, monthly audit trail puts PageUp customers in a much stronger position as those obligations come into force.
For hiring managersÂ
The match scores that Skills Matching surfaces are now independently verified to be based on skills and experience alone. When you act on a shortlist, you can do so with confidence that the ranking reflects genuine fit, not demographic signals the model should never have used in the first place.
It doesn’t stop here
This isn’t a one-off snapshot taken to produce a certificate. The audit runs monthly, so as PageUp’s AI evolves, the assurance keeps pace. Responsible AI development isn’t a badge you earn once. It’s something you have to keep demonstrating. This is how we’re doing it.
Want to know more? Explore the AI Assurance Dashboard or see Skills Matching in action.Â
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