BT Labs: verify a certificate, see who it has tested
BT Labs operates no public certificate lookup; nothing printed on one of its reports can be checked independently.
How BT Labs results count on PepAssure
BT Labs certificates reach PepAssure as vendor uploads or from a public index. Once a member of our team has confirmed the purity figure from the document, each counts at half weight (0.5) in the Purity and CoA Verification pillars, and a vendor whose only evidence is this class is capped at 85. The vendor chose which batch to send, which is why it never carries the weight of a blind buy.
Full rules on the methodology page.
Vendors with the most BT Labs results on file
No vendor results on file yet.
A count is not a grade: it shows how much BT Labs evidence we hold for each vendor. The results themselves, with dates and links to the lab’s copy, are on each vendor’s page.
Other recognized labs
Counts regenerate hourly. “Recognized” describes whether a report can be checked by anyone holding it, not the lab’s accreditation or accuracy. Wrong or missing information about this lab: corrections.