Certificate verification
Is this certificate genuine?
Enter its ID, drop in the PDF, or paste the credential file. We'll check the signature, the issuer and whether it is still valid.
The ID is printed on the certificate and at the end of its link.
Signed by the issuer
Each certificate carries an Ed25519 signature from the issuing institute's published key.
Checked live
Keys, revocation lists and expiry are checked at the moment you verify.
Private by design
PDFs are fingerprinted in your browser. The file itself is never uploaded.