Telecom diagnostic tool
STIR/SHAKEN Identity Header Decoder
Inspect a PASSporT token, review its caller identity and attestation claims, and verify the signing certificate carried by the Identity header.
JWT claims
Signature status
Certificate details
Inspect an Identity header
Paste the complete SIP Identity header or the compact JWT value. The decoder will follow the token's x5u certificate reference when the issuing server permits browser access.
Manual Certificate Chain Input
The certificate server did not permit a browser download. Paste the public certificate chain below to complete local signature verification.