Published on 7 July 2026

Online Certificate Status Protocol (OCSP)

The Swiss Government PKI's OCSP (online certificate status protocol) is used to check the status of an issued certificate.

• General information

  The Swiss government offers a rule-compliant OCSP certification service: RFC 6960 – X.509 Internet Public Key Infrastructure Online Certificate Status Protocol – OCSP (ietf.org).

  The verification address (URL) is contained within the certificate, in the attribute “authority information access (AIA)”.