Obtaining certificate chain for irfzurich.kussmaul.ch, one moment while we download the irfzurich.kussmaul.ch certificate and related intermediate certificates...
Revocation check via OCSP and CRL for irfzurich.kussmaul.ch failed
Sorry, the request for irfzurich.kussmaul.ch could not be completed...
We could not load the certificate for irfzurich.kussmaul.ch, it might not exist or we could not reach the server, complete the TLS handshake, etc.
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.