Obtaining certificate chain for .cdu-niedersachsen.de, one moment while we download the .cdu-niedersachsen.de certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for .cdu-niedersachsen.de failed
Sorry, the request for .cdu-niedersachsen.de could not be completed...
We could not load the certificate for .cdu-niedersachsen.de, 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.