Obtaining certificate chain for wwwv12.tum.de, one moment while we download the wwwv12.tum.de certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for wwwv12.tum.de, one moment while we re-check the wwwv12.tum.de certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for wwwv12.tum.de failed
Sorry, the request for wwwv12.tum.de could not be completed...
We could not load the certificate for wwwv12.tum.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.