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