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