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