Obtaining certificate chain for calma.unibo.it, one moment while we download the calma.unibo.it certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for calma.unibo.it failed
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We could not load the certificate for calma.unibo.it, 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.