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