Obtaining certificate chain for rl01.gai.rug.nl, one moment while we download the rl01.gai.rug.nl certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for rl01.gai.rug.nl, one moment while we re-check the rl01.gai.rug.nl certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for rl01.gai.rug.nl failed
Sorry, the request for rl01.gai.rug.nl could not be completed...
We could not load the certificate for rl01.gai.rug.nl, 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.