Obtaining certificate chain for escience.grnet.gr, one moment while we download the escience.grnet.gr certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for escience.grnet.gr failed
Sorry, the request for escience.grnet.gr could not be completed...
We could not load the certificate for escience.grnet.gr, 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.