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