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