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