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