Obtaining certificate chain for www4.dcu.ie, one moment while we download the www4.dcu.ie certificate and related intermediate certificates...

Revocation check via OCSP and CRL for www4.dcu.ie failed

Sorry, the request for www4.dcu.ie could not be completed...

We could not load the certificate for www4.dcu.ie, it might not exist or we could not reach the server, complete the TLS handshake, etc.

Check the revocation status for another website

Created by Paul van Brouwershaven
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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.