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