Obtaining certificate chain for amsterdamunited.org, one moment while we download the amsterdamunited.org certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for amsterdamunited.org failed
Sorry, the request for amsterdamunited.org could not be completed...
We could not load the certificate for amsterdamunited.org, 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.