Obtaining certificate chain for portal.tuad.ac.jp, one moment while we download the portal.tuad.ac.jp certificate and related intermediate certificates...
Revocation check via OCSP and CRL for portal.tuad.ac.jp failed
Sorry, the request for portal.tuad.ac.jp could not be completed...
We could not load the certificate for portal.tuad.ac.jp
, it might not exist or we could not reach the server, complete the TLS handshake, etc.
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.