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