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