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