See: https://www.ssllabs.com/ssltest/analyze.html?d=niburu.nl
Self-signed: https://www.sslcertificaten.nl/SSLCheck?domain=niburu.nl
The certificate is self-signed. Users will receive a warning when accessing this site unless the certificate is manually added as a trusted certificate to their web browser. You can fix this error by buying a trusted SSL certificate → http://www.sslshopper.com/ssl-checker.html#hostname=niburu.nl
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