title: SSL Certificate error : Invalid CA
body: <p>Can someone explain why this site <a href="https://whatsmychaincert.com/?www.uts.edu.au" rel="nofollow noreferrer">https://whatsmychaincert.com/?www.uts.edu.au</a> gives an error in certificate chain:</p>
  <blockquote>
  <p>An error occurred when building the chain for this certificate.  The certificate might lack necessary meta-data or its certificate authority might be malfunctioning.  Details:</p>
  <ul>
  <li>The chain contains an untrusted certificate without standard CA issuer information (subject = &quot;C=BM, O=QuoVadis Limited, CN=QuoVadis Global SSL ICA G3&quot;; issuer = &quot;C=BM, O=QuoVadis Limited, CN=QuoVadis Root CA 2 G3&quot;; error code = 20)</li>
  </ul>
  </blockquote>
  <p>But if I test the same thing on other verification sites like: <a href="https://www.sslshopper.com/ssl-checker.html" rel="nofollow noreferrer">https://www.sslshopper.com/ssl-checker.html</a> &amp; <a href="https://www.digicert.com/help/" rel="nofollow noreferrer">https://www.digicert.com/help/</a> there are no issues reported ?
  Will appreciate any help here.</p>