<https://www.myantispyware.com/2017/02/08/how-to-remove-questdns-com-chrome-firefox-ie-edge/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.myantispyware.com/2017/02/08/how-to-remove-questdns-com-chrome-firefox-ie-edge/>