I was confused too. It seems the openresolverproject link is reporting more than just open resolvers. Those are active nameservers. I checked two nameserves

I was confused too. It seems the openresolverproject link is reporting more than just open resolvers. Those are active nameservers. I checked two nameserves I had set up at my previous dayjob and was surprised they were on the list. I then checked them manually with dig and found they were in fact not open. Confirmed with this tool: http://dns.measurement-factory.com/cgi-bin/openresolvercheck.pl http://dns.measurement-factory.com/cgi-bin/openresolvercheck... I think the RCODE is important. I also checked 8.8.8.8 but got a result I wasn't expecting.