Is this yours / do you know how this works? The responses seem pretty good, although one of the three recommended for me is giving invalid data for google.com, and it's giving me the same three servers for several different connections in the USA, some very distant from others.

I have my reservations about blindly using DNS servers without verifying their ownership and control. Consider entering "www.wellsfargo.com" into a browser. If a bogus DNS server returned a hacker's server, it could redirect you to wellsfargo.wildcard-cert-based-attacker.com. The people here might figure out that something is awry, but I think we all know people that would not catch it. Of course this is possible in theory even without the DNS server operator being malicious, but it's considerably more difficult.