Is this true? They claim that they don't keep any logs. Do you have a source?
> How Quad9 protects your privacy?
> When your devices use Quad9 normally, no data containing your IP address is ever logged in any Quad9 system.
Of course they have some kinds of logs. Aggregating resolved domains without logging client IPs is not what the implication of "Quad9 is reselling the traffic logs" seems to be.
I am curious though, do you have any suggestions for alternative DNS that is better?