Lets start.
USA lost DNS "Highness" and provide a free DNS service for public.
sponsors are london & new york police, IBM (which isnt good too) and others
Yeah, DNS providers can log but on Quad9 front page they say "Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy."
But look at
https://quad9.net/#/policy:
What Information Do We Collect?
Temporary Logs
# The temporary logs store the
full IP address of the machine you are using
Permanent Logs
We do keep some
location information (at the city/metro level)
Request domain name, e.g.
www.globalcyberalliance.org
Record type of requested domain, e.g. A (which stands for IPv4 record), AAAA (IPv6 record), NS, MX, TXT, etc.
Transport protocol on which the request arrived, i.e. TCP, UDP, or HTTPS
Client’s AS (autonomous system or ISP), e.g. AS1111
User’s geolocation information: i.e. geocode, region ID, city ID, and metro code, type of IP address.
Response code sent, e.g. SUCCESS, SERVFAIL, NXDOMAIN, etc.
Absolute arrival time in seconds
Name of the machine that processed this request, e.g. quad9dns001
Quad9 target IP to which this request was addressed, e.g. one of our anycast IP addresses (no relation to the user’s IP)
They store your whole behavior
Not very privacy isnt it