1.1.1.1 Public DNS Resolver

Unfortunately, by default, DNS is usually slow and insecure. Your ISP, and anyone else listening in on the Internet, can see every site you visit and every app you use — even if their content is encrypted. Creepily, some DNS providers sell data about your Internet activity or use it to target you with ads.

Given the current state of affairs, Cloudflare created a DNS resolver with your privacy and security in mind. Cloudflare, in partnership with APNIC, runs the 1.1.1.1 public resolver, a recursive DNS service that values user privacy and security. DNS requests sent to our public resolver are sent over a secure channel, significantly decreasing the odds of any unwanted spying or man in the middle attacks.

Cloudfare's full privacy policy: https://developers.cloudflare.com/1.1.1.1/privacy/public-dns-resolver/

It should be noted that Cloudfare also has Family-friendly versions that also filter domains for malware and/or adult content.

DNS Performance metrics are captured periodically here https://www.dnsperf.com/#!dns-resolvers