"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.", says Cloudflare.
Starting April 1st, Cloudflare has a new, open, offering: a new DNS service that promises fast resolution as well as private requests. Never selling your data, or logs of your information. Going even a step further, they have retained a third party to audit their system, helping to ensure our trust in their service.
Check out more here: https://220.127.116.11