It's secure, fast, and free. This is a no brainer for connecting to the internet, set up at https://developers.cloudflare.com/1.1.1.1/setting-up-1.1.1.1/:

1.1.1.1 is a fast and private way to browse the Internet. It is a public DNS resolver, but unlike most DNS resolvers, 1.1.1.1 is not selling user data to advertisers. The implementation of 1.1.1.1 makes it the fastest resolver out there.