Amazon Route 53 - Amazon Route 53 is a highly available and scalable DNS web service.
PowerDNS - PowerDNS offers open source DNS software, services, and support.
DNS Made Easy - DNS performance, reliability, and security have never been easier.
dnsmasq - Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
Cloudflare DNS - Install the free app that makes your phone’s Internet more fast, private, and reliable.
Unbound - Unbound is a validating, recursive, and caching DNS resolver.