FreeDNS is a service that provides free domain name system (DNS) hosting. DNS is a system used to translate human-readable domain names (like example.com) into IP addresses (like 192.0.2.1) that computers use to identify each other on the internet. FreeDNS allows users to manage their domain names and map them to the appropriate IP addresses without having to pay for traditional DNS hosting services. This can be useful for individuals or organizations who want to host their own websites, email servers, or other internet services without the cost or complexity of setting up their own DNS infrastructure. FreeDNS providers typically offer a range of features such as domain management, dynamic DNS (DDNS) support, and DNSSEC (Domain Name System Security Extensions) to help secure domain name resolution.