DNS-O-Matic is a free, open source service offered by OpenDNS, which allows users to distribute and manage their dynamic IP addresses across multiple dynamic DNS providers. It is designed to simplify the process of updating multiple dynamic DNS providers with the same IP address. By using DNS-O-Matic, users can easily keep their domain name pointing to their dynamic IP address without having to manually update each dynamic DNS provider separately. DNS-O-Matic also supports several other services such as, email notifications, advanced logging, and several other features.
Discontinued. They have stopped taking new registrations on the site and are closing it the first quarter of 2019.