dns@insidesystems.net is fully-featured free DNS hosting service.
Yes it is, though a small donation would be appreciated.
Signup, make your domain and add your records, then tell your registrar that your name servers are a.ns.insidesystems,net, b.ns.insidesystems.net, c.ns.insidesystems.net and d.ns.insidesystems.net. Easy!
dns@insidesystems.net is easy to use whether you are regular person, an über-geek, or an ISP. In addition to a web-based GUI, it also provides a fully buzzword-compliant, authenticated and secure REST interface to allow simple, reliable integration with your billing and monitoring systems.
We needed this software for ourselves. Some of our clients are ISPs with complex DNS hosting requirements, and it became clear that we'd outgrown our helper scripts and text files. None of the existing DNS services met our needs, so we built a new one. Then we decided to give it away for free.
We support lots of record types. Not just A, CNAME, NS and MX. We also support SRV, TXT and PTR records. Also, we have the aforementioned REST-based interface, for simple and secure integration with pretty much anything.