Custom DNS Top Level Domains (TLDs)

The Custom DNS service can be used with almost every top level domain (TLD) name.

As of November 17, 2004, the following TLDs are successfully working with our system:

All other domains in the ICANN root servers (including country TLDs and the new TLDs) should work fine. In fact, it is easier to list the domains with which Custom DNS can not be used.

TLDs which do not work with Custom DNS

Custom DNS with a "sub-domain" or hostname

If you have control of the DNS (or if your current DNS provider is willing to add the necessary DNS records) for your domain (which can be any domain in the ICANN root servers), you can also delegate a subdomain for use with the Custom DNS service. This can be done by adding NS records delegating the subdomain to ns1.mydyndns.org, ns2.mydyndns.org, ns3.mydyndns.org, ns4.mydyndns.org, and ns5.mydyndns.org. For example, if you are using BIND and want to use the subdomain "dynamic.yourdomain.com", you would add the following to your zone file:

dynamic.yourdomain.com. IN NS ns1.mydyndns.org.
dynamic.yourdomain.com. IN NS ns2.mydyndns.org.
dynamic.yourdomain.com. IN NS ns3.mydyndns.org.
dynamic.yourdomain.com. IN NS ns4.mydyndns.org.
dynamic.yourdomain.com. IN NS ns5.mydyndns.org.