How do I register my own name servers (glue records)?
To create your own name servers for a domain registered at Dynadot, please follow these steps:
You can submit either an IPv4 or IPv6 IP address (except .WS domains do not support IPv6 addresses). You can also set multiple IP addresses. Also, please remember to configure your name servers with the corresponding A records.
Glue records associate a hostname with an IP address. They are needed when you want to set your domain's name servers to a hostname that is a subdomain of your domain.
NOTE: Custom domain name servers (glue records) can only be registered at Dynadot if the domain is registered here. If you are trying to register a name server for ns1.mydomain.com, for example, and mydomain.com is registered with a third party, you would not be able to create glue records with Dynadot.From Help Section: Account Management > Domain Settings > How do I register my own name servers...