A child nameserver — also called a glue record or private nameserver — is a nameserver named under your own domain, such as ns1.your-domain.com. Resellers use them so their customers see the reseller's brand instead of the hosting company's.
For ns1.your-domain.com to work, the registry needs to know its IP address. That is what registering a child nameserver does.
What you need
- The hostname you want, for example
ns1.your-domain.comandns2.your-domain.com. - The IP address of the server that will answer DNS for each of them. Your hosting company gives you these.
- A DNS server at that IP that is set up to answer for your zones.
Have them registered
Child nameservers are registered by our team rather than from the control panel.
- Open Create a ticket in your control panel.
- Choose the domain as the Related service.
- List each hostname with its IP address, one per line.

Choosing the related service saves us a round trip. - Click Open ticket. We reply on the ticket once the registry has accepted them.
Once they are registered, you can use them as nameservers — on this domain or on any other — with Change your domain's nameservers.
Note
On .EU and .SX, every child nameserver you create is also added as a nameserver of that domain, and counts toward its maximum. See Nameserver rules by extension.