DNScaster sports the ability to make automated updates at your domain registrar on your behalf. Two key types of updates are supported: delegation updates and glue record updates.
The list of nameserver names that a domain is pointed to is called its delegation. It’s the list of nameservers that are responsible for DNS queries for that particular domain. For instance,
example.com might be pointed (delegated) to
Typically this is a set and forget operation. It is usually required when changing DNS providers, such as migrating into DNScaster. It would also need to be revisited if adding or removing a nameserver.
To make migration easier, DNScaster can perform these updates for you on supported registrars. Any domain and registrar may be used with DNScaster. If the registrar doesn’t support automatic updates, delegation updates will merely need to be performed manually. In all cases DNScaster will show you the current delegation status to help identify if any updates are needed.
Delegation updates may be enabled or disabled on a per-domain basis.
When enabled, DNScaster will also automatically update domain delegations anytime a nameserver name is added, removed, or renamed.
Glue records, also called nameserver registrations, connect a nameserver name, such as
ns1.example.com, to its IP addresses (both IPv4 and IPv6).
Glue records are only required if your domain is delegating to itself using a vanity name. For instance,
example.com would be delegated to
ns2.example.com. The key idea is that
example.com is pointed to nameservers that are themselves subdomains of
If a vanity name is in use, but points to a different domain, glue records are not required. That is, if
example.org is delegated to
ns2.example.com, no glue record is needed.
When glue records are required, DNScaster will automatically manage these glue record updates for you. Automatic updates will be performed anytime a nameserver name or instance is added, removed, or experiences an IP change.
Glue record updates must be enabled for domains that use themselves as a vanity name, but not for domains that use a different domain as a vanity name. Accordingly, the base domain for vanity names must use a supported registrar. All other domains may be registered with any registrar.