The NS record
The NS (nameserver) record returns the nameservers responsible for the subdomain.
Example
Here, we query for NS
records of the domain example.com
.
The result is two nameservers underneath iana-servers.net
.
The IPv4 and IPv6 addresses of these two nameservers are also returned in the Additional section of the response.
$ dog NS example.com NS example.com. 23h59m06s "a.iana-servers.net." NS example.com. 23h59m06s "b.iana-servers.net." A a.iana-servers.net. 29m07s + 199.43.135.53 AAAA a.iana-servers.net. 16m05s + 2001:500:8f::53 A b.iana-servers.net. 16m09s + 199.43.133.53 AAAA b.iana-servers.net. 29m07s + 2001:500:8d::53