We pick h.root-servers.net, one of the 13 root servers (1), and ask it about razeni.md and learn that md is delegated to six name servers (2), so we ask ns-ext.isc.org where we learn that razeni.md is delegated to two name servers, including ns2.host-md.net (3), so we ask that one and get the following answer:
Razeni.md is a domain controlled by two domain name servers at host-md.net having a total of four IP numbers. Some of them are on the same IP network. Incoming mail for razeni.md is handled by one mail server at razeni.md themselves having a total of two IP numbers. Both are on different IP networks. Razeni.md has two IP numbers (217.26.147.27, 2a02:fd0:4:1::27). Both are on different IP networks.
All of the several hundred of domains that use the primary name server ns1.host-md.net use name server group 1 (example: globus.md, plastics-group.md and ddcomputer.md ). Worth noting is that all of the domains that use name server group 1 use the primary name server ns1.host-md.net.
The two name servers ns1 and ns2.host-md.net together
There are several hundred of domains that use name server group 1.
