We pick c.root-servers.net, one of the 13 root servers (1), and ask it about superpages.es and learn that es is delegated to seven name servers (2), so we ask a.nic.es where we learn that superpages.es is delegated to three name servers, including ns3.hyp.net (3), so we ask that one and get the following answer:
Superpages.es is a domain controlled by three domain name servers at hyp.net having a total of five IP numbers. Some of them are on the same IP network.
Superpages.es uses the primary name server ns1.hyp.net and the three name servers ns1, ns2 and ns3.hyp.net together, hereafter referred to as "name server group 1".
The primary name server ns1.hyp.net only
All of the several thousand of domains that use the primary name server ns1.hyp.net use name server group 1 (example: marrakbogg.no, danvikfhs.no and bildatabasen.no ). Worth noting is that a third of the domains that use name server group 1 use the primary name server ns1.hyp.net.
The three name servers ns1, ns2 and ns3.hyp.net together
There are several thousand of domains that use name server group 1.
