We pick c.root-servers.net, one of the 13 root servers (1), and ask it about c.gl and learn that gl is delegated to seven name servers (2), so we ask a.nuuk.nic.gl where we learn that c.gl is delegated to two name servers, including dns2.isp-dns.de (3), so we ask that one and get the following answer:
C.gl is a domain controlled by two domain name servers at isp-dns.de. Both are on different IP networks. Incoming mail for c.gl is handled by one mail server at c.gl themselves. We are missing the IP:s of one server: mail.c.gl. C.gl has no IP numbers (. We are missing the IP:s of one server: .
Most of the more than two hundred host names that point to the IP number 0.0.0.0 point only to that ip number (example: 777177.com, cnifs.com and dedinex.com ).
The two name servers dns1 and dns2.isp-dns.de together
There are about a hundred domains that use name server group 2.