We pick c.root-servers.net, one of the 13 root servers (1), and ask it about akting.es and learn that es is delegated to seven name servers (2), so we ask a.nic.es where we learn that akting.es is delegated to two name servers, including arquimides.centrored.net (3), so we ask that one and get the following answer:
Akting.es is a domain controlled by two domain name servers at centrored.net. Both are on the same IP network. Incoming mail for akting.es is handled by seven mail servers at akting.es themselves having a total of 57 IP numbers. There are 20 duplicated IP numbers. Some of them are on the same IP network. Akting.es has one IP number (213.4.113.57), but the reverse is galileo.centrored.net.