docks05.rzone.de has one IP number , which also has a corresponding reverse pointer. ide.de, 4-f.de, 2vd.de, xlt.de, d-b.at and at least 100 other hosts use this as a nameserver. rzone.de is a domain controlled by four nameservers at rzone.de themselves. Two of them are on the same IP network. Incoming mail for rzone.de is handled by one mailserver at webgods.de. docks05.rzone.de is hosted on a server in Germany.