ns1.studcom.ch has one IP number , via cname to robotns3.second-ns.com , which also has a corresponding reverse pointer. ns02.de, ns4.xbe.ch, ns3.7bp.de, ns4.ang.de, ns4.mfits.de and at least 40 other hosts point to the same IP. stephanharsch.com use this as a nameserver. studcom.ch is delegated to three nameservers, however all three delegated nameservers are missing in the zone. All nameservers are at pcnet.ch. Two of them are on the same IP network. studcom.ch has one IP number. ns1.studcom.ch is hosted on a server in Germany even though the hostname implies Switzerland.