*.dortheblom.dk has one IP number , which is the same as for dortheblom.dk, but the reverse is srv106.one.com. 3ku.de, lks.se, b612.se, fubbi.dk, 00100.dk and at least 100 other hosts point to the same IP. dortheblom.dk is delegated to two nameservers, however one extra nameserver is listed in the zone. All nameservers are at b-one.nu. Two of them are on the same IP network. Incoming mail for dortheblom.dk is handled by two mailservers at one.com. They are on the same IP network. *.dortheblom.dk is hosted on a server in Denmark.