Summary
ns1.shop-service.at has one IP number , but the reverse is
ns9.ns14.de.
ns1.twt.de,
ns1.q4m.de,
ns1.gdns.de,
ns1.xnos.de,
ns1.nicu.de and at least 100 other hosts point to the same IP.
media18.eu,
sxbill.com,
ecambio.es,
sx-bill.net,
pornsump.net and at least 63 other hosts use this as a nameserver.
shop-service.at is delegated to two nameservers, however both delegated nameservers are missing in the zone. All nameservers are at
schlundtech.de. They are on different IP networks.
ns1.shop-service.at is hosted on a server in Germany even though the hostname implies Austria.