gate07.creolineserver.de has no CNAME records.
Question and response
Question
dig gate07.creolineserver.de. NS
Answer
The response has no answer records.
Authority
creolineserver.de. 2486 SOA ns1.creolineserver.com. noc.creoline.de. 2026022401 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0