ns2.ghostdns.de has no CNAME records.
Question and response
Question
dig ns2.ghostdns.de. NS
Answer
The response has no answer records.
Authority
ghostdns.de. 5537 SOA ns1.ghostdns.de. dnsmaster.ghostnet.de. 2017062101 10800 1800 604800 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0