ns2.noez.de has no CNAME records.
Question and response
Question
dig ns2.noez.de. NS
Answer
The response has no answer records.
Authority
noez.de. 988 SOA phil.ns.cloudflare.com. dns.cloudflare.com. 2398560898 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0