ns2.tmag.de has no CNAME records.
Question and response
Question
dig ns2.tmag.de. NS
Answer
The response has no answer records.
Authority
tmag.de. 600 SOA ns1.namesserver.net. dnsadmin.tmag.de. 2025100901 21600 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0