ns2.fast-ns.de has no CNAME records.
Question and response
Question
dig ns2.fast-ns.de. NS
Answer
The response has no answer records.
Authority
fast-ns.de. 30 SOA ns1.fast-ns.de. info.gobbato-it.solutions. 2026011503 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0