dns0.arcanite.ch has no CNAME records.
Question and response
Question
dig dns0.arcanite.ch. NS
Answer
The response has no answer records.
Authority
arcanite.ch. 226 SOA dns0.arcanite-infra.ch. dns.arcanite.ch. 2026030460 21600 900 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0