ip121.ip-51-38-84.eu has no CNAME records.
Question and response
Question
dig ip121.ip-51-38-84.eu. NS
Answer
The response has no answer records.
Authority
ip-51-38-84.eu. 123 SOA dns10.ovh.net. tech.ovh.net. 2025080300 86400 3600 3600000 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0