vps-816bff88.vps.ovh.net has no CNAME records.
Question and response
Question
dig vps-816bff88.vps.ovh.net. NS
Answer
The response has no answer records.
Authority
vps.ovh.net. 43 SOA dns109.ovh.net. tech.ovh.net. 2026022233 86400 3600 3600000 60
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0