caen-019.normhost.net has no CNAME records.
Question and response
Question
dig caen-019.normhost.net. NS
Answer
The response has no answer records.
Authority
normhost.net. 6647 SOA dns13.ovh.net. tech.ovh.net. 2025091501 86400 3600 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0