srvweb.infolix.fr has no CNAME records.
Question and response
Question
dig srvweb.infolix.fr. NS
Answer
The response has no answer records.
Authority
infolix.fr. 1800 SOA ns1.infolix.fr. root.infolix.fr.infolix.fr. 2026022381 43200 3600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0