web7.pimec.net has no CNAME records.
Question and response
Question
dig web7.pimec.net. NS
Answer
The response has no answer records.
Authority
pimec.net. 10800 SOA dns01.pimec.net. dominis.pimec.net. 1616575078 10800 3600 604800 38400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0