ns.fregat.net has no CNAME records.
Question and response
Question
dig ns.fregat.net. NS
Answer
The response has no answer records.
Authority
fregat.net. 5212 SOA ns.fregat.net. hostmaster.fregat.net. 2026030404 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0