dns.sadecehosting.net has no CNAME records.
Question and response
Question
dig dns.sadecehosting.net. NS
Answer
The response has no answer records.
Authority
sadecehosting.net. 3299 SOA dns.sadecehosting.net. hostmaster.sadecehosting.net. 1902133378 43200 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0