ns1.wfibra.com.br has no CNAME records.
Question and response
Question
dig ns1.wfibra.com.br. NS
Answer
The response has no answer records.
Authority
wfibra.com.br. 3413 SOA ns1.wfibra.com.br. hamilton.monteiro.wlenet.com.br. 2025120309 3600 3600 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0