host.icarai-mindnet.com.br has no CNAME records.
Question and response
Question
dig host.icarai-mindnet.com.br. NS
Answer
The response has no answer records.
Authority
icarai-mindnet.com.br. 8993 SOA ns1.icarai-mindnet.com.br. root.host.icarai-mindnet.com.br. 2026030603 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0