ixc.conecta.psi.br has no CNAME records.
Question and response
Question
dig ixc.conecta.psi.br. NS
Answer
The response has no answer records.
Authority
conecta.psi.br. 300 SOA ns1.conecta.psi.br. noc.conecta.psi.br. 2025120302 3600 900 1209600 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0