_spf.kinghost.com.br has no CNAME records.
Question and response
Question
dig _spf.kinghost.com.br. NS
Answer
The response has no answer records.
Authority
kinghost.com.br. 722 SOA dns1.kinghost.com.br. abuse.kinghost.com.br. 2023111801 3600 600 86400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0