sp2.novaoi.com.br has no NS records.
NS records for this zone are defined at novaoi.com.br.
NS records for this zone are defined at novaoi.com.br.
Question and response
Question
dig sp2.novaoi.com.br. NS
Answer
The response has no answer records.
Authority
novaoi.com.br. 86400 SOA ns1.srv.clusterdns.top. noc.weezy.gmail.com. 2026022200 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0