ns2.volarehost.com.br has no NS records.
NS records for this zone are defined at volarehost.com.br.
NS records for this zone are defined at volarehost.com.br.
Question and response
Question
dig ns2.volarehost.com.br. NS
Answer
The response has no answer records.
Authority
volarehost.com.br. 1800 SOA curt.ns.cloudflare.com. dns.cloudflare.com. 2395858154 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0