casa.frederick.eti.br has no NS records.
NS records for this zone are defined at frederick.eti.br.
NS records for this zone are defined at frederick.eti.br.
Question and response
Question
dig casa.frederick.eti.br. NS
Answer
The response has no answer records.
Authority
frederick.eti.br. 1800 SOA michelle.ns.cloudflare.com. dns.cloudflare.com. 2396955420 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0