a.dns.it has no NS records.
NS records for this zone are defined at dns.it.
NS records for this zone are defined at dns.it.
Question and response
Question
dig a.dns.it. NS
Answer
The response has no answer records.
Authority
dns.it. 900 SOA dns.nic.it. hostmaster.nic.it. 2026022500 14400 1800 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0