spf-hkbnmail.hkbn.net has no NS records.
NS records for this zone are defined at hkbn.net.
NS records for this zone are defined at hkbn.net.
Question and response
Question
dig spf-hkbnmail.hkbn.net. NS
Answer
The response has no answer records.
Authority
hkbn.net. 3600 SOA ns1.hkbn.net. sysadm.ns1.hkbn.net. 2026032301 1800 900 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0