srv28.subnett.io has no NS records.
NS records for this zone are defined at subnett.io.
NS records for this zone are defined at subnett.io.
Question and response
Question
dig srv28.subnett.io. NS
Answer
The response has no answer records.
Authority
subnett.io. 1800 SOA ken.ns.cloudflare.com. dns.cloudflare.com. 2399258784 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0