core2.fmt1.ntfo.org has no NS records.
NS records for this zone are defined at fmt1.ntfo.org.
NS records for this zone are defined at fmt1.ntfo.org.
Question and response
Question
dig core2.fmt1.ntfo.org. NS
Answer
The response has no answer records.
Authority
fmt1.ntfo.org. 86400 SOA ntfo.org. postmaster.ntfo.org. 2026011700 86400 14400 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0