fallback.denit.net has no NS records.
NS records for this zone are defined at denit.net.
NS records for this zone are defined at denit.net.
Question and response
Question
dig fallback.denit.net. NS
Answer
The response has no answer records.
Authority
denit.net. 3480 SOA ns1.masterdns.nl. hostmaster.denit.net. 2026012803 14400 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0