artemis.ttd.net has no NS records.
NS records for this zone are defined at ttd.net.
NS records for this zone are defined at ttd.net.
Question and response
Question
dig artemis.ttd.net. NS
Answer
The response has no answer records.
Authority
ttd.net. 7200 SOA minerva.ttd.net. hostmaster.ttd.net. 2017011786 86400 7200 2592000 7200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0