auth2.deteque.com has no NS records.
NS records for this zone are defined at deteque.com.
NS records for this zone are defined at deteque.com.
Question and response
Question
dig auth2.deteque.com. NS
Answer
The response has no answer records.
Authority
deteque.com. 60 SOA auth1.deteque.com. dnsadmin.deteque.com. 1773352378 3600 900 604800 60
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0