gjn.tempurl.host has no NS records.
NS records for this zone are defined at tempurl.host.
NS records for this zone are defined at tempurl.host.
Question and response
Question
dig gjn.tempurl.host. NS
Answer
The response has no answer records.
Authority
tempurl.host. 900 SOA ns-1651.awsdns-14.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0