dns2.swiftycdn.net has no NS records.
NS records for this zone are defined at swiftycdn.net.
NS records for this zone are defined at swiftycdn.net.
Question and response
Question
dig dns2.swiftycdn.net. NS
Answer
The response has no answer records.
Authority
swiftycdn.net. 60 SOA dns1.swiftycdn.net. ncc.melbicom.net. 2012121215 10800 2400 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0