ns1.superloop.com has no NS records.
NS records for this zone are defined at superloop.com.
NS records for this zone are defined at superloop.com.
Question and response
Question
dig ns1.superloop.com. NS
Answer
The response has no answer records.
Authority
superloop.com. 14400 SOA ns-215.awsdns-26.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0