ns4.datapipe.net has no CNAME records.
Question and response
Question
dig ns4.datapipe.net. NS
Answer
The response has no answer records.
Authority
datapipe.net. 1654 SOA ns1.datapipe.net. hostmaster.datapipe.net. 2022020274 10800 3600 604800 14400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0