dns2.lon.datapipe.net has no CNAME records.
Question and response
Question
dig dns2.lon.datapipe.net. NS
Answer
The response has no answer records.
Authority
lon.datapipe.net. 5 SOA ns1.datapipe.net. hostmaster.datapipe.net. 2020012105 10800 3600 604800 5
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0