simonsturgeon.uk has no CNAME records.
Question and response
Question
dig simonsturgeon.uk. NS
Answer
The response has no answer records.
Authority
uk. 5275 SOA dns1.nic.uk. hostmaster.nic.uk. 1772584266 7200 900 2419200 10800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0