Apex domains cannot have CNAME records.
Question and response
Question
dig terryburton.co.uk. NS
Answer
terryburton.co.uk. 3 NS ns2.terryburton.co.uk.
terryburton.co.uk. 3 NS ns2.afraid.org.
terryburton.co.uk. 3 NS ns1.1984hosting.com.
terryburton.co.uk. 3 NS ns2.1984.is.
terryburton.co.uk. 3 NS ns1.terryburton.co.uk.
terryburton.co.uk. 3 NS ns-global.kjsl.com.
Authority
The response has no authority records.
Additional
ns1.1984hosting.com. 3 A 185.42.137.114
ns1.terryburton.co.uk. 3 A 162.13.141.116
ns2.terryburton.co.uk. 3 A 90.155.12.9
ns-global.kjsl.com. 3 A 23.128.97.53
ns1.1984hosting.com. 3 AAAA 2a01:3f0:400:0:0:0:0:36
ns2.terryburton.co.uk. 3 AAAA 2001:8b0:1827:ef43:0:0:9:1
ns-global.kjsl.com. 3 AAAA 2607:7c80:53:0:0:0:0:53
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0