Apex domains cannot have CNAME records.
Question and response
Question
dig nigelbreen.com. NS
Answer
nigelbreen.com. 2 NS ns2.nigelbreen.com.
nigelbreen.com. 2 NS ns1.nigelbreen.com.
Authority
The response has no authority records.
Additional
ns1.nigelbreen.com. 2 A 194.41.115.17
ns2.nigelbreen.com. 2 A 194.41.115.18
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0