Apex domains cannot have CNAME records.
Question and response
Question
dig babzbling.com. NS
Answer
babzbling.com. 5 NS ns-881.awsdns-46.net.
babzbling.com. 5 NS ns-86.awsdns-10.com.
babzbling.com. 5 NS ns-1864.awsdns-41.co.uk.
babzbling.com. 5 NS ns-1857.awsdns-40.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0