Apex domains cannot have CNAME records.
Question and response
Question
dig uconnectlabs.com. NS
Answer
uconnectlabs.com. 5 NS ns-1344.awsdns-40.org.
uconnectlabs.com. 5 NS ns-1803.awsdns-33.co.uk.
uconnectlabs.com. 5 NS ns-83.awsdns-10.com.
uconnectlabs.com. 5 NS ns-929.awsdns-52.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0