Apex domains cannot have CNAME records.
Question and response
Question
dig betitbet128.com. NS
Answer
betitbet128.com. 5 NS ns-1045.awsdns-02.org.
betitbet128.com. 5 NS ns-702.awsdns-23.net.
betitbet128.com. 5 NS ns-357.awsdns-44.com.
betitbet128.com. 5 NS ns-1549.awsdns-01.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0