Apex domains cannot have CNAME records.
Question and response
Question
dig 0x2a-dc.com. NS
Answer
0x2a-dc.com. 5 NS ns2.0x2a.com.ua.
0x2a-dc.com. 5 NS ns1.0x2a.com.ua.
Authority
The response has no authority records.
Additional
ns1.0x2a.com.ua. 5 A 91.211.116.5
ns2.0x2a.com.ua. 5 A 162.55.85.205
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0