Apex domains cannot have CNAME records.
Question and response
Question
dig emplot.net.ua. NS
Answer
emplot.net.ua. 5 NS ns.emplot.net.ua.
emplot.net.ua. 5 NS ns.secondary.net.ua.
emplot.net.ua. 5 NS ns2.emplot.net.ua.
Authority
The response has no authority records.
Additional
ns.emplot.net.ua. 4 A 193.110.107.2
ns.secondary.net.ua. 4 A 195.149.112.1
ns2.emplot.net.ua. 4 A 194.246.117.6
ns.secondary.net.ua. 4 AAAA 2001:67c:2ac0:0:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0