Apex domains cannot have CNAME records.
Question and response
Question
dig freehost.com.ua. NS
Answer
freehost.com.ua. 5 NS gamma.freehost.com.ua.
freehost.com.ua. 5 NS alpha.freehost.com.ua.
freehost.com.ua. 5 NS beta.freehost.com.ua.
freehost.com.ua. 5 NS delta.freehost.com.ua.
Authority
The response has no authority records.
Additional
beta.freehost.com.ua. 5 A 194.0.200.213
alpha.freehost.com.ua. 5 A 46.164.129.76
delta.freehost.com.ua. 5 A 212.83.131.145
gamma.freehost.com.ua. 5 A 213.239.209.142
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0