Apex domains cannot have CNAME records.
Question and response
Question
dig intraffic.ua. NS
Answer
intraffic.ua. 4 NS nsc1.srv53.com.
intraffic.ua. 4 NS nsb3.srv53.org.
intraffic.ua. 4 NS nsa1.srv53.com.
intraffic.ua. 4 NS nsa1.srv53.org.
intraffic.ua. 4 NS nsd4.srv53.com.
intraffic.ua. 4 NS nsc3.srv53.net.
intraffic.ua. 4 NS nsa4.srv53.net.
intraffic.ua. 4 NS nsd4.srv53.net.
intraffic.ua. 4 NS nsb4.srv53.com.
intraffic.ua. 4 NS nsd3.srv53.org.
intraffic.ua. 4 NS nsb4.srv53.net.
intraffic.ua. 4 NS nsc1.srv53.org.
Authority
The response has no authority records.
Additional
nsa1.srv53.com. 4 A 178.32.247.7
nsa1.srv53.org. 4 A 178.32.247.3
nsc1.srv53.com. 4 A 78.27.225.73
nsc1.srv53.org. 4 A 78.27.225.71
nsd3.srv53.org. 4 A 89.184.64.96
nsa1.srv53.com. 4 AAAA 2001:41d0:203:dee4:178:32:247:7
nsa1.srv53.org. 4 AAAA 2001:41d0:203:dee4:178:32:247:3
nsc1.srv53.com. 4 AAAA 2a02:2279:0:1201:78:27:225:73
nsc1.srv53.org. 4 AAAA 2a02:2279:0:1201:78:27:225:71
nsd3.srv53.org. 4 AAAA 2a02:2278:70eb:298:89:184:64:96
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0