Apex domains cannot have CNAME records.
Question and response
Question
dig 96.193.82.in-addr.arpa. NS
Answer
96.193.82.in-addr.arpa. 5 NS ns1.ip.net.ua.
96.193.82.in-addr.arpa. 5 NS ns2.ip.net.ua.
Authority
The response has no authority records.
Additional
ns1.ip.net.ua. 4 A 193.0.220.34
ns2.ip.net.ua. 4 A 195.64.148.34
ns1.ip.net.ua. 4 AAAA 2a02:2610:0:70:193:0:220:34
ns2.ip.net.ua. 4 AAAA 2a02:2610:0:70:195:64:148:34
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0