Apex domains cannot have CNAME records.
Question and response
Question
dig nic.ve. NS
Answer
nic.ve. 4 NS ns6.nic.ve.
nic.ve. 4 NS ns4.nic.ve.
nic.ve. 4 NS ns3.nic.ve.
nic.ve. 4 NS ns5.nic.ve.
Authority
The response has no authority records.
Additional
ns3.nic.ve. 4 A 190.9.129.56
ns4.nic.ve. 4 A 190.202.128.43
ns5.nic.ve. 4 A 45.175.22.88
ns6.nic.ve. 4 A 45.175.22.4
ns5.nic.ve. 4 AAAA 2801:18:8800:3:18ba:beff:fe61:d08b
ns6.nic.ve. 4 AAAA 2801:18:8800:1:0:0:0:4
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0