Apex domains cannot have CNAME records.
Question and response
Question
dig wi-gate.net. NS
Answer
wi-gate.net. 5 NS ns3.wi-gate.net.
wi-gate.net. 5 NS ns1.wi-gate.net.
wi-gate.net. 5 NS ns2.wi-gate.net.
Authority
The response has no authority records.
Additional
ns1.wi-gate.net. 5 A 61.121.198.46
ns2.wi-gate.net. 5 A 61.121.198.47
ns3.wi-gate.net. 5 A 210.236.251.215
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0