Apex domains cannot have CNAME records.
Question and response
Question
dig trade. NS
Answer
trade. 5 NS c.nic.trade.
trade. 5 NS a.nic.trade.
trade. 5 NS ns2.dns.nic.trade.
trade. 5 NS ns3.dns.nic.trade.
trade. 5 NS b.nic.trade.
trade. 5 NS ns1.dns.nic.trade.
Authority
The response has no authority records.
Additional
a.nic.trade. 172519 A 37.209.192.10
b.nic.trade. 172519 A 37.209.194.10
c.nic.trade. 172519 A 37.209.196.10
ns1.dns.nic.trade. 145314 A 156.154.144.165
ns2.dns.nic.trade. 145314 A 156.154.145.165
ns3.dns.nic.trade. 145314 A 156.154.159.165
a.nic.trade. 172519 AAAA 2001:dcd:1:0:0:0:0:10
b.nic.trade. 172519 AAAA 2001:dcd:2:0:0:0:0:10
c.nic.trade. 172519 AAAA 2001:dcd:3:0:0:0:0:10
ns1.dns.nic.trade. 145314 AAAA 2610:a1:1071:0:0:0:0:a5
ns2.dns.nic.trade. 145314 AAAA 2610:a1:1072:0:0:0:0:a5
ns3.dns.nic.trade. 145314 AAAA 2610:a1:1073:0:0:0:0:a5
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0