Apex domains cannot have CNAME records.
Question and response
Question
dig intra2net.com. NS
Answer
intra2net.com. 5 NS ns1.intra2net.com.
intra2net.com. 5 NS ns2.intra2net.com.
Authority
The response has no authority records.
Additional
ns1.intra2net.com. 5 A 62.113.219.226
ns2.intra2net.com. 5 A 185.101.95.146
ns1.intra2net.com. 5 AAAA 2a00:f48:2000:102c:0:0:3:2
ns2.intra2net.com. 5 AAAA 2a06:7f80:9:1:0:0:3:2
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0