Apex domains cannot have CNAME records.
Question and response
Question
dig hyp.net. NS
Answer
hyp.net. 5 NS ns3.hyp.net.
hyp.net. 5 NS ns2.hyp.net.
hyp.net. 5 NS ns1.hyp.net.
Authority
The response has no authority records.
Additional
ns1.hyp.net. 5 A 151.249.124.1
ns2.hyp.net. 5 A 192.174.68.10
ns3.hyp.net. 5 A 151.249.126.3
ns1.hyp.net. 5 AAAA 2a01:5b40:ac1:0:0:0:0:1
ns2.hyp.net. 5 AAAA 2001:67c:1bc:0:0:0:0:10
ns3.hyp.net. 5 AAAA 2a01:5b40:ac3:0:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0