Apex domains cannot have CNAME records.
Question and response
Question
dig business. NS
Answer
business. 5 NS v2n1.nic.business.
business. 5 NS v0n1.nic.business.
business. 5 NS v0n3.nic.business.
business. 5 NS v0n0.nic.business.
business. 5 NS v0n2.nic.business.
business. 5 NS v2n0.nic.business.
Authority
The response has no authority records.
Additional
v0n0.nic.business. 146635 A 65.22.32.38
v0n1.nic.business. 121060 A 65.22.33.38
v0n2.nic.business. 104445 A 65.22.34.38
v0n3.nic.business. 104445 A 161.232.16.38
v2n0.nic.business. 104445 A 65.22.35.38
v2n1.nic.business. 104445 A 161.232.17.38
v0n0.nic.business. 146635 AAAA 2a01:8840:22:0:0:0:0:38
v0n1.nic.business. 121060 AAAA 2a01:8840:23:0:0:0:0:38
v0n2.nic.business. 104445 AAAA 2a01:8840:24:0:0:0:0:38
v0n3.nic.business. 104445 AAAA 2a01:8840:fa:0:0:0:0:38
v2n0.nic.business. 104445 AAAA 2a01:8840:25:0:0:0:0:38
v2n1.nic.business. 104445 AAAA 2a01:8840:fb:0:0:0:0:38
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0