Apex domains cannot have CNAME records.
Question and response
Question
dig nic.digital. NS
Answer
nic.digital. 5 NS v2n0.nic.digital.
nic.digital. 5 NS v0n2.nic.digital.
nic.digital. 5 NS v0n1.nic.digital.
nic.digital. 5 NS v0n0.nic.digital.
nic.digital. 5 NS v0n3.nic.digital.
nic.digital. 5 NS v2n1.nic.digital.
Authority
The response has no authority records.
Additional
v0n0.nic.digital. 6095 A 65.22.20.36
v0n1.nic.digital. 27717 A 65.22.21.36
v0n2.nic.digital. 11362 A 65.22.22.36
v0n3.nic.digital. 16382 A 161.232.10.36
v2n0.nic.digital. 6095 A 65.22.23.36
v2n1.nic.digital. 6095 A 161.232.11.36
v0n0.nic.digital. 6095 AAAA 2a01:8840:16:0:0:0:0:36
v0n1.nic.digital. 27717 AAAA 2a01:8840:17:0:0:0:0:36
v0n2.nic.digital. 11362 AAAA 2a01:8840:18:0:0:0:0:36
v0n3.nic.digital. 16382 AAAA 2a01:8840:f4:0:0:0:0:36
v2n0.nic.digital. 6095 AAAA 2a01:8840:19:0:0:0:0:36
v2n1.nic.digital. 6095 AAAA 2a01:8840:f5:0:0:0:0:36
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0