Apex domains cannot have CNAME records.
Question and response
Question
dig studio. NS
Answer
studio. 5 NS v0n1.nic.studio.
studio. 5 NS v2n1.nic.studio.
studio. 5 NS v0n0.nic.studio.
studio. 5 NS v2n0.nic.studio.
studio. 5 NS v0n2.nic.studio.
studio. 5 NS v0n3.nic.studio.
Authority
The response has no authority records.
Additional
v0n0.nic.studio. 162365 A 65.22.28.3
v0n1.nic.studio. 160334 A 65.22.29.3
v0n2.nic.studio. 160334 A 65.22.30.3
v0n3.nic.studio. 162365 A 161.232.14.3
v2n0.nic.studio. 136406 A 65.22.31.3
v2n1.nic.studio. 160334 A 161.232.15.3
v0n0.nic.studio. 162365 AAAA 2a01:8840:1e:0:0:0:0:3
v0n1.nic.studio. 160334 AAAA 2a01:8840:1f:0:0:0:0:3
v0n2.nic.studio. 160334 AAAA 2a01:8840:20:0:0:0:0:3
v0n3.nic.studio. 162365 AAAA 2a01:8840:f8:0:0:0:0:3
v2n0.nic.studio. 136406 AAAA 2a01:8840:21:0:0:0:0:3
v2n1.nic.studio. 160334 AAAA 2a01:8840:f9:0:0:0:0:3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0