Apex domains cannot have CNAME records.
Question and response
Question
dig wtf. NS
Answer
wtf. 5 NS v2n1.nic.wtf.
wtf. 5 NS v0n3.nic.wtf.
wtf. 5 NS v0n0.nic.wtf.
wtf. 5 NS v0n2.nic.wtf.
wtf. 5 NS v0n1.nic.wtf.
wtf. 5 NS v2n0.nic.wtf.
Authority
The response has no authority records.
Additional
v0n0.nic.wtf. 124478 A 65.22.20.7
v0n1.nic.wtf. 165677 A 65.22.21.7
v0n2.nic.wtf. 12099 A 65.22.22.7
v0n3.nic.wtf. 124478 A 161.232.10.7
v2n0.nic.wtf. 124478 A 65.22.23.7
v2n1.nic.wtf. 124478 A 161.232.11.7
v0n0.nic.wtf. 124478 AAAA 2a01:8840:16:0:0:0:0:7
v0n1.nic.wtf. 165677 AAAA 2a01:8840:17:0:0:0:0:7
v0n2.nic.wtf. 12099 AAAA 2a01:8840:18:0:0:0:0:7
v0n3.nic.wtf. 124478 AAAA 2a01:8840:f4:0:0:0:0:7
v2n0.nic.wtf. 124478 AAAA 2a01:8840:19:0:0:0:0:7
v2n1.nic.wtf. 124478 AAAA 2a01:8840:f5:0:0:0:0:7
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0