Apex domains cannot have CNAME records.
Question and response
Question
dig fo. NS
Answer
fo. 5 NS mimi.nic.fo.
fo. 5 NS a.nic.fo.
fo. 5 NS c.nic.fo.
fo. 5 NS b.nic.fo.
fo. 5 NS d.nic.fo.
fo. 5 NS xn--gurun-jta.nic.fo.
Authority
The response has no authority records.
Additional
a.nic.fo. 3285 A 194.169.218.27
b.nic.fo. 3285 A 185.24.64.27
c.nic.fo. 3285 A 212.18.248.27
d.nic.fo. 3285 A 212.18.249.27
mimi.nic.fo. 172572 A 77.72.229.243
xn--gurun-jta.nic.fo. 172572 A 194.146.106.158
a.nic.fo. 3285 AAAA 2001:67c:13cc:0:0:0:1:27
b.nic.fo. 3285 AAAA 2a04:2b00:13cc:0:0:0:1:27
c.nic.fo. 3285 AAAA 2a04:2b00:13ee:0:0:0:0:27
d.nic.fo. 3285 AAAA 2a04:2b00:13ff:0:0:0:0:27
mimi.nic.fo. 172572 AAAA 2a01:3f0:0:315:0:0:0:53
xn--gurun-jta.nic.fo. 172572 AAAA 2001:67c:1010:40:0:0:0:53
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0