Apex domains cannot have CNAME records.
Question and response
Question
dig tiny-tiny-corp.com. NS
Answer
tiny-tiny-corp.com. 5 NS ns2.tiny-tiny-corp.com.
tiny-tiny-corp.com. 5 NS ns1.tiny-tiny-corp.com.
Authority
The response has no authority records.
Additional
ns1.tiny-tiny-corp.com. 5 A 163.5.51.198
ns2.tiny-tiny-corp.com. 5 A 209.212.157.199
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0