Apex domains cannot have CNAME records.
Question and response
Question
dig 101010.gg. NS
Answer
101010.gg. 5 NS marvin.101010.gg.
101010.gg. 5 NS slartibartfast.101010.gg.
101010.gg. 5 NS arthur.101010.gg.
Authority
The response has no authority records.
Additional
arthur.101010.gg. 5 A 134.195.4.2
marvin.101010.gg. 5 A 134.195.5.57
arthur.101010.gg. 5 AAAA 2604:ffc0:0:0:0:0:0:0
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0