Apex domains cannot have CNAME records.
Question and response
Question
dig lemoncorp.net. NS
Answer
lemoncorp.net. 5 NS dns200.anycast.me.
lemoncorp.net. 5 NS ns200.anycast.me.
Authority
The response has no authority records.
Additional
ns200.anycast.me. 5 A 46.105.207.200
dns200.anycast.me. 5 A 46.105.206.200
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0