Apex domains cannot have CNAME records.
Question and response
Question
dig lmrzg.com. NS
Answer
lmrzg.com. 5 NS ns2.lmrzg.com.
lmrzg.com. 5 NS ns1.lmrzg.com.
Authority
The response has no authority records.
Additional
ns1.lmrzg.com. 5 A 51.195.5.90
ns2.lmrzg.com. 5 A 104.206.11.114
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0