Apex domains cannot have CNAME records.
Question and response
Question
dig loomrt.com. NS
Answer
loomrt.com. 1 NS ns3.loomrt.com.
loomrt.com. 1 NS ns2.loomrt.com.
Authority
The response has no authority records.
Additional
ns2.loomrt.com. 1 A 171.244.33.198
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0