Apex domains cannot have CNAME records.
Question and response
Question
dig interlayer.net. NS
Answer
interlayer.net. 4 NS dns1.interlayer.net.
interlayer.net. 4 NS dns2.interlayer.net.
Authority
The response has no authority records.
Additional
dns1.interlayer.net. 4 A 173.234.30.163
dns2.interlayer.net. 4 A 169.197.183.3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0