Apex domains cannot have CNAME records.
Question and response
Question
dig serverslane.com. NS
Answer
serverslane.com. 5 NS ns2.serverslane.com.
serverslane.com. 5 NS ns1.serverslane.com.
Authority
The response has no authority records.
Additional
ns1.serverslane.com. 5 A 63.223.80.2
ns2.serverslane.com. 5 A 63.223.80.3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0