Apex domains cannot have CNAME records.
Question and response
Question
dig cdlan.net. NS
Answer
cdlan.net. 5 NS ns0.cdlan.business.
cdlan.net. 5 NS ns1.cdlan.net.
cdlan.net. 5 NS ns2.cdlan.net.
Authority
The response has no authority records.
Additional
ns1.cdlan.net. 5 A 162.250.144.80
ns1.cdlan.net. 5 A 217.171.33.241
ns2.cdlan.net. 5 A 207.244.68.194
ns2.cdlan.net. 5 A 217.171.33.242
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0