Apex domains cannot have CNAME records.
Question and response
Question
dig zoneedit.com. NS
Answer
zoneedit.com. 5 NS t1.zoneedit.com.
zoneedit.com. 5 NS dns3.easydns.org.
zoneedit.com. 5 NS t2.zoneedit.com.
zoneedit.com. 5 NS dns2.easydns.net.
zoneedit.com. 5 NS dns1.easydns.com.
zoneedit.com. 5 NS dns4.easydns.info.
Authority
The response has no authority records.
Additional
t1.zoneedit.com. 5 A 172.235.133.229
t2.zoneedit.com. 5 A 45.33.33.148
dns1.easydns.com. 5 A 64.68.196.10
dns2.easydns.net. 5 A 64.68.193.10
dns3.easydns.org. 5 A 64.68.192.10
dns4.easydns.info. 5 A 64.68.197.10
t1.zoneedit.com. 5 AAAA 2a01:7e04:0:0:f03c:95ff:fe1d:a5b3
t2.zoneedit.com. 5 AAAA 2600:3c01:0:0:f03c:95ff:fe1d:a125
dns1.easydns.com. 5 AAAA 2620:49:3:0:0:0:0:10
dns2.easydns.net. 5 AAAA 2620:49:2:0:0:0:0:10
dns3.easydns.org. 5 AAAA 2620:49:1:0:0:0:0:10
dns4.easydns.info. 5 AAAA 2620:49:4:0:0:0:0:10
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0