Apex domains cannot have CNAME records.
Question and response
Question
dig canhost.ca. NS
Answer
canhost.ca. 4 NS ns10.kookiejar.net.
canhost.ca. 4 NS ns3.managedns.ca.
canhost.ca. 4 NS ns4.managedns.ca.
canhost.ca. 4 NS ns13.kookiejar.net.
Authority
The response has no authority records.
Additional
ns13.kookiejar.net. 4 A 66.209.183.1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0