Apex domains cannot have CNAME records.
Question and response
Question
dig rogers.com. NS
Answer
rogers.com. 5 NS ns-a8.rogers.com.
rogers.com. 5 NS ns-a3.rogers.com.
rogers.com. 5 NS ns3.ym.rnc.net.cable.rogers.com.
rogers.com. 5 NS ns2.ym.rnc.net.cable.rogers.com.
rogers.com. 5 NS ns2.wlfdle.rnc.net.cable.rogers.com.
rogers.com. 5 NS ns-a1.rogers.com.
rogers.com. 5 NS ns3.wlfdle.rnc.net.cable.rogers.com.
rogers.com. 5 NS ns-a6.rogers.com.
rogers.com. 5 NS ns-a9.rogers.com.
Authority
The response has no authority records.
Additional
ns2.ym.rnc.net.cable.rogers.com. 5 A 24.153.22.142
ns2.wlfdle.rnc.net.cable.rogers.com. 5 A 24.153.22.14
ns3.ym.rnc.net.cable.rogers.com. 5 A 64.71.246.156
ns3.wlfdle.rnc.net.cable.rogers.com. 5 A 64.71.246.28
ns-a1.rogers.com. 5 A 193.108.91.220
ns-a3.rogers.com. 5 A 96.7.49.64
ns-a6.rogers.com. 5 A 23.211.133.65
ns-a8.rogers.com. 5 A 2.16.40.66
ns-a9.rogers.com. 5 A 184.85.248.67
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0