Apex domains cannot have CNAME records.
Question and response
Question
dig cruisingamericarvserviceco.com. NS
Answer
cruisingamericarvserviceco.com. 5 NS ns-1417.awsdns-49.org.
cruisingamericarvserviceco.com. 5 NS ns-937.awsdns-53.net.
cruisingamericarvserviceco.com. 5 NS ns-80.awsdns-10.com.
cruisingamericarvserviceco.com. 5 NS ns-1042.awsdns-02.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0