Apex domains cannot have CNAME records.
Question and response
Question
dig harrimanparis.com. NS
Answer
harrimanparis.com. 4 NS ns-1886.awsdns-43.co.uk.
harrimanparis.com. 4 NS ns-25.awsdns-03.com.
harrimanparis.com. 4 NS ns-572.awsdns-07.net.
harrimanparis.com. 4 NS ns-579.awsdns-08.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0