Apex domains cannot have CNAME records.
Question and response
Question
dig dans-condos.com. NS
Answer
dans-condos.com. 3 NS ns-1852.awsdns-39.co.uk.
dans-condos.com. 3 NS ns-1382.awsdns-44.org.
dans-condos.com. 3 NS ns-35.awsdns-04.com.
dans-condos.com. 3 NS ns-495.awsdns-61.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0