Apex domains cannot have CNAME records.
Question and response
Question
dig angst-depression.com. NS
Answer
angst-depression.com. 5 NS ns-872.awsdns-45.net.
angst-depression.com. 5 NS ns-664.awsdns-19.net.
angst-depression.com. 5 NS ns-850.awsdns-42.net.
angst-depression.com. 5 NS ns-1573.awsdns-04.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0