Apex domains cannot have CNAME records.
Question and response
Question
dig alchemer-thrall.com. NS
Answer
alchemer-thrall.com. 4 NS ns-459.awsdns-57.com.
alchemer-thrall.com. 4 NS ns-1320.awsdns-37.org.
alchemer-thrall.com. 4 NS ns-604.awsdns-11.net.
alchemer-thrall.com. 4 NS ns-1830.awsdns-36.co.uk.
Authority
The response has no authority records.
Additional
ns-604.awsdns-11.net. 4 A 205.251.194.92
ns-1320.awsdns-37.org. 4 A 205.251.197.40
ns-1830.awsdns-36.co.uk. 4 A 205.251.199.38
ns-459.awsdns-57.com. 4 AAAA 2600:9000:5301:cb00:0:0:0:1
ns-604.awsdns-11.net. 4 AAAA 2600:9000:5302:5c00:0:0:0:1
ns-1320.awsdns-37.org. 4 AAAA 2600:9000:5305:2800:0:0:0:1
ns-1830.awsdns-36.co.uk. 4 AAAA 2600:9000:5307:2600:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0