Apex domains cannot have CNAME records.
Question and response
Question
dig awsdns-14.net. NS
Answer
awsdns-14.net. 5 NS g-ns-1934.awsdns-14.net.
awsdns-14.net. 5 NS g-ns-784.awsdns-14.net.
awsdns-14.net. 5 NS g-ns-463.awsdns-14.net.
awsdns-14.net. 5 NS g-ns-1358.awsdns-14.net.
Authority
The response has no authority records.
Additional
g-ns-463.awsdns-14.net. 5 A 205.251.193.207
g-ns-784.awsdns-14.net. 5 A 205.251.195.16
g-ns-1358.awsdns-14.net. 5 A 205.251.197.78
g-ns-1934.awsdns-14.net. 5 A 205.251.199.142
g-ns-463.awsdns-14.net. 5 AAAA 2600:9000:5301:cf00:0:0:0:1
g-ns-784.awsdns-14.net. 5 AAAA 2600:9000:5303:1000:0:0:0:1
g-ns-1358.awsdns-14.net. 5 AAAA 2600:9000:5305:4e00:0:0:0:1
g-ns-1934.awsdns-14.net. 5 AAAA 2600:9000:5307:8e00:0:0:0:1
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0