Apex domains cannot have CNAME records.
Question and response
Question
dig roundrockscroll.com. NS
Answer
roundrockscroll.com. 5 NS ns-1978.awsdns-55.co.uk.
roundrockscroll.com. 5 NS ns-1823.awsdns-35.co.uk.
roundrockscroll.com. 5 NS ns-1171.awsdns-18.org.
roundrockscroll.com. 5 NS ns-1734.awsdns-24.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0