Apex domains cannot have CNAME records.
Question and response
Question
dig harriscountypubliclibrary.net. NS
Answer
harriscountypubliclibrary.net. 5 NS ns-1980.awsdns-55.co.uk.
harriscountypubliclibrary.net. 5 NS ns-956.awsdns-55.net.
harriscountypubliclibrary.net. 5 NS ns-385.awsdns-48.com.
harriscountypubliclibrary.net. 5 NS ns-1192.awsdns-21.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0