Apex domains cannot have CNAME records.
Question and response
Question
dig ofdlv.net. NS
Answer
ofdlv.net. 5 NS ns-19.awsdns-02.com.
ofdlv.net. 5 NS ns-626.awsdns-14.net.
ofdlv.net. 5 NS ns-1149.awsdns-15.org.
ofdlv.net. 5 NS ns-1747.awsdns-26.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0