Apex domains cannot have CNAME records.
Question and response
Question
dig giftlegacy.com. NS
Answer
giftlegacy.com. 5 NS ns4.cresns.com.
giftlegacy.com. 5 NS ns1.cresns.com.
giftlegacy.com. 5 NS ns2.cresns.com.
giftlegacy.com. 5 NS ns3.cresns.com.
Authority
The response has no authority records.
Additional
ns1.cresns.com. 5 A 205.251.194.30
ns2.cresns.com. 5 A 205.251.192.95
ns3.cresns.com. 5 A 205.251.196.183
ns4.cresns.com. 5 A 205.251.199.7
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0