Apex domains cannot have CNAME records.
Question and response
Question
dig eflorist.com. NS
Answer
eflorist.com. 5 NS eprodns1a.eflorist.com.
eflorist.com. 5 NS eprodns2a.eflorist.com.
Authority
The response has no authority records.
Additional
eprodns1a.eflorist.com. 5 A 162.159.0.236
eprodns2a.eflorist.com. 5 A 162.159.1.242
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0