Apex domains cannot have CNAME records.
Question and response
Question
dig forhometuition.com. NS
Answer
forhometuition.com. 4 NS ns-1785.awsdns-31.co.uk.
forhometuition.com. 4 NS ns-840.awsdns-41.net.
forhometuition.com. 4 NS ns-144.awsdns-18.com.
forhometuition.com. 4 NS ns-591.awsdns-09.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0