Apex domains cannot have CNAME records.
Question and response
Question
dig masstortheadquarters.com. NS
Answer
masstortheadquarters.com. 5 NS ns2.masstortheadquarters.com.
masstortheadquarters.com. 5 NS ns1.masstortheadquarters.com.
Authority
The response has no authority records.
Additional
ns1.masstortheadquarters.com. 5 A 54.37.82.2
ns2.masstortheadquarters.com. 5 A 5.135.31.116
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0