Apex domains cannot have CNAME records.
Question and response
Question
dig totisp.net. NS
Answer
totisp.net. 4 NS ad-02.totisp.net.
totisp.net. 4 NS ns2.totisp.net.
totisp.net. 4 NS ns1.totisp.net.
totisp.net. 4 NS ad-01.totisp.net.
Authority
The response has no authority records.
Additional
ns1.totisp.net. 4 A 203.113.112.44
ns2.totisp.net. 4 A 118.175.45.99
ns1.totisp.net. 4 AAAA 2001:ec0:c00:302:0:2:574:8504
ns2.totisp.net. 4 AAAA 2001:ec0:c00:202:0:2:574:8505
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0