Apex domains cannot have CNAME records.
Question and response
Question
dig ifxnetworks.co. NS
Answer
ifxnetworks.co. 1 NS ns0.ifxnetworks.co.
ifxnetworks.co. 1 NS ns1.ifxnetworks.com.
ifxnetworks.co. 1 NS ns1.ifxnetworks.co.
ifxnetworks.co. 1 NS ns0.ifxnetworks.com.
Authority
The response has no authority records.
Additional
ns0.ifxnetworks.co. 1 A 200.62.2.178
ns1.ifxnetworks.co. 1 A 200.62.2.179
ns1.ifxnetworks.co. 1 A 200.110.143.68
ns1.ifxnetworks.co. 1 A 200.110.143.71
ns0.ifxnetworks.co. 4 AAAA 2607:5580:0:f:0:0:0:5
ns1.ifxnetworks.co. 4 AAAA 2607:5580:0:f:0:0:0:5
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0