Apex domains cannot have CNAME records.
Question and response
Question
dig iis5.net. NS
Answer
iis5.net. 4 NS ns10.iis5.net.
iis5.net. 4 NS ns.iis5.net.
iis5.net. 4 NS securekloud.iis5.net.
iis5.net. 4 NS ns6.iis5.net.
iis5.net. 4 NS ns2.iis5.net.
iis5.net. 4 NS ns5.iis5.net.
iis5.net. 4 NS ns3.iis5.net.
iis5.net. 4 NS kloudkonnect.iis5.net.
iis5.net. 4 NS ns9.iis5.net.
iis5.net. 4 NS ns16.iis5.net.
Authority
The response has no authority records.
Additional
ns16.iis5.net. 4 A 103.86.177.208
securekloud.iis5.net. 4 A 103.191.208.75
kloudkonnect.iis5.net. 4 A 103.191.209.76
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0