ns2.io.mk has no CNAME records.
Question and response
Question
dig ns2.io.mk. NS
Answer
The response has no answer records.
Authority
io.mk. 206 SOA ns1.cloudns.net. support.cloudns.net. 2025092901 7200 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0