ns4.cimbbank.com.sg has no CNAME records.
Question and response
Question
dig ns4.cimbbank.com.sg. NS
Answer
The response has no answer records.
Authority
cimbbank.com.sg. 19 SOA bhqkpk400206.cimbmy.cimbdomain.com. admin.cimb.com.my. 142 10800 3600 604800 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0