heatmap.time.com.my has no NS records.
NS records for this zone are defined at time.com.my.
NS records for this zone are defined at time.com.my.
Question and response
Question
dig heatmap.time.com.my. NS
Answer
The response has no answer records.
Authority
time.com.my. 3600 SOA blue.foundationdns.com. hostmaster.time.net.my. 2397600296 28800 14400 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0