shell:$ nslookup -timeout=2 -retry=1 'api.sg.gdefence.io'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
api.sg.gdefence.io	canonical name = nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com.
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 13.228.193.51
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 18.136.79.216
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 3.0.22.96
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 52.74.66.21
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 54.255.46.171
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 54.254.78.220