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: 18.141.23.81
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 52.221.54.218
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 18.142.124.68
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 47.131.187.236
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 18.141.50.107
Name:	nprd-t6-1595427723.ap-southeast-1.elb.amazonaws.com
Address: 54.251.46.136