shell:$ nslookup -timeout=2 -retry=1 'slt-web-877884507.ap-southeast-1.elb.amazonaws.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	slt-web-877884507.ap-southeast-1.elb.amazonaws.com
Address: 13.251.133.119