shell:$ nslookup -timeout=2 -retry=1 'ns4.smart.co.id'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	ns4.smart.co.id
Address: 13.248.169.48
Name:	ns4.smart.co.id
Address: 76.223.54.146