shell:$ nslookup -timeout=2 -retry=1 'account.integration.viber.com'
Server:		1.1.1.1
Address:	1.1.1.1#53

Non-authoritative answer:
Name:	account.integration.viber.com
Address: 35.157.33.249
Name:	account.integration.viber.com
Address: 63.181.125.156