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

Non-authoritative answer:
api.viber.com	canonical name = alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com.
Name:	alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com
Address: 44.205.41.48
Name:	alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com
Address: 100.25.134.132
Name:	alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com
Address: 3.228.178.21
Name:	alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com
Address: 44.198.126.188
Name:	alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com
Address: 44.216.33.72
Name:	alb-sn-http-public-1965732462.us-east-1.elb.amazonaws.com
Address: 3.232.165.172