shell:$ nslookup -timeout=2 -retry=1 'activate.viber.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
activate.viber.com	canonical name = d37wvb5i62p5t5.cloudfront.net.
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 3.170.51.91
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 3.170.51.89
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 3.170.51.13
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 3.170.51.122
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:de00:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:3400:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:4800:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:9e00:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:f600:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:7c00:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:ba00:1f:e498:ea40:93a1
Name:	d37wvb5i62p5t5.cloudfront.net
Address: 2600:9000:2873:7200:1f:e498:ea40:93a1