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

Non-authoritative answer:
viewpoints.fb.com	canonical name = d1y74ldnuuka58.cloudfront.net.
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.28
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.51
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.26
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.123
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:5000:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:3e00:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:6200:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:2c00:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:fc00:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:0:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:9c00:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:be00:12:9dcd:9700:93a1