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: 108.156.172.26
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.123
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.51
Name:	d1y74ldnuuka58.cloudfront.net
Address: 108.156.172.28
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:200:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:6600:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:1200:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:c200:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:6200:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:1c00:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:a800:12:9dcd:9700:93a1
Name:	d1y74ldnuuka58.cloudfront.net
Address: 2600:9000:24f7:c000:12:9dcd:9700:93a1