Shown in the article, but not linked: Google's IPv6 adoption statistics: <https://www.google.com/intl/en/ipv6/statistics.html https://www.google.com/intl/en/ip

Shown in the article, but not linked: Google's IPv6 adoption statistics: <https://www.google.com/intl/en/ipv6/statistics.html https://www.google.com/intl/en/ipv6/statistics.html> Facebook's IPv6 adoption statistics: <https://www.facebook.com/ipv6/?tab=ipv6_total_adoption https://www.facebook.com/ipv6/?tab=ipv6_total_adoption>