NB: this is not "IPv6 traffic crosses the 50% mark" but "availability of IPv6 connectivity among Google users", which is a very important difference. This means roughly half of Google users have IPv6 capability, which does not 1:1 correspond how much traffic is actually transferred over IPv6, which is what this submission says in the title.
It also means you're excluding China, who has has it as a long-term priority to deploy IPv6 and have made huge strides.
Yeah and this distinction explains the fact that because China's Great Firewall blocks Google, this website shows 4.66% adoption as a reflection of that. I think China's IPv6 support rate is actually much higher than that, maybe a little over 50% because of its central initiative to increase IPv6 adoption?
EDIT: Apparently it's 77% https://pulse.internetsociety.org/en/news/2026/01/china-hits...