Not really. They turned it on for an increasing number of customers during a single week and then turned it off for most of them, but still ended up with more I

Not really. They turned it on for an increasing number of customers during a single week and then turned it off for most of them, but still ended up with more IPv6-enabled customers than before. As explained in the Cloudflare blog post [0], this is common when testing IPv6 deployement before complete rollout. [0] https://blog.cloudflare.com/ipv6-in-china/ https://blog.cloudflare.com/ipv6-in-china/