#IPv6 adoption is still terrible.

Akamai, Cloudflare, and Google all report roughly 45% of traffic to their services using IPv6 in the US...

https://www.akamai.com/security-research/ipv6-adoption-visualization

...but that's (a) not all that great, and (b) only HTTP traffic to major services.

Just what % of sites actually _offers_ IPv6? I took a look...