I don't think thats true, I think internally Google uses ipv6, see for example https://www.usenix.org/legacy/events/lisa11/tech/full_papers/Babiker.pdf https://

I don't think thats true, I think internally Google uses ipv6, see for example https://www.usenix.org/legacy/events/lisa11/tech/full_papers/Babiker.pdf https://www.usenix.org/legacy/events/lisa11/tech/full_papers... about end users, but I believe the data centers are also ipv6 internally.