[nextw33k]

That's not entirely true though. IPv6 has been prioritised on various devices and Google taught us over a decade ago that response time makes the web experience feel better to the user.

You'd better be on dual stack if you don't want your users to think the competitors feels faster/smoother. Otherwise you'll be the Yahoo of your market.

[ultramancool]

Not true at all - the problem is that IPv6 routes are less mature and less monitored than IPv4 routes, so using v6 preferentially is actually often slower.

I work with VOIP and we had to disable v6 for our customers because we were getting complaints about latency issues repeatedly from customers on v6. Disabled IPv6, no more complaints.

IPv6 is more likely to make you "the Yahoo of your market" than the inverse, especially if you work in latency sensitive applications.

[X-Istence]

This is contrarian to real world testing:

http://www.internetsociety.org/deploy360/blog/2015/04/facebo... https://www.youtube.com/watch?v=EfjdOc41g0s

Facebook and many other companies are finding that IPv6 is faster, personally at home I have found that disabling IPv4 allows me to more quickly buffer and stream Netflix, and about 30 - 40% of my traffic is IPv6. My Apple TV is the last hold-out that still seems to use IPv4 over IPv6 for Netflix.