[tancop]

you can go ipv6 only, any good isp will give you a static /56 for free. practically none of your users have ipv4 only devices when every major os has been dual stack by default for like 15 years. if your isp cant give you one its time to switch as soon as you can.

[charcircuit]

My ISP is only ipv4. It doesn't matter if an OS technically support ipv6 or not.

[inigyou]

You can get a Hurricane Electric free static v6 tunnel.

They have poor reputations and are blocked from streaming sites and so on. But when you're the server, that doesn't affect you.

Note that you need a static v4 and DMZ because the tunnel protocol is a very simple one - presumably because they run it on giant routers. It just puts a v4 header in front of the v6 header. No TCP or UDP.

[charcircuit]

I may be able to, but the millions of others won't. The solution needs to work out of the box for consumers.

[wolvoleo]

Ehh my ISP at home is still ipv4 only. The amount of ipv6 capable connections only just passed 50% worldwide a few months ago.

I don't think ipv6 only is feasible yet unless your audience is exclusively in Asia where ipv6 uptake is much higher due to them running out of ipv4 years ago