[AdrianoKF]

You can also use iodine (https://github.com/yarrick/iodine/) to tunnel IPv4 data through DNS (useful e.g. when on a captive portal network that doesn't block DNS requests). Performance isn't great obviously, but the concept is fascinating nonetheless.

[chris_wot]

So you could tunnel ipv4 through DNS, and serve HTML via DNS, and use DNS over HTTPS?

[3-cheese-sundae]

It’s not DNS. There’s no way it’s DNS. It was DNS.