[sigio]

It still exists, and still works. I was sure I showed it to someone a few months ago, and just confirmed, it's still online. (I know the guy who built it). It works over ipv4 and v6, with the ipv6 version having some additions ;)

[cl3misch]

Thanks! Admittedly I didn't check before writing my comment. It does indeed still work! Maybe one has to enable ipv6.

[queenkjuul]

It worked last time i tried it, but it's not working for me today

[w4yai]

Doesn't work for me