Emoji domains and how wonderfully broken they are (divoc_r2r)

Did you know that you can get a domain that contains an emoji? Well, technically speaking you can't because domains only allow a very limited character set. However, there is a workaround to that called Punycode. You can encode non-supported characters to punycode and allow people to visit your site by entering those characters in their URL bar -the browser will take care of encoding them. Sounds good, doesn't it? Well, unicode is more complex than one would think; especially the parts around emoji are. That means encoding those characters isn't easy and a lot goes wrong. I want to showcase some ways in that emoji/ punycode domains are broken, how you can have fun with them and why you should actually just avoid them for anything you want to use productively. Fragenpad: https://di.c3voc.de/pad/r2r:talk:3MXRDE about this event: https://pretalx.c3voc.de/divoc-reboot-to-respawn-2021/talk/3MXRDE/