#DiVOC R2R - Emoji domains and how wonderfully broken they are
Channel: media.ccc.de
Date: 2021-04-05

https://media.ccc.de/v/divoc-reboot-to-respawn-2021-1-emoji-domains-and-how-wonderfully-broken-they-are



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

dysphoricUnicorn

https://pretalx.c3voc.de/divoc-reboot-to-respawn-2021/talk/3MXRDE/