xn-- domains are fallback Unicode compatibility domains for systems that don't support it. It's mainly seen in Asia. So it's not the intended representation of

xn-- domains are fallback Unicode compatibility domains for systems that don't support it. It's mainly seen in Asia. So it's not the intended representation of the domain name, that's ubähnchen.vercel.app I think ubähnchen means little U-bahn. It's interesting to see Germans are still very strict with their letter accents even in domain names. I'm from the Netherlands myself and because we mainly use US keyboards (there is a NL type but nobody uses it), accents are a PITA to type so people started leaving them out. These days they're almost extinct, as is the ligature for "ij". We're pretty pragmatic like that. Personally I wouldn't even care if we phase Dutch out for English, it's just much more useful on a global scale. But that's probably a step too far for most.