Handling domains with special non-ASCII characters

Traefik Traefik v3 (latest)
1

Hey there,

I own a domain with a German special character (Umlaut) in it, e.g. sth like über-mich.de. Traefik seems to not be able to handle the "ü" as I get the errors

error while adding rule Host(`<domain>`): error while adding rule Host: invalid value \"<domain>\" for Host matcher, non-ASCII characters are not allowed

error while adding rule HostSNI(`<domain>`): invalid value for HostSNI matcher, \"<domain>\" is not a valid hostname

Is there any way to use such a domain with Traefik? I can obtain a valid Let's Encrypt certificate through Traefik, it's just rule registration that doesn't like it :confused:

David

2

The Umlaut in a domain is not "real", it’s just a presentation to the customer. Use the converter (link) to get the real technical domain name.

3

Thank you very much for that info! With the translated name, it works like a charm :slight_smile: