Language and speaking addresses

The language sits in the first path segment of the address — no cookie, no browser detection. Each language has its own speaking addresses: /en/validate, /de/pruefen, /fr/verifier, /es/validar.

The nine languages

German, English, French, Italian, Finnish, Spanish, Polish, Dutch and Portuguese.

The globe in the header switches to the same page in the other language, not to the start page. Calling / redirects permanently to /de.

Why the language sits in the address

Because an address is then complete: you can pass it on, bookmark it or put it in a document, and it opens the same page in the same language everywhere. Language detection via a browser setting or a cookie would not have that property — the same link would look different to two people.

The interface is translated, not every message

Some validation messages come from the validation engine and are in German; those passages are marked as such in the report. Rule IDs and BT references are language-neutral — and for automated evaluation it is the rule ID that counts anyway, never the message text.

The language of the invoice is a separate matter

The portal language governs the interface. Which language the visual layer of a hybrid PDF carries is chosen separately in the create form — eight languages are offered there, with “Same as page language” as the default. See Creating: output as XML or hybrid PDF.

File names follow the language too: the generated XML is called rechnung.xml, facture.xml and so on — with FatturaPA, by contrast, it carries the name prescribed by the Italian SdI.