German is spoken in countries other than Germany: looking at only countries where the German language enjoys some form of official or co-official status, we have Germany (of course), Austria, Liechtenstein, Switzerland, Belgium, and Luxembourg. Denmark, Hungary, Italy, and Poland also formally recognise German as a minority language.

That's not to mention the countless expats/second language speakers around the world.

Having a German language version of your website/product is by no means equivalent to being subject to the jurisdiction of Germany the country.