Website translation from english to german


first of all: I come from Germany.

I just tried out if you can add words like “team”, “badges”, etc. after, so that the link looks like this:

Then I noticed that there is an error on the german error page. At the bottom it says “Diese Site durchsuchen”, although it should actually say “Diese Seite durchsuchen”.

I have a question about this. Is there a translation program for the website or even for all products (including client)? If so, is it possible to register there as a translator?

Thanks in advance for the answers.