This is a weird question to ask but why's your website German for me?
Edit: Oh, I got it. This submission links to the English version, but the "the next elim." link at the top links to a not specifically English URL, and going from there to any other page gets me to the German version. Huh.
I'm German, that's why I was spooked! I'm not in Germany and nothing on my system should be set to German so I was worried you might be applying some sort of mind-reading analytics tech.
Even the order of entries in the Accept-Language header, as per browser settings? That's usually the source of half the problems I have with websites suddenly defaulting to an unexpected language.
(The other half is websites suddenly displaying in Norwegian; it started after I was in Oslo for a few days and, while there, had to re-activate Skype from the website. Even a decade and two jobs later, on completely unrelated computers, some websites will suddenly display in Norwegian, for reasons completely unknown.)
Edit: Oh, I got it. This submission links to the English version, but the "the next elim." link at the top links to a not specifically English URL, and going from there to any other page gets me to the German version. Huh.