2011-2015 I was on the team at Mozilla responsible for MDN. At the time it most certainly was not doing any type of IP geolocation; your browser's Accept-Langu

2011-2015 I was on the team at Mozilla responsible for MDN. At the time it most certainly was not doing any type of IP geolocation; your browser's Accept-Language header was how we initially determined the language to show you. Edit: And it still does only use Accept-Language. Here's the code: https://github.com/mozilla/kuma/blob/a3ad0dbb286fd45affdf1aec329704ed90b2b6c5/kuma/core/urlresolvers.py#L118 https://github.com/mozilla/kuma/blob/a3ad0dbb286fd45affdf1ae...