Given that you're claiming that it doesn't render on two popular browsers, one of which I believe has the most market share of any browser, maybe your first thought should be that there's something wrong with your setup?
It is, but I tested in new, clean profile and it's the same. No error in Network or Console either.
It looks like to me the font this page uses ("rubik") are just showing as blank despite being a network resource.
I'm no webdev so this is the best I can do.
Edit: I think this font is just broken on Win 7: https://github.com/google/fonts/issues/1137, at least the version hosted on Adobe Fonts which this webpage is using.