Lode Vandevenne wrote the blog post and the code. LinkedIn says he works at Google Zürich.

Thanks a lot. I'm still reluctant to use LinkedIn since much of it feels like extortion to me.

Btw. I'm surprised that you've found the ü character. Not even US customs/border protection let me enter my German name in the ESTA form.

It's actually right in the post that he's based in Zurich.

I could be wrong, but I think it was edited in. Otherwise scaevolus would probably have pointed it out instead of going to hunt LinkedIn.

I guess, Zopfli might be Zöpfli, which is a kind of braided Swiss bread. http://en.wikipedia.org/wiki/Zopf