[nazka]

Interesting link. You can go even deeper with more data like resolution of your screen etc... And almost be able to track someone. It's kind of crazy.

There is a JS project based on that and that gives you an ID based on the fingerprint. [1]

[1] https://github.com/Valve/fingerprintjs2

Edit: I just saw that the link provide even more data like this. Just my list of font is a > 99.9% of uniqueness. Multiplied by all the other likelihood, it's getting close to having the signature of every person on internet.