[Tainan]

Your browser fingerprint appears to be unique among the 1,597,433 tested so far.
Currently, we estimate that your browser has a fingerprint that conveys at least 20.61 bits of identifying information.

I have no idea what the heck this means.

[LibWhacker]

It’s just a measure of how much information your browser is handing off to any server on the internet it connects to. In this case, I think, ‘bits’ means ‘pieces,’ not bits as in “bytes and bits.” Twenty is not very good, according to EFF.