I don't really trust the EFF site. I'm not trying to be an annoying contrarian but as far as I can tell it always reports a unique result and nobody has explained to me yet why a freshly set up iPhone should look unique to them. Everyone talks about canvas fingerprinting or whatever but I mean it is literally the same GPU and screen size and font stack and colorspace as a million other iPhones. What are they getting? My time zone, maybe? IP? What do I actually do to reduce the number of bits?