While https://panopticlick.eff.org/ is not really new, I learned about that site only recently. And while I knew that browser self-identification would reduce my anonymity on the Internet, I didn't expect this result:
Your browser fingerprint appears to be unique among the 5,198,585 tested so far.
Wow. Why? Let's try one of the others browsers I use. "Appears to be unique", again (where Flash is enabled). What's so unique about my setup? The two reports say about my setup:
|Characteristic||One in x browsers have this value|
|Browser Plugin Details||577,620.56||259,929.65||7,351.75|
|Screen Size and Color Depth||13.72||13.72||13.72|
(Flash and Java disabled)
|Are Cookies Enabled?||1.35||1.35||1.35|
|Limited supercookie test||1.83||1.83||1.83|
User agent and browser plug-ins hurt, fonts alone kill me altogether. Ouch. Update:
- It's the very same when browsing with an incognito window. Re-reading, what that feature is officially intended to do (being incognito to your own history), that stops being a surprise.
- Chromium (with Flash/Java disabled) added
Thoughts on fixing this issue:
I'm not sure about how I want to fix this myself. Faking popular values (in a popular combination to not fire back) could work using a local proxy, a browser patch, a browser plug-in maybe. Obtaining true popular value combinations is another question. Fake values can reduce the quality of the content I am presented, e.g. I would not fake my screen resolution or be sure to not deviate by much, probably.