Panopticlick — How Unique, and Trackable, Is Your Browser?


Your browser fingerprint appears to be unique among the 2,917,215 tested so far.

Currently, we estimate that your browser has a fingerprint that conveys at least 21.48 bits of identifying information.

The measurements we used to obtain this result are listed below. You can read more about our methodology, statistical results, and some defenses against fingerprinting in this article.

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Browser Characteristic bits of identifying information one in x browsers have this value value
User Agent
21.48+
2917215
CCBot/2.0
HTTP_ACCEPT Headers
19.89
972405
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 x-gzip, gzip, deflate en-us,en-gb,en;q=0.7,*;q=0.3
Browser Plugin Details
1.77
3.41
no javascript
Time Zone
1.76
3.39
no javascript
Screen Size and Color Depth
1.76
3.39
no javascript
System Fonts
1.77
3.4
no javascript
Are Cookies Enabled?
1.97
3.91
No
Limited supercookie test
1.76
3.39
no javascript
Thanks to browserspy.dk for the font detection code, and to breadcrumbs for supercookie help.
Frequently asked questions.
Send other questions or comments to panopticlick@eff.org.
EFF
A research project of the Electronic Frontier Foundation