Web based tool
Panopticlick shows how easily your browser can be identified online.

Basic info

This web-based tool designed by the Electronic Frontier Foundation (EFF) tests your “browser fingerprint”, the information your browser is giving away that makes your device uniquely identifiable.

Many users think that by disabling cookies they can avoid being identified by websites, but companies have developed other strategies to identify individual computers. Data like screen size and color depth, time zones, cookies and the operating system running on your machine provide bits of identifying information. By using Panopticlick, you can see your browser fingerprint and understand how your information is transmitted to websites, uniquely identifying your digital device.


Tool type: Web-based tool
Ease of use: This website is easily accessible through browsers, no installation, configuration, maintenance or troubleshooting required.
Open source: Yes
Encryption support: Yes, accessible only via HTTPS
Benefits: You gain the ability to see the configuration and version information of your operating system, your browser and your plug-ins, and to see how easily you can be identified while you surf the web.
Independent code audit: "None that we know of"
Cost: Free of charge
Language: English
Compatibility: Works with any internet browser on your computer and mobile device
Developed by: Electronic Frontier Foundation
Website: Panopticlick

Last updated: 01 March 2016

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