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What any website can see about you

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Why This Matters

This article highlights the types of user data that websites can access through your browser and IP address, emphasizing the importance of understanding online privacy. Recognizing what information is visible helps consumers make informed decisions about their digital footprint and privacy settings, while also encouraging developers to implement better privacy protections.

Key Takeaways

// My System Information on the Internet

An optional signal your browser can send asking websites not to track your behavior — most browsers no longer enable this by default.

A flag indicating whether your browser is configured to store small text files that websites can write and read back later.

The size of your actual visible browser window — different from your full screen resolution if your browser isn't maximized.

The number of logical processor cores available in your device, as reported by the browser.

Whether your device is classified as a desktop, tablet, or mobile phone, based on your browser's user agent string.

A rough geographic estimate of where you are, derived by looking up your IP address in a regional database.

Estimated latitude and longitude for your connection, derived from the same IP lookup as the city and region above.

A numerical label assigned to your device by your internet provider that identifies it on the network.

// learn more about what gets shared

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