Your browser's fingerprint

Without asking, your browser just told this page all of this.

Graphics chipReading…Hints at your exact device model and what it cost.

ProcessorReading…How powerful your computer or phone is.

MemoryReading…Another clue about which device you own.

ScreenReading…Size and sharpness narrow down your exact model.

TouchscreenReading…Separates phones, tablets and laptops.

Time zone and languageReading…Where you are and what you read, even behind a VPN.

Installed fontsReading…Fonts come with apps, so they reveal software you've installed.

Together, that's your fingerprint

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Websites and ad networks combine details like these into an ID that follows you from site to site. No cookie needed, so clearing cookies doesn't remove it.

Quick question: will this ID change in a private window?

Try it yourself

Remember your ID: ····-····
Open a private window: ⌘ ⇧ N on a Mac, Ctrl ⇧ N on Windows (P in Firefox), or the tabs button on a phone.
Go to ip5.io/fingerprint and compare.

Same ID?Private mode only hides your history from people who use your device. Websites still recognize the device.

Different ID?Your browser is blurring these details on purpose. Good news: it's protecting you.

What actually helps: Safari, Firefox and Brave blur some of these details. Tor Browser makes everyone look the same. Clearing cookies and private mode don't change your fingerprint.