Exposure score
Each signal below is assigned an entropy weight from public fingerprinting studies (bits of identifying information a typical value carries across a population). The identifiability score sums those weights, then converts to an estimated rarity (i.e. how many browsers would share the same combination). The exposure percentage reflects how much of your device and network configuration is visible to sites you visit.
Identifiability
- Entropy
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- Rarity (est.)
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- Measured here
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- Top traits
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Exposure
- Surface
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- Revealing
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Connection
- Public IP
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- IP version
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- Reverse DNS
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- Location
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- Timezone (IP)
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- Coordinates
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- ASN
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- Provider
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- Tor exit node
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HTTP headers
Sent by your browser with every request. proxy rows were added by the server's reverse proxy, not by you.
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CPU & memory
- Logical CPU cores
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- Device memory
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- Architecture
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- Bitness
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- Platform
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- Device model
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GPU
- Renderer
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- Vendor
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- WebGL
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- WebGPU adapter
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Screen
- Resolution
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- Available area
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- Viewport
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- Pixel ratio
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- Color depth
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- Orientation
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- Color gamut
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- HDR
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Browser
- User agent
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- Brands
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- Languages
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- Timezone (browser)
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- Do Not Track / GPC
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- Cookies
- Storage
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- Storage quota
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- PDF viewer
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- Touch points
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- Automation
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- Private mode
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Fingerprint probes
Hashes derived from how your hardware and software render things. Combined, they can identify you across sites without cookies.
- Canvas hash
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- Audio hash
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- Detected fonts
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- Font list
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- Locale
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WebRTC leak test
WebRTC can expose local and public addresses even behind a VPN. Modern browsers usually mask local IPs as random .local names.
- ICE candidates
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DNS leak test
Your browser resolves a random one-time name that only this site's DNS server can answer, revealing which resolver actually handles your lookups. Behind a VPN, answers arriving from your ISP's resolver are a DNS leak. Only the resolver's address — and, if it forwards one, your network prefix rounded to /24 (IPv6: /48) — is kept, for ten minutes.
- Resolver
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- Client subnet (ECS)
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- Verdict
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Network & power
- Connection type
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- Downlink
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- Round-trip time
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- Data saver
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- Battery
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Capabilities
Further APIs that vary between installs and feed the identifiability score.
- Speech voices
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- Media devices
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- Permissions
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- Display prefs
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Consistency checks
Cross-checks between your IP and your browser that often reveal a VPN, proxy or spoofed setting.
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