Free Tool

Network Privacy Checker

See exactly what your browser leaks on the local network — local IPs, device fingerprint, WebRTC leaks, and a privacy score. Everything runs in your browser. Nothing is sent anywhere.

— Score

Ready to scan

Click the button below to analyse your browser's exposed network signals.

Local Network

Local IP (WebRTC)—

WebRTC Leak—

Device Fingerprint

Platform—

OS / Browser—

Screen Resolution—

Timezone—

Language—

CPU Cores—

Device Memory—

Do Not Track—

MAC Address

Visible to websites?No — only to your router

Visible on local network?Yes — to router & captive portals

How to protect itUse MacSpoof ↗

What networks can see about you

When you connect to any Wi-Fi network — hotel, coffee shop, airport, or in-flight — the network and its operators have access to more information about your device than most people realise.

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MAC Address

Your hardware identifier. Visible to your router, captive portals, and any network monitoring tools. Used to track your session and enforce time limits.

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Local IP Address

Assigned by the network's DHCP server. Tied to your MAC address. Can be logged and correlated across sessions if your MAC doesn't change.

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WebRTC Leak

Some browsers leak your local IP via WebRTC even when using a VPN. This exposes your real internal address to any website that asks for it.

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Browser Fingerprint

Your browser exposes OS, screen size, timezone, language, and hardware details. Combined, these form a near-unique fingerprint trackable across sessions.

How to improve your score

MAC Address: Use MacSpoof to randomise your MAC address before connecting to any public network. This is the most effective single step for local network privacy.

WebRTC Leaks: Disable WebRTC in your browser settings, or use a browser extension like "WebRTC Leak Shield". Firefox lets you disable it via about:config → media.peerconnection.enabled.

Browser Fingerprint: Use a privacy-focused browser (Firefox, Brave) with fingerprint randomisation enabled. Avoid logging into sites across sessions on public networks.

VPN: A VPN hides your traffic from the local network operator but does not hide your MAC address or local IP from the router itself. Use MacSpoof + VPN together for the strongest local network privacy.

Fix your MAC address exposure in one click

MacSpoof randomises your MAC address before you connect, so no network can build a profile of your device across sessions.

Download MacSpoof Free