What is a Browser Leak?
Imagine you are wearing a mask (a VPN) at a party. You think no one knows who you are. But then, you start talking with your normal voice, or someone notices your unique shoes. That is exactly what happens with Browser Leaks. Even if your IP address is hidden, your browser might give away your real home address or your computer's serial number through tiny technical gaps. AirOI Checker is here to help you find and plug those holes.
WebRTC Leak
WebRTC is for video chats, but it has a nasty habit of shouting your real IP address even when you are on a VPN. It's the #1 reason for privacy failure.
DNS Leak
If your DNS isn't secure, your Internet Provider (ISP) can still see every single website you visit, even if you are using a secure tunnel.
The 3 layers of Browser Security
To stay truly safe, you need to watch three different areas:
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The Network Layer: This is your IP address. Always check if WebRTC is "leaking" your real location.
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The Hardware Layer: This is your GPU and Screen. Sites use Canvas Fingerprinting to create a permanent ID for you.
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The Software Layer: This includes your fonts and timezone. These help websites "narrow down" who you are.
Frequently Asked Questions
Can Incognito mode stop these leaks?
No. Incognito mode only hides your history from your family. It does not stop WebRTC from leaking your IP or websites from seeing your hardware ID.
How can I fix a WebRTC leak?
The best way is to use a privacy browser like Brave or install an extension like "uBlock Origin" and enable the "Prevent WebRTC from leaking local IP" setting.
Is a low privacy score bad?
Yes! On AirOI Checker, a high score means we found many leaks. You want your score to be as low as possible to be truly safe.