Browser Privacy & Security Tests

Check what your browser and network may expose online. Test WebRTC IP leaks, VPN privacy, IPv4/IPv6 exposure and other browser privacy signals with free online diagnostics.

2 Tools 100% Free Client-Side

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WebRTC Leak Test

Check whether WebRTC exposes your real IP address while using a VPN or proxy. Inspect WebR...

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DNS Leak Test

Test your connection for DNS leaks while using a VPN or proxy. Identify DNS resolvers, com...

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WebRTC Leak Test

DNS Leak Test

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WebRTC Leak Test

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DNS Leak Test

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Suite Overview

About Browser Privacy & Security Tests

Check what your browser and network may expose online. Test WebRTC IP leaks, VPN privacy, IPv4/IPv6 exposure and other browser privacy signals with free online diagnostics.

Key Advantages & Capabilities

100% Client-Side Privacy Testing

All WebRTC candidate probing and IP checks run locally in your browser memory without storing or logging IPs.

Actionable Leak Detection

Clear diagnostic status cards instantly tell you whether your real IP address is hidden or exposed.

Deep Technical Evidence

Advanced users can inspect detailed ICE candidate matrices, protocol types, STUN sources, and sanitized SDP strings.

VPN & IPv6 Consistency

Compare your normal HTTP connection IP against WebRTC-exposed addresses and optional expected VPN exit IPs.

How to Use the Browser Privacy & Security Tests Suite

Select a Privacy Diagnostic

Choose WebRTC Leak Test or IP & VPN Leak Test from the category grid.

Run the Interactive Probe

Click "Start Test" to initiate safe W3C WebRTC peer candidate gathering and HTTP IP checks.

Inspect Results & Technical Evidence

Review the high-level privacy verdict, then expand the technical evidence drawer to inspect ICE candidate details.

Browser Privacy & Security Diagnostics

Browser-based privacy diagnostic tools allow you to inspect what your browser and network layer expose online. By analyzing WebRTC peer connection behavior, STUN candidates, HTTP request headers, and IPv4/IPv6 address routing, these tools help identify potential VPN IP leakage, WebRTC candidate exposure, and network privacy mismatches.

Understanding WebRTC IP Exposure

WebRTC (Web Real-Time Communication) enables high-speed peer-to-peer audio, video, and data streaming natively in web browsers. However, WebRTC uses STUN (Session Traversal Utilities for NAT) servers to discover connectivity paths. If a VPN or proxy fails to handle STUN requests properly, WebRTC may reveal your actual public IP address alongside your VPN address.

Privacy-Safe Local Analysis

All WebRTC candidate processing, STUN reachability checks, and address comparisons take place 100% locally inside your browser memory sandbox. EasyToolio does not upload, log, or store raw ICE candidates, SDP strings, or IP address histories.

Zero Data Storage

100% Client-Side Computation

All operations execute securely within your local browser sandbox. Sensitive data and financial inputs are never stored or logged on remote servers.

No Server Logs or Tracking

Zero Account or Signup Barrier

High Precision Mathematical Output

100% Private & Free Forever

2 Tools in Suite

100% Free Access

Instant Calculations

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Knowledge Base

Frequently Asked Questions

Everything you need to know about Browser Privacy & Security Tests tools, usage, and privacy.

A WebRTC leak occurs when your web browser's WebRTC API exposes your real public or private IP address to websites even while connected to an active VPN or proxy service.

WebRTC uses Interactive Connectivity Establishment (ICE) to discover direct peer-to-peer connection candidates. During candidate gathering, WebRTC queries STUN servers which reflect your public IP address back to the browser.

Yes, if your VPN application or browser extension does not route or block WebRTC STUN requests properly, WebRTC can reveal your true ISP-assigned IP address alongside your VPN exit IP.

Modern browsers (such as Chrome and Firefox) generate mDNS (multicast DNS) host candidates formatted as randomized UUIDs ending in .local (e.g., xxxx.local) to hide your private LAN IPv4 address without breaking WebRTC functionality.

No. mDNS candidate masking (xxxx.local) is a browser privacy defense designed to prevent websites from fingerprinting your local network topology.

An IP leak happens when network traffic, DNS requests, or WebRTC signals bypass your encrypted VPN tunnel, exposing your true public IP address to destination servers.

You can prevent WebRTC leaks by enabling WebRTC protection in your VPN desktop software, using browser privacy extensions, or setting media.peerconnection.enabled to false in Firefox config.

No. EasyToolio performs all WebRTC candidate analysis and IP comparisons 100% client-side inside your browser sandbox. We never persist, store, or log raw IP addresses or ICE telemetry.

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