NetPeek

Developer, Web & Technical Utilities
Written By Harry Negron

Network privacy utility

IP Address & Privacy Leak Test

Check the public IP address websites can see, inspect approximate ISP and location details, test common browser privacy signals, and look up public IPv4 or IPv6 addresses.

Preparing test Basic public IP information loads automatically.
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Browser Privacy Leak Test

Basic IP information appears automatically. WebRTC and browser checks start only when you select Run Leak Test. Results stay in this browser and no persistent fingerprint ID is created.

Loading the public IP check. Browser checks have not run yet.

Overall Privacy Score

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Not tested

Run the leak test to review WebRTC, timezone, browser, storage, and fingerprinting signals.

Test Scope

Public IP
The public IP check is loading automatically.
WebRTC
Not tested
Browser signals
Not tested
DNS
A complete DNS leak test needs a controlled external DNS test service.

Public IP Exposure

Loading

Shows the public IP, ISP, ASN, approximate location, and available proxy or VPN signals.

Your public IP result will appear here after the automatic check finishes.

Suggestion: Use a VPN or proxy when you do not want websites to see your normal public IP.

WebRTC Exposure

Not tested

Checks whether WebRTC reveals local or alternate network candidates.

Run the leak test to check WebRTC.

Suggestion: Use VPN WebRTC protection or browser controls when unexpected candidates appear.

Timezone & Language

Not tested

Compares browser timezone and language clues with available IP location data.

Run the leak test to compare location clues.

Suggestion: Match browser settings to a chosen VPN location when consistency matters.

Browser & Device Signals

Not tested

Reviews browser, platform, screen, viewport, pixel ratio, and touch clues.

Run the leak test to inspect device signals.

Suggestion: Privacy-focused browser settings can reduce fingerprinting detail.

Privacy Controls & Storage

Not tested

Checks cookies, localStorage, sessionStorage, Do Not Track, and Global Privacy Control.

Run the leak test to inspect browser privacy controls.

Suggestion: Review cookie, storage, and privacy-signal settings in your browser.

Canvas & WebGL

Not tested

Checks whether graphics surfaces that can contribute to fingerprinting are available.

Run the leak test to inspect graphics signals.

Suggestion: Anti-fingerprinting browser settings can limit graphics-based detail.

DNS Leak Limitation

Limited

A true DNS leak test requires controlled DNS queries or an external DNS test service.

This browser-only app provides a limitation notice rather than claiming a full DNS test.

Suggestion: Use a dedicated DNS leak service when DNS exposure is critical.

Harry Negron

Harry Negron is the CEO of Jivaro, a writer, and an entrepreneur with a background in science, technology, and digital publishing. He holds a B.S. in Microbiology and Mathematics and a Ph.D. in Genetics, with a specialization in biomedical sciences. His work spans finance, science, health, gaming, and technology, and his projects include free apps, automation tools, and large-scale search utilities. Originally from Puerto Rico and based in Japan since 2018, he brings an international perspective to Jivaro’s content, research, and tools.

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