How to Check Your Antidetect Browser for Fingerprint Leaks
Even if a configuration seems ideal, that is no guarantee it will pass an anti-bot check. In this text, we will explain why you should regularly test your anti-detect browser, what oversights users make, and how to select tools that truly help preserve anonymity.
Why Test Anti-Detect Browser Settings
You can mask headers and hide your IP, but one unnoticed inconsistency and your account will fall under suspicion, and your traffic will be blocked. Anti-bot systems are not interested in how confident you are in your setup—they only see what the script outputs. Before going live with traffic, it is important to check how the profile looks from the outside. This is the only way to understand if the fingerprint is attracting unnecessary attention.
Common User Mistakes
Many are convinced that their browser initially looks "like a normal person's," but they are wrong! They do not test the configuration, relying on settings that seem normal. However, anti-bot systems do not look at the interface; instead, they look for inconsistencies. A fingerprint without noise, hardware specifications that do not match the OS, reused profiles, or trifles like the absence of audio devices and strange resolutions—all of this easily betrays the spoofing.
Tools for Testing Fingerprints
We checked how the most famous fingerprint scanners work and compiled a review to help you choose the right tool for a specific task. Below is a list of services where you can test your browser and clearly see what it "says" about you.
1. Browserleaks.com
Overview
One of the most advanced tools for analyzing digital fingerprints. Checks are broken down into tabs: Canvas, WebRTC, DNS, geolocation, and others. The interface is simple, but it displays all data exactly as JavaScript reads it. No scores or scales, just raw values. This approach suits those who already understand exactly what to look for.
Capabilities
Shows rare and non-standard vectors: WebGL renderer, ClientRects, battery level, JA3 hashes, TLS ciphers. There is access to Canvas and AudioContext hashes, font checks, and media queries. The WebRTC test is particularly accurate, showing both public and local IPs, even behind a proxy.
Who It’s For
Experienced users who configure and compare profiles in anti-detect browsers. If it is important to see the full picture and compare with "clean" fingerprints, Browserleaks provides maximum transparency. It will be difficult for beginners, but for technical diagnostics, it is one of the most accurate tools.
2. Pixelscan.net
Overview
Pixelscan helps you understand how plausible your browser looks from the perspective of anti-bot systems. Unlike services that simply output technical parameters, this service evaluates how much your configuration resembles the behavior of a normal user, checking the correspondence between IP, language, time zone, and screen resolution, tracking potential inconsistencies. The logic mimics the basic filters often used by anti-bot platforms.
Capabilities
Covers parameters such as Canvas, AudioContext, WebGL, screen size, and language/IP location correspondence. It flags discrepancies—rare Canvas hashes or situations where the browser language does not match the IP region. The service also signals if a profile looks too "clean," which may indicate a spoofing attempt. The service shows how much your configuration differs from the typical one—and how easy it would be to track such a profile. However, it does not suggest exactly what to fix, so it won't always be easy for beginners to interpret the results.
Who It’s For
Developers, multi-account operators, and those using anti-detect browsers. Especially useful when launching new accounts, ad campaigns, or working with traffic through proxies. If it finds discrepancies in time, language, or IP, an anti-bot system will likely notice them too. It pairs well with browsers like Dolphin and Incogniton, where maintaining a stable and plausible profile is important.
3. Whoer.net
Overview
Analyzes key privacy parameters: IP address visibility, DNS leaks, open ports, and inconsistencies in browser settings. Instead of "raw" data, you get a simple privacy score, for example, "85% anonymity," which is easy to understand at a glance. Results are displayed instantly, which is convenient when checking a VPN or testing a configuration on a new network.
Capabilities
The service focuses on basic signals: WebRTC leaks, proxy and VPN detection, user-agent, and time zone mismatches. It signals if the system time or language does not match the claimed location. Advanced vectors, like Canvas or WebGL, are not checked, but major vulnerabilities are highlighted clearly with a risk level indication. This is not a tool for analyzing fingerprint uniqueness, but it is useful for identifying typical setup errors that might expose you.
Who It’s For
Suitable for beginners and those who need to quickly check settings. Useful after installing a VPN, configuring an anti-detect browser, or for light monitoring of multiple accounts. It is not overloaded with technical details and gives a simple answer: "everything is ok" or "there is a problem." Although it does not replace advanced tools, it is excellent as a first step in privacy checking.
4. Amiunique.org
Overview
The idea is simple: even with a VPN and blockers enabled, a unique fingerprint still gives you away. Amiunique does not look for vulnerabilities directly; it compares your profile with thousands of others and shows how much you stand out from the crowd.
Capabilities
The service analyzes over 50 parameters: from user-agent and screen resolution to Canvas, WebGL, AudioContext hashes, fonts, and language settings. For each parameter, it shows how rare it is, i.e., how often it occurs in other users. You can also see how browser updates or extension installations have affected the fingerprint. There is a browser add-on that allows for such checks regularly.
Who It’s For
The tool is useful for privacy researchers, stealth configuration developers, and those who want to understand how much their profile stands out. The service helps assess whether the fingerprint blends in with the mass or, conversely, attracts attention. Especially convenient for tracking how small changes affect anonymity over time.
5. Botchecker.net
Overview
The tool launches automatically upon page load and immediately conducts a behavioral and structural check without user participation. The interface is simple: results are displayed as "Passed" or "Detected" flags. There are no scores, graphs, or interpretations; only what anti-bot systems actually record during a session check is displayed. Such minimalism helps focus on the essence.
Capabilities
Looks for WebDriver flags, signs of headless mode, atypical navigator objects, and traces of frameworks like Puppeteer or Playwright. Compares the claimed platform and browser data with real device characteristics: RAM size, processor, etc. Additionally checks JavaScript events, font rendering, and the presence of multimedia devices. The tool evaluates only behavioral and structural automation signals output by strings.
Who It’s For
Suitable for those configuring stealth profiles or testing automated environments before launch. Developers, QA specialists, and anti-detect experts use Botchecker to simulate a real check by anti-bot systems.
6. fv.pro
Overview
Mimics the behavior of anti-bot systems and launches immediately upon page load. The system provides a detailed report: each parameter is assigned a risk level. The interface features an anonymity color scale: green signals everything is fine, yellow is borderline, red causes suspicion. This format helps quickly notice, for example, a conflict between a mobile user-agent and a desktop resolution or a time discrepancy. Unlike older services, FV.PRO works faster and better understands exactly what might "expose" a profile.
Fingerprint Capabilities
Checks Canvas, WebGL, AudioContext, system language, time zone, memory size, fonts, and screen size. Evaluates how consistent everything is. Plus, it scans open ports, allowing you to notice leaks through a VPN or proxy. FV.PRO catches risks in combinations and non-standard pairings. In the extended report, you can see rare hashes, plugin mismatches, and locale conflicts.
Who It’s For
Designed for those working with anti-detect at a pro level: developers, researchers, and advanced users. Suitable for the final profile check before account creation or automation launch. Paired with PixelScan, it provides a second, deeper level of verification, no longer formal, but close to how detection really works in production.
7. privacy.net
Overview
Shows how anti-bot systems evaluate browser sessions in practice. Immediately after loading, you receive a structured report with "raw" fingerprints and color-coded risks. This approach helps quickly catch typical conflicts, for example, when a desktop resolution does not match a mobile user-agent or the time zone does not match the interface language.
Capabilities
Collects data on key parameters: Canvas, WebGL, AudioContext, language, time zone, memory size, used fonts, and display dimensions. Port scanning is conducted separately, helping to identify leaks through proxies or VPNs. The main advantage of privacy.net is that it evaluates how logical and consistent the entire configuration looks. In the extended report, you can find signals rarely seen on the surface: rare hashes, plugin mismatches, locale conflicts.
Who It’s For
For experienced users who need to bring a profile to a state as close to "natural" as possible. Especially useful on the home stretch before launching automation, ad campaigns, or working with sensitive accounts. Also suitable for privacy researchers and those involved in browser development.
8. iphey.com
Overview
A utility for quick and accurate browser fingerprint diagnostics. The check starts immediately upon entering the page, results are output line by line: each parameter is either "passed" or "detected." No graphs, scores, or hints, just facts. This tool does not explain, but immediately shows weak spots. If there are leaks in the configuration related to automation, iphey will detect them.
Capabilities
The scan proceeds in two directions at once: classic fingerprint and automation signals. Canvas, WebGL, AudioContext, and screen resolution are checked. In parallel—WebDriver, Chrome debug APIs, Puppeteer, JavaScript timing issues. Network data is also recorded: IP and its geolocation, time zone, device characteristics (CPU, RAM), proxy usage, and presence of a microphone/camera.
Who It’s For
This tool is chosen by those working with risky profiles—anti-detect developers, multi-account operators, stealth configuration testers. It is often used in conjunction with FV.PRO and PixelScan as a final check before launch. It is not for beginners because iphey does not teach, but checks like a pro.
9. DeviceInfo.me
Overview
A tool for those who want to see everything the browser exposes to the outside. The check begins immediately upon opening the page: shows IP, provider, system parameters, headers, and available APIs. This is a system report without embellishment, ideal for those who want full transparency and a starting point before beginning configuration.
Capabilities
Collects almost everything a script can pull: video card manufacturer, WebGL renderer, Canvas and AudioContext hashes, processor, RAM size, battery charge, system language, fonts, screen resolution, and even the presence of a microphone or camera. Texture and shader sizes, activity of APIs like WebSockets and localStorage are checked. All checks happen on the client side; data is not sent anywhere and is not saved.
Who It’s For
Those who configure anti-detect profiles manually, look for leaks, or want to ensure the browser isn't exposing too much. Especially useful if it is important for you to understand exactly how your configuration looks to websites.
Key Parameters for Checking
What characteristics form a browser fingerprint and how are they connected? Understanding this will help configure a profile so that it looks logical, natural, and does not arouse suspicion.
Canvas
Every browser renders graphics slightly differently. If you have a rare or static Canvas hash, the profile may stand out.
WebGL
The specified video card must match what is expected from your system. Inconsistencies often betray emulation or device spoofing.
AudioContext
Sound is processed with microscopic deviations; this also forms a unique fingerprint that can be tracked between sessions.
Time Zone and Language
They must match your IP and system locale. Mismatches are one of the most frequent triggers on the anti-bot side.
User-Agent and Platform
The specified OS must correspond to the hardware. For example, a macOS agent with Windows drivers is an alarming signal.
Media Devices
If a user has absolutely no camera or microphone, it looks unnatural. Such profiles inspire less trust.
Fonts and Screen Resolution
Strange or inconsistent values may indicate a virtual machine or a fake screen configuration.
WebRTC
This technology can reveal your real IP address even if you use a VPN or proxy. If it is not disabled or masked, the site can bypass the masking and see the real location.
JavaScript Behavior
Automation is often exposed through scripts: delays, skipped events, identical responses—all this can give away headless mode or a bot.
How to Increase Anonymity
Tune Key Fingerprint Values
Sites can collect a lot about you simply by reading Canvas, WebGL, Audio, and WebRTC values. These parameters form your digital fingerprint, and if they look suspicious, there is a high risk the session will not pass verification. In Linken Sphere, you get full control: you can manually tune each vector and immediately check the result using built-in tests.
Synchronize the Environment
French IP and Russian time zone? For an anti-bot, this is a red flag. To look like a normal user, ensure that the language, screen resolution, time zone, and OS match the proxy location. Linken Sphere does this automatically—your session will look as if a user simply opened the browser and started surfing.
Don't Strive for Perfection
Too clean means suspicious. Perfectly cleaned fingerprints almost always look fake. In hybrid mode, Linken Sphere preserves native Canvas and WebGL but subtly varies internal parameters—for example, memory size and GPU type. The resulting fingerprint turns out slightly "rough"—which is exactly how real profiles look.
Switch Profiles Smartly
The longer you work with one configuration, the more noticeable your pattern becomes. It is safer to rotate profiles regularly. In Linken Sphere, this is done with one click: cookies are isolated, and you choose whether to synchronize data or keep it local. The cleaner the transition, the lower the probability of being tracked.
Maintain Stability If Needed
In some cases, stability is more important than masking. If you manage long-lived accounts, the fingerprint must be the same at every launch. In Linken Sphere, this is implemented through RDP access, clone sessions, and identical hardware. Starting with version 9, the entire team can use such stable environments at once.
Manage Data Yourself
Where cookies are saved, how sessions are protected, and where notes lie—all this remains under your control. By default, sensitive data is stored locally and encrypted. Metadata is synchronized for convenience, but everything else remains only with you—unless you authorize otherwise.
Use Real Fingerprints, Not Noise
The idea of spoofing everything indiscriminately no longer works. Modern anti-bot systems quickly calculate fakes. It is much more effective to use real hardware characteristics: OS, GPU, memory size. Linken Sphere collects the fingerprint exactly like this: without chaos, without fakes—simply a native profile that raises no questions.
Final Conclusions
-
Anti-bot systems do not look at individual parameters, but at how they combine. If they see a conflict between them, you are in the risk zone.
-
Configuration changes over time: the browser updates, a plugin is added, and the fingerprint is no longer the same. Without regular checking, you can miss the moment.
-
Before launching traffic, check how your session looks from the outside. Linken Sphere provides the necessary tools to test everything and eliminate unnecessary signals.
