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Your browser is actually secretly betraying you. Some websites, advertising systems, and even tracking tools use browser fingerprinting, WebRTC connections, or IP addresses to identify who you are, where you came from, and what device you're using.
In this case, a website called BrowserLeaks has become a tool for many to examine themselves. It allows you to clearly see if your real IP address has been leaked, if WebRTC has revealed your location, and whether your browser fingerprint can be easily identified.
BrowserLeaks is a free website that checks your browser's privacy settings. Simply open it, and it will give you a checkup to see what information it's leaking to the outside world.
This information may include:
Your real IP address (even if you're using a VPN)
WebRTC connection information (potentially revealing your local or real IP address)
DNS requests (showing which websites you've visited)
Browser fingerprint data, such as Canvas, WebGL, Audio, Fonts, etc.
This is why more and more users, especially those managing multiple accounts, cross-border e-commerce, or those concerned about privacy, use BrowserLeaks to verify how well they've hidden their privacy. What was once a small tool for developers to debug has, by 2025, become a privacy checkup for many before going online.
The IP address is the identifier assigned to your device when you connect to the internet, similar to an ID card on the internet. Through the IP address, data can be correctly transmitted from the source device to the target device. Therefore, ensuring the proper use and protection of the IP address is crucial for network security.
BrowserLeaks detects your IP address, geolocation, and Internet Service Provider (ISP) details to reveal whether a website has exposed your real IP location.
You can use BrowserLeaks to check whether your Canvas fingerprinting is unique.
WebRTC (Web Real-Time Communications) is a real-time communication technology that allows web applications or sites to establish peer-to-peer connections between browsers without the need for an intermediary. WebRTC leak refers to the exposure of your real local and public IP addresses, even when using a VPN.
BrowserLeaks provides a WebRTC leak test and a tutorial on how to disable WebRTC.
WebGL fingerprinting is an advanced technique that creates a unique identifier based on the unique 3D rendering capabilities of a user's device, utilizing the Web Graphics Library to track and identify online users. WebGL fingerprinting poses certain security risks, including continuous tracking of users without their consent, providing detailed information about their devices, and bypassing privacy measures such as VPNs, incognito mode, or cookie blockers.
BrowserLeaks analyzes WebGL support, detailing graphics card info and GPU(Graphics Processing Unit) characteristics that contribute to fingerprinting.
Font fingerprinting technique can create a unique fingerprint that is difficult to spoof or alter, by measuring the dimensions of text and enumerating fonts and finding rendering differences. It also has some security issues.
BrowserLeaks identifies additional attributes that contribute to Font fingerprinting.
BrowserLeaks tests whether websites can access your device’s physical location using the browser’s geolocation API(Application Programming Interface).
Allow you to determine which features your web browser supports or lacks, and how modifying them may impact your browser's digital footprint.
Display your web browser's SSL/TLS capabilities and identify weak or insecure options. Test how the browser handles insecure mixed content.
Content filters are the connection between the browser and the visited web page, such as Tor Browser and AdBlockers. BrowserLeaks provides detectors to identify the usage of content filters.
Many people are confused when they first encounter BrowserLeaks. How do you use this website? I don't understand these data. Actually, it's not too complicated. It's more like a privacy checkup tool. As long as you know what's key, you can determine whether your network is safe or not.
Simply visit browserleaks.com, and it will automatically detect various information your browser can expose. No registration or download is required. The results are displayed as soon as you open the webpage.
Common tests include:
IP/DNS test: Checks if you are exposing your real location;
WebRTC test: Checks if a VPN is truly hiding your local IP address;
Fingerprint test: Displays unique browser parameters, such as fonts, system, resolution, and canvas.
The test results will list various information about you. The key is to check for any discrepancies.
For example:
If you're using a US VPN, but BrowserLeaks shows your IP is in Shanghai, it means your VPN isn't blocking anything.
If the WebRTC section shows your local IP (e.g., starting with 192.168), it may be exposing your real network environment.
If the fingerprint test shows "unique" or "identifiable," it means your browser fingerprint is too unique and easily identifiable by websites.
Once you know where the problem is, you can address it accordingly.
If it's a WebRTC leak → disable WebRTC in your browser settings or plugins, or use an anti-leakage browser that supports it.
If it's an IP/DNS mismatch → switch to a more stable VPN or proxy node.
If the browser fingerprint is too obvious → use an anti-detection browser like MoreLogin to make the fingerprint information more "natural" and harder to track.
So which statement is more accurate? It really depends on how you use it.
On forums like Reddit and PrivacyGuides, many privacy enthusiasts have mentioned that BrowserLeaks can indeed detect information exposed by the browser, such as IP address, WebRTC, Canvas, and Fonts, and these results are very intuitive. However, they also point out that BrowserLeaks only displays browser-level information leaks and may not reflect all the data actually identified by advertisers or anti-fraud systems. In other words, it can tell you what you've exposed, but it can't tell you what others can do with that information.
BrowserLeaks' detection logic is relatively traditional, primarily focusing on information leaks on the browser side (front end). However, many websites today use more sophisticated fingerprinting technologies, combining behavioral analysis (mouse movements, typing rhythm), encrypted fingerprints (more difficult to detect), and multi-dimensional data cross-referencing (such as combining IP, system, language, etc.). These are things BrowserLeaks cannot detect.
Therefore, some users feel it can only detect surface-level problems. It falls short when it comes to deeper tracking methods.
Absolutely. While not a perfect tool, BrowserLeaks remains the most intuitive and convenient initial privacy detection method.
It lets you immediately know:
Whether your VPN is malfunctioning;
Whether WebRTC is exposing your real IP address;
Whether your browser fingerprint is too obvious;
Whether your network settings match your expectations.
You can think of it as the first line of defense, helping you quickly identify problems. Anti-detection browsers like MoreLogin, on the other hand, are the second line of defense. It is responsible for truly disguising and obfuscating fingerprints, allowing you to avoid being identified at a deeper level.
After all that, many people will ask, How can I avoid exposing myself on BrowserLeaks? The key isn't zero exposure, but rather minimizing identifiable information.
These two problems are encountered by almost everyone.
Solution:
Use a stable, verifiable VPN or proxy (avoid free VPNs).
Disable WebRTC in your browser (this can be done through plugins or anti-detection browser settings).
Re-test with BrowserLeaks to see if your IP address is still exposed.
Many people only realize their VPN isn't working at this step.
BrowserLeaks' Fingerprint Tests are the most troublesome part because browser fingerprints are composed of a host of details, including operating system, language, resolution, font, Canvas, WebGL, and Audio. Even if you change just one thing, websites can still recognize it as your browser.
This is where the anti-detect browser Morelogin comes in. Tools like Morelogin can automatically spoof or randomize this fingerprint information, making each of your browser profiles look like a completely different device.
Real Canvas Fingerprint: Machine learning generates fingerprints from real users worldwide, making it more natural and secure.
End-to-End Encryption: Data is encrypted locally, with keys held only by the user to prevent leaks.
Six-Layer Encryption System: Multi-layered algorithm protection ensures secure data storage.
Local Data Encryption: Cookies and other files are encrypted and stored to prevent theft.
You can create multiple virtual browser environments. Each has an independent IP address, fingerprint, cookie, time zone, and system. Websites will recognize them as different users. This not only passes BrowserLeaks' fingerprint test, but also avoids being identified by advertising platforms or website risk control systems in actual use.
After adjusting the settings, return to BrowserLeaks and scan again.
If the results show:
IP and VPN match
No WebRTC leaks
Random or fuzzy fingerprint detection
Then your browsing environment is very secure.
Experienced users even regularly use BrowserLeaks to scan, and if a leak is found, they adjust their VPN or browser settings promptly. Like a security check-up, regular checks are always beneficial.
1. Preparation
If you don't have a MoreLogin account, you need to create one first(new users will automatically receive two free profiles). Enter the morelogin official website and click download in the upper right corner.
2. Create a Profile
After downloading MoreLogin, you will enter the main interface of the software. Click “+ New profile”, reach the page where the picture displays. Enable New Generation of Real Canvas Fingerprint and end-to-end encryption, and choose other profile information as needed.
3. Bind a Proxy
You can bind a proxy when creating a new profile. Or back to the main page, click the pen icon under the proxy information, then choose the proxy you want to bind.
4. Run the profile
Once you’ve set everything up, click Start, log in to your profile.
5. Test with BrowserLeaks
Enter the BrowserLeaks official website and select the test you want to check for data leaks.
·BrowserScan: Supports browser, IP, DNS leak detection, and more, and automatically detects multiple factors, displaying them in a concise manner within the same area.
·AmIUnique: Specializes in browser fingerprinting. You can view your own browser fingerprint and the uniqueness of your fingerprint over different days.
·Cover Your Tracks: Detects the impact of tracking links on user data security. By clicking the detection button, the test results are displayed and emphasized directly.
·Privacy.net: Check what data your web browser is exposing. Allows you to perform a test once, including basic Info, autofill leak test, user account tests, and more.
·IPQS: Equipped with advanced fingerprint recognition technology, allowing users to view their device fingerprint. It scans over 300 data points to ensure the identification of counterfeit devices, location spoofing, and more.
BrowserLeaks clearly shows us the privacy vulnerabilities that browsers can leak, such as your real IP address, WebRTC information, DNS requests, and browser fingerprints. These seemingly small pieces of data are enough to expose your identity and browsing history.
The most effective way to truly avoid leaks and easily pass the BrowserLeaks test is to use MoreLogin, an anti-detection browser tool. It can spoof your real fingerprint, encrypt data, and protect your privacy, allowing you to achieve a true balance between security and anonymity.
Q1: What is BrowserLeaks?
A: BrowserLeaks is a free privacy testing website that displays various information your browser exposes when visiting websites, such as IP address, WebRTC connection, DNS requests, browser fingerprint, etc.
Q2: Why can BrowserLeaks see my real IP address?
A: Mainly because the browser's WebRTC function directly exposes your local or real IP address in the background.
Even if you use a VPN, if WebRTC is not disabled, your real IP address may still be detected.
Q3: Are BrowserLeaks' test results reliable?
A: Its test results are based on real browser-level data and are very valuable for reference.
However, it mainly detects "surface leaks" and cannot fully reflect the deep tracking logic of advertising platforms or risk control systems. Therefore, it can be considered a "first-step self-testing tool."
Q4: How can I pass the BrowserLeaks test?
Use a stable VPN or proxy;
Disable or restrict WebRTC;
Use an anti-detection browser (such as MoreLogin) to spoof your browser fingerprint;
Regularly re-test to confirm no new leaks.
Q5: Does BrowserLeaks collect my data?
A: No. BrowserLeaks only displays information your browser automatically sends to websites; it does not store or upload this content.
Q6: Can using MoreLogin prevent leaks?
A: It can significantly reduce the risk.
MoreLogin effectively prevents IP, WebRTC, and fingerprint leaks through technologies such as real fingerprint spoofing, end-to-end encryption, and local data protection, helping you maintain "clean" results in BrowserLeaks tests.
Q7: How often should I use BrowserLeaks?
A: It is recommended to run a test before changing your VPN, browser configuration, or logging into sensitive accounts.
This can help you quickly discover new privacy vulnerabilities and adjust your settings accordingly.
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