Whether in the e-commerce sector, social media platforms, advertising placements, or affiliate marketing, multi-account operations have become a common operational strategy. However, the implementation of this strategy may face a neglected risk, that is, the leakage of browser fingerprints!

Browser fingerprints are unique sets of information composed of your device and browser settings. If you use the same device and browser while operating multiple accounts, then the browser fingerprints of these accounts will be identical. This could attract the attention of the platform, as it may be considered as brushing or fraudulent behavior, leading to account bans.

For example, on e-commerce platforms, sellers often create multiple accounts to increase product exposure and sales. However, if the browser fingerprints of these accounts are the same, they may be recognized as spam accounts by the platform, resulting in restrictions or bans. Similarly, on social media platforms, marketers also create multiple accounts to promote products or brands. If the browser fingerprints of these accounts are the same, they may be recognized as fraudulent behavior by the platform, thereby affecting marketing results and revenue.

If you are running multiple accounts at scale, pairing a fingerprint browser with Ziny’s residential proxies is the most effective combination. They are clean, unique IPs that match the regional identity of each browser profile keep accounts genuinely separate in the eyes of every platform.

Anti-Detect Browsers Are Not a Panacea

Even though many users have become aware of the risks of browser fingerprinting and have started using fingerprint browsers to mask their real device information, this does not mean that their accounts are completely safe. Due to the different technologies used by different fingerprint browsers, or improper use, personal information may still be leaked, or a false browser fingerprint may be generated. This could lead to the user’s device being marked as suspicious by the website platform, or multiple accounts being marked as associated.

Therefore, when using a fingerprint browser, users need to utilize a tool to:

• Check if their browser fingerprint is authentic
• See if the local real IP address will be leaked
• Compare the fingerprint of the fingerprint browser with the browser fingerprint of the real device
• Compare whether there are many repetitions in the browser fingerprints of different accounts

Confirming authenticity before operating multiple accounts is essential. For a broader look at how anti-detect browsers and proxies work together, the guide to the best anti-detect browsers covers how fingerprint spoofing and proxy pairing combine to keep accounts genuinely isolated.

Using BrowserScan to Detect Browser Fingerprints

By accessing browserscan.net with a fingerprint browser or any other browser, you can understand the complete browser fingerprint just by waiting a few seconds.

Overview

In this section, you will check the authenticity of the browser fingerprint, giving you a rough understanding of the current browser fingerprint. The main information is as follows:

• IP address
• Postal code of the IP address location
• Geolocation of the IP address (Country, Latitude and Longitude)
• Time zone of the IP address location
• Internet service provider of the IP address
• Browser version being used
• Operating system of the current device
• Whether a proxy server is being used

If the authenticity of the browser fingerprint is only 90% or lower, then you need to continue to look at more detailed fingerprint information.
(Values in Red Font are areas of deduction)

IP Address

BrowserScan will use WebRTC to detect if your real IP address will leak. This is because WebRTC can leak the user’s real IP address. As shown in the figure, the IP address visiting BrowserScan is from the United States, but WebRTC leaked the real IP address (Singapore). In the eyes of some platforms, this user’s behavior may be abnormal, especially on some social media platforms.

When using an anti-detect browser, always check this section first. A residential proxy with WebRTC leak protection eliminates this risk at the source, your traffic originates from a genuine ISP-assigned IP that matches the location your browser reports. If you are seeing leaks despite having a proxy configured, the proxy errors troubleshooting guide covers WebRTC leak causes and fixes specifically.

Geolocation

This part can understand the attribution of an IP address (country, state/region, city, postal code), latitude and longitude, and other information. If you need to understand more accurate geolocation, you can click “Show my location on the map” to view. (It can be displayed normally after allowing BrowserScan to obtain the current location information.)

Browser

This part is mainly to view browser-related information, such as the operating system and version used by the current user, the type and version of the browser.
The information about UserAgent, browser plugins, and other information.

Hardware

This part is mainly to view hardware-related fingerprint information, such as GPU information, memory size, CPU concurrency, screen resolution, media device fingerprints, Canvas fingerprint, WebGL fingerprint, etc.
For example, when the fingerprint browser uses the UserAgent of Mac OS, if the fingerprint browser does not simulate the real Apple computer’s GPU information, then the hardware fingerprint information will not match the UserAgent information. This kind of abnormal browser fingerprint will arouse the suspicion of the platform.

Software

The software part is mainly to view the timezone of the IP, check the local time of the IP address location, the language used by the browser, font fingerprint, whether Do Not Track, Cookie and other functions are enabled.
When an IP address is located in the United States, the timezone and local time should also be in the United States, not in other countries.

If you are running automated scripts alongside your browser profiles, BrowserScan also checks whether your browser is exhibiting bot-like behaviour. Most platforms actively screen for automation signatures, so this check is worth running before any large-scale operation. For social media automation specifically, the proxies for social media automation guide covers how to structure your proxy and browser setup across TikTok, Instagram, Facebook, and Reddit without triggering bot detection.

Port Scanning

Port scanning not only risks exposing your personal information but also carries the risk of being hacked. You can use port detection to see if there are any open ports.

Other Tools

In addition to detecting browser fingerprints, BrowserScan also provides other tools. Previously introduced the automated detection tool and port detection tool. In addition, BrowserScan also offers IP address lookup and Cookie format conversion tools.

IP Address Lookup

BrowserScan’s IP address lookup feature includes seven major IP databases and can query the ownership information of an IP address in seven different IP databases. Due to database synchronization delays and differences, it is possible that the same IP address will yield different ownership results when queried in different IP databases. Therefore, when you are operating multiple accounts on a website, and the website is sensitive to changes in the IP address of the account, this feature can come in handy. If the proxy IP address used appears to have different ownership, then you might need to consider changing it.

Cookie Converter

You can check whether there are any missing fields in the Cookie.

BrowserScan supports converting Cookies from Netscape format to JSON format.

Conclusion

BrowserScan is a powerful fingerprint detection tool that gives you a clear picture of how your browser environment appears to platforms, and where it falls short. Think of it as a health check for your account setup.

If you are currently using anti-detect browsers like AdsPower, Multilogin, or GoLogin, run a BrowserScan check regularly. Based on what it flags, you can apply targeted fixes to make each account environment more realistic and more secure.

The most effective setup combines a well-configured anti-detect browser with genuinely clean, region-matched proxy IPs. Ziny’s residential proxies are built for exactly this, 30 million+ verified IPs, city-level geo-targeting, and no blacklisted addresses. For affiliate marketing operations specifically, where account health and traffic authenticity directly affect revenue, the affiliate marketing proxy guide covers how to structure the full setup from browser profile to proxy pool.