A browser fingerprint is a set of browser and device details that websites can read, including your browser version, operating system, screen size, fonts, timezone, language, canvas, and graphics data.

In Multilogin, each browser profile keeps its own fingerprint, cookies, proxy settings, and saved session data. This helps keep web account activity separated between profiles.

➡️ To check a browser fingerprint, start a Multilogin browser profile → open Whoer IP or another fingerprint checker → and look for signals that don’t make sense together.

Why browser fingerprints matter

Websites don’t only look at cookies. They can also read browser and device details like screen size, timezone, language, fonts, graphics data, and operating system.

A couple of shared values are normal. Problems are more likely when several signals contradict each other or create a setup that wouldn’t normally exist on a real computer.

For example, a profile may look inconsistent if it reports:

• Hardware that isn’t available on the selected device
• Fonts from a different operating system
• A camera on a device model that doesn’t include one
• A proxy location that doesn’t match the timezone or language

Multilogin generates realistic combinations of browser, operating system, hardware, fonts, screen, and graphics data. Canvas results also stay stable for the same profile and website.

The goal is not to make every profile randomly different. The goal is to keep each profile realistic, stable, and internally consistent.

How to check your browser fingerprint

Want to see what your browser profile is showing? Use these tools to spot mismatched signals before they become a problem:

• Whoer IP: check your IP address, location, timezone, and basic browser signals (default Multilogin checker)
• Pixelscan: check browser fingerprint consistency and possible mismatches
• BrowserLeaks: review detailed browser, device, WebRTC, canvas, font, and system signals

Here’s the process:

1. Start your Multilogin browser profile
2. Open one of the tools above inside that browser profile
3. Check whether the IP address and location match your proxy setup
4. Check whether the location, timezone, and language make sense together
5. Review the screen, fonts, canvas, and graphics information
6. Adjust the relevant profile or proxy setting if you find a mismatch
7. Restart the profile and run the test again

How to understand common checker results

Fingerprint checkers help you find possible inconsistencies. They don’t guarantee how another website will evaluate a profile.

IP, location, or timezone mismatch

Check the proxy or VPN setup first.

For example, a US proxy with a distant timezone may be worth reviewing.

Canvas warning

Websites can draw an invisible image in the browser and read the result. Small differences in the output are known as canvas fingerprinting.

The same profile should return a stable canvas result when the same website reads it again. If a checker reports inconsistent results, restart the profile and repeat the test.

Font warning

The fonts visible to websites should match the operating system represented by the browser profile.

If a checker reports fonts from another operating system, review the profile’s font and operating system settings.

WebGL or graphics warning

WebGL checkers can inspect the graphics vendor, graphics card, and other rendering values.

Check whether the reported graphics information makes sense for the profile’s operating system and hardware configuration. Avoid changing unrelated settings at random.