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Multilogin's Built-in Passive Operating System Fingerprint Masking (TCP/IP Fingerprint)
Author Chloe P (Updated on March 5, 2026) Updated on March 5, 2026
What is a TCP/IP fingerprint?
Websites can identify a device's operating system (OS) by analyzing network traffic patterns. Each operating system has a unique way of handling network data (TCP/IP stack), and creating operating system fingerprints allows for passive detection—thus mitigating risks.
How to Check Your Operating System Fingerprint
You can check this fingerprint under 'TCP/IP Fingerprints' on browserleaks.com/ip. But keep in mind:
- Using a global IP? Your global IP server repackages your network data, which may cause the OS fingerprint to differ from your real fingerprint.
- Running Multilogin on a virtual machine? No matter what OS you set in the profile, the test may show your actual operating system.
How to Conceal TCP/IP Fingerprints
TCP/IP fingerprinting occurs at the connection layer, so Multilogin cannot change it. But don’t worry—most websites ignore this detail, because mismatches caused by network settings and devices are very common. Want to hide your operating system fingerprint? Some global IP providers (such as iproxy.online) specifically hide this kind of information.
In this article
- What is a TCP/IP fingerprint?
- How to check your operating system fingerprint
- How to hide a TCP/IP fingerprint
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