What is Passive OS Fingerprint?

Getting Started

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Maria Devi2023-11-01

6 min

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Passive OS Fingerprint (TCP / IP Fingerprint, OS fingerprint, pOf) - a set of TCP/IP traffic parameters indirectly determining the user's operating system as well as the communication channel through which the internet connection is established. For a regular site user, the operating system of the computer and the Passive OS Fingerprint are usually the same.

The OS fingerprint you obtain by using the iProxy service is Linux Android. Despite the mismatch in fingerprints, services accept such mobile proxies, and some work better than usual, adding more trust.

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How does it work?

When a user connects to the Internet, the websites they access can request information through the browser about the device the visit was made from. The site can see the user's IP address, device operating system version, pOf, browser name and version, processor and GPU model, screen resolution, current battery level for laptops, tablets or phones, etc.

In order to make websites trust an online marketer working with multiple account more and establish the correspondence between their operating system and Passive OS Fingerprint, the iProxy team added a feature that lets you replace the service’s standard OS fingerprint.

The following fingerprint options are available:

Win XP
Mac OS
Win 78
Win 10
Nintendo
FreeBSD
FreeBSD 9

What devices does support the replace of pOf?

Our pOf replacement feature has been fully tested and guaranteed to work on:

Alcatel 1 5033D (Android 8.1.0, rooted via iProxy) – This is the device we specifically developed and validated this feature on.

Based on user feedback, it also works perfectly on:

Rooted Samsung devices
Rooted Google Pixel devices
Rooted Motorola devices

We recommend trying it on your rooted phone—in most cases, it should work without issues. Let us know if you need any assistance!

How to set up and replace pOf?

In the iProxy app, you need to install the Fingerprint feature, then select the fingerprint you want in your personal account. This feature works on BigDaddy Pro plan.