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Passive OS Fingerprint Masking (TCP/IP Fingerprint)

Understanding OS Fingerprinting

Operating systems can be identified through analysis of network traffic patterns. Each OS implements the TCP/IP stack differently, creating a unique "fingerprint" in network packages. This fingerprint-based identification method is called passive OS fingerprinting because it doesn't require sending active requests.

Testing Your TCP/IP Fingerprint

You can check your device's TCP/IP fingerprint by:

  1. Visit BrowserLeaks
  2. Scroll to the "TCP/IP Fingerprint" section
  3. Analyze the detected operating system

Common Scenarios

Expected Results

ScenarioTypical ResultExplanation
Using a ProxyDifferent OS than actualProxy servers repack network packages
Running on VMOriginal OS detectedVM networking may expose host OS
Important Note

TCP/IP fingerprint is a connection-level characteristic that Indigo cannot modify directly. Many websites don't heavily weight this parameter in their detection systems due to common legitimate mismatches.

Why Mismatches Are Normal

Several factors can cause TCP/IP fingerprint mismatches:

  • Network devices
  • Proxy services
  • VPN configurations
  • Corporate networks
  • Cloud services
tip

Mismatches between TCP/IP Fingerprint and actual OS are common in normal internet traffic and usually don't indicate suspicious activity.

Masking Solutions

While Indigo cannot directly modify TCP/IP fingerprints, you have several options:

The most effective way to mask your TCP/IP fingerprint is using specialized proxy services that offer fingerprint masking capabilities, for example, iproxy.online