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Fingerprints

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What Gets Fingerprinted

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Consistency

• OS match: A Win32 platform gets Windows fonts, Windows UA, DirectX WebGL
• Hardware match: Low hardwareConcurrency (2) gets lower deviceMemory (4)
• Geo match: US proxy gets en-US locale and America/* timezone
• Version match: All Chrome version strings are identical across properties

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Fingerprint Modes

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Auto (Recommended)

const session = await client.sessions.create({
  fingerprint: 'auto',
});

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Custom

const session = await client.sessions.create({
  fingerprint: {
    platform: 'MacIntel',
    locale: 'en-US',
    timezone: 'America/New_York',
    viewport: { width: 1440, height: 900 },
  },
});

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From Profile

const session = await client.sessions.create({
  profileId: 'prof_x9y8z7w6', // Uses profile's fingerprint prefs
});

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Detection Tests

• ✅ CreepJS — Advanced fingerprinting
• ✅ FingerprintJS — Industry standard
• ✅ BotD — Bot detection
• ✅ nowsecure.nl — Stealth test
• ✅ sannysoft.com — Comprehensive checks