Advanced Configuration

Virtual Browser exposes detailed options for fingerprints, networking, and performance. This guide explains the main knobs so you can build stable, realistic profiles.

Fingerprint parameters

Hardware

Screen resolution

{
  "screen": {
    "width": 1920,
    "height": 1080,
    "colorDepth": 24,
    "pixelDepth": 24,
    "availWidth": 1920,
    "availHeight": 1040
  }
}

• width / height: Use common resolutions (1920×1080, 1366×768, 2560×1440, 3840×2160)
• colorDepth / pixelDepth: Usually 24 or 32
• availWidth / availHeight: Usable area excluding taskbar

Memory & CPU

{
  "deviceMemory": 8,
  "hardwareConcurrency": 8
}

Typical ranges: 2–4 GB / 2–4 cores (low), 8–16 GB / 4–8 cores (mid), 16–32 GB / 8–16 cores (high).

Browser identity

User-Agent

{
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
}

Match a current stable Chrome build; avoid very old versions.

Language & timezone

{
  "language": "en-US",
  "languages": ["en-US", "en"],
  "timezone": "America/New_York",
  "timezoneOffset": 300
}

Align with proxy region (e.g. zh-CN + Asia/Shanghai, en-US + America/New_York).

Advanced fingerprint

Canvas

{
  "canvas": {
    "noise": 0.1,
    "randomize": true,
    "preserveRatio": true
  }
}

WebGL

{
  "webgl": {
    "vendor": "Google Inc. (Intel)",
    "renderer": "ANGLE (Intel, Intel(R) UHD Graphics 620 Direct3D11 vs_5_0 ps_5_0)",
    "noise": 0.05
  }
}

Fonts

{
  "fonts": {
    "system": ["Arial", "Calibri", "Segoe UI"],
    "web": ["Roboto", "Open Sans"],
    "fallback": "Arial"
  }
}

Proxy configuration

HTTP / HTTPS

{
  "proxy": {
    "type": "http",
    "host": "proxy.example.com",
    "port": 8080,
    "username": "user",
    "password": "pass",
    "protocol": "http"
  }
}

SOCKS5

{
  "proxy": {
    "type": "socks5",
    "host": "socks.example.com",
    "port": 1080,
    "username": "user",
    "password": "pass"
  }
}

Rotation (examples)

• By time: switch every N seconds
• By request count: switch after N requests
• Smart: health checks and failover

Match proxy country/city to fingerprint timezone and language.

Performance tuning

{
  "concurrency": {
    "maxBrowsers": 10,
    "maxTabs": 50,
    "maxWorkers": 4
  },
  "cache": {
    "maxSize": "500MB",
    "ttl": 3600000,
    "cleanupInterval": 300000
  }
}

Lower maxBrowsers if RAM is tight; clear cache periodically.

Security-related options

{
  "privacy": {
    "blockTrackers": true,
    "blockAds": true,
    "blockFingerprinting": true,
    "blockWebRTC": true
  },
  "isolation": {
    "storage": "separate",
    "cookies": "isolated",
    "cache": "isolated"
  }
}

Config templates & import/export

1. Select profiles → Export (JSON/XML)
2. Import → validate → apply to new profiles

Example general template:

{
  "name": "General",
  "fingerprint": {
    "screen": { "width": 1920, "height": 1080 },
    "language": "en-US",
    "timezone": "America/New_York"
  },
  "proxy": null,
  "performance": { "maxBrowsers": 5, "maxTabs": 20 }
}

Best practices

1. Keep fingerprint + proxy + locale consistent per profile
2. Test with BrowserLeaks and FingerprintJS
3. Use quality proxies and monitor health
4. Balance concurrency with hardware limits

Troubleshooting config

Issue	Actions
Fingerprint flagged	Align UA/Canvas/WebGL; reduce noise; refresh UA
Proxy fails	Test auth, type, firewall; try another node
Slow / high RAM	Fewer concurrent profiles; tighten cache limits

External check tools

• BrowserLeaks
• FingerprintJS
• AmIUnique

Configuration is iterative—re-test after platform or anti-bot changes.