Anti-DetectionStealth5 credits

stealth_mode

Bypass bot detection systems with advanced anti-detection techniques including fingerprint randomization, human behavior simulation, and stealth browser configurations.

Use Cases

Protected E-commerce Sites

Scrape product data from sites with Cloudflare, DataDome, or PerimeterX protection

Social Media Platforms

Extract public data from platforms with sophisticated bot detection

Financial Data Sites

Access market data, stock prices, and financial information from protected sources

Rate-Limited APIs

Bypass aggressive rate limiting with fingerprint rotation

Geo-Blocked Content

Access region-restricted content with residential proxy support

High-Security Testing

Test your own anti-bot systems with advanced evasion techniques

Endpoint

POST/api/v1/tools/stealth_mode

Auth Required

2 req/s on Free plan

5 credits

Parameters

Name	Type	Required	Default	Description
operation	string	Required	-	The scraping operation to perform: fetch, scrape, or screenshot Example: scrape
url	string	Required	-	Target URL to scrape with stealth mode Example: https://protected-site.com
level	string	Optional	medium	Stealth level: basic, medium, or advanced Example: advanced
engine	string	Optional	playwright	Browser engine to use: "playwright" \| "camoufox" Example: camoufox
stealthConfig	object	Optional	-	Custom stealth configuration options Example: {"randomizeFingerprint": true, "simulateHumanBehavior": true}
randomizeFingerprint	boolean	Optional	true	Randomize browser fingerprint on each request Example: true
simulateHumanBehavior	boolean	Optional	true	Add random delays and mouse movements Example: true
rotateProxy	boolean	Optional	false	Use residential proxy rotation (additional cost) Example: false

Engine selection

stealth_mode supports two underlying browser engines. Choose based on your target site's detection difficulty.

Playwright (default)

Battle-tested Chromium automation with stealth plugins. Best for: most sites, fast execution, broad debugging tooling. Lighter resource footprint.

Camoufox

Firefox-based fork hardened for anti-bot evasion. Best for: aggressive bot detection (Cloudflare Turnstile, DataDome, PerimeterX hard mode). Higher memory usage; slightly slower startup.

Engine example

terminalBash

curl -X POST https://crawlforge.dev/api/v1/tools/stealth_mode \
  -H "X-API-Key: cf_test_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "operation": "scrape",
    "url": "https://protected-site.com",
    "level": "advanced",
    "engine": "camoufox"
  }'

Stealth Levels

Basic (Fastest)

Best for sites with minimal bot detection. User-Agent randomization, basic header manipulation, cookie handling, ~1-2 second delay.

Medium (Recommended)

Balanced stealth and performance. Full fingerprint randomization, Canvas/WebGL fingerprint masking, timezone and language spoofing, human-like scrolling and movements, ~3-5 second delay.

Advanced (Slowest)

Maximum stealth for heavily protected sites. All medium features plus: WebDriver detection evasion, bot-specific JavaScript challenge bypass, advanced TLS fingerprinting, mouse movement simulation, random click patterns, ~8-12 second delay.

Request Examples

terminalBash

curl -X POST https://crawlforge.dev/api/v1/tools/stealth_mode \
  -H "X-API-Key: cf_test_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "operation": "scrape",
    "url": "https://protected-site.com",
    "level": "advanced",
    "stealthConfig": {
      "randomizeFingerprint": true,
      "simulateHumanBehavior": true,
      "rotateProxy": false
    }
  }'

Response Example

200 OK8,750ms

{
  "success": true,
  "data": {
    "url": "https://protected-site.com",
    "operation": "scrape",
    "level": "advanced",
    "content": "...",
    "contentLength": 45678,
    "detectionBypassed": true,
    "fingerprint": {
      "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)...",
      "viewport": {
        "width": 1920,
        "height": 1080
      },
      "timezone": "America/New_York",
      "language": "en-US"
    },
    "stealthMetrics": {
      "fingerprintChanges": 12,
      "humanActionsSimulated": 8,
      "delaysApplied": 6,
      "totalStealthTime": 8200
    }
  },
  "credits_used": 5,
  "credits_remaining": 995,
  "processing_time": 8750
}

Field Descriptions

data.detectionBypassedWhether bot detection was successfully evaded

data.fingerprintBrowser fingerprint used for this request

data.stealthMetricsDetails about stealth techniques applied

data.stealthMetrics.totalStealthTimeTime spent on stealth measures (ms)

credits_usedFixed 5 credits per stealth mode request

processing_timeTotal time including stealth delays (8-15 seconds typical)

Error Handling

Detection Failed (403 Forbidden)

Bot detection couldn't be bypassed. Try increasing stealth level or enable proxy rotation.

CAPTCHA Required (429 Too Many Requests)

Site presented a CAPTCHA challenge. Contact support for CAPTCHA solving integration.

Invalid Operation (400 Bad Request)

Operation must be one of: fetch, scrape, or screenshot.

Timeout Error (500 Internal Server Error)

Stealth mode timed out. Site may be too slow or heavily protected.

Pro Tip: Start with "medium" stealth level. Only use "advanced" for sites that block medium level. Stealth mode adds 8-15 seconds of processing time—plan accordingly for batch operations.

Credit Cost

5 credits

5 credits per request

Fixed cost regardless of stealth level. Credits charged only on successful bypass.

What's Included:

Fingerprint randomization (all levels)

Human behavior simulation

Anti-detection techniques

WebDriver detection evasion (medium+)

Canvas/WebGL masking (medium+)

Advanced TLS fingerprinting (advanced)

Plan Recommendations:

Free Plan: 1,000 one-time trial credits = 200 stealth requests

Hobby Plan: 5,000 credits = 1,000 stealth requests ($19/mo)

Professional Plan: 50,000 credits = 10,000 stealth requests ($99/mo)

Related Tools

batch_scrape

Scrape multiple URLs in parallel (5 credits)

localization

Access geo-restricted content with location spoofing (2 credits)

scrape_with_actions

Perform complex interactions with stealth (5 credits)

deep_research

AI-powered research across multiple sources (10 credits)

Ready to try stealth_mode? Sign up for free and get 1,000 credits to start building.

Anti-DetectionStealth5 credits

stealth_mode

Bypass bot detection systems with advanced anti-detection techniques including fingerprint randomization, human behavior simulation, and stealth browser configurations.

Use Cases

Protected E-commerce Sites

Scrape product data from sites with Cloudflare, DataDome, or PerimeterX protection

Social Media Platforms

Extract public data from platforms with sophisticated bot detection

Financial Data Sites

Access market data, stock prices, and financial information from protected sources

Rate-Limited APIs

Bypass aggressive rate limiting with fingerprint rotation

Geo-Blocked Content

Access region-restricted content with residential proxy support

High-Security Testing

Test your own anti-bot systems with advanced evasion techniques

Endpoint

POST/api/v1/tools/stealth_mode

Auth Required

2 req/s on Free plan

5 credits

Parameters

Name	Type	Required	Default	Description
operation	string	Required	-	The scraping operation to perform: fetch, scrape, or screenshot Example: scrape
url	string	Required	-	Target URL to scrape with stealth mode Example: https://protected-site.com
level	string	Optional	medium	Stealth level: basic, medium, or advanced Example: advanced
engine	string	Optional	playwright	Browser engine to use: "playwright" \| "camoufox" Example: camoufox
stealthConfig	object	Optional	-	Custom stealth configuration options Example: {"randomizeFingerprint": true, "simulateHumanBehavior": true}
randomizeFingerprint	boolean	Optional	true	Randomize browser fingerprint on each request Example: true
simulateHumanBehavior	boolean	Optional	true	Add random delays and mouse movements Example: true
rotateProxy	boolean	Optional	false	Use residential proxy rotation (additional cost) Example: false

Engine selection

stealth_mode supports two underlying browser engines. Choose based on your target site's detection difficulty.

Playwright (default)

Battle-tested Chromium automation with stealth plugins. Best for: most sites, fast execution, broad debugging tooling. Lighter resource footprint.

Camoufox

Firefox-based fork hardened for anti-bot evasion. Best for: aggressive bot detection (Cloudflare Turnstile, DataDome, PerimeterX hard mode). Higher memory usage; slightly slower startup.

Engine example

terminalBash

curl -X POST https://crawlforge.dev/api/v1/tools/stealth_mode \
  -H "X-API-Key: cf_test_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "operation": "scrape",
    "url": "https://protected-site.com",
    "level": "advanced",
    "engine": "camoufox"
  }'

Stealth Levels

Basic (Fastest)

Best for sites with minimal bot detection. User-Agent randomization, basic header manipulation, cookie handling, ~1-2 second delay.

Medium (Recommended)

Balanced stealth and performance. Full fingerprint randomization, Canvas/WebGL fingerprint masking, timezone and language spoofing, human-like scrolling and movements, ~3-5 second delay.

Advanced (Slowest)

Request Examples

terminalBash

curl -X POST https://crawlforge.dev/api/v1/tools/stealth_mode \
  -H "X-API-Key: cf_test_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "operation": "scrape",
    "url": "https://protected-site.com",
    "level": "advanced",
    "stealthConfig": {
      "randomizeFingerprint": true,
      "simulateHumanBehavior": true,
      "rotateProxy": false
    }
  }'

Response Example

200 OK8,750ms

{
  "success": true,
  "data": {
    "url": "https://protected-site.com",
    "operation": "scrape",
    "level": "advanced",
    "content": "...",
    "contentLength": 45678,
    "detectionBypassed": true,
    "fingerprint": {
      "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)...",
      "viewport": {
        "width": 1920,
        "height": 1080
      },
      "timezone": "America/New_York",
      "language": "en-US"
    },
    "stealthMetrics": {
      "fingerprintChanges": 12,
      "humanActionsSimulated": 8,
      "delaysApplied": 6,
      "totalStealthTime": 8200
    }
  },
  "credits_used": 5,
  "credits_remaining": 995,
  "processing_time": 8750
}

Field Descriptions

data.detectionBypassedWhether bot detection was successfully evaded

data.fingerprintBrowser fingerprint used for this request

data.stealthMetricsDetails about stealth techniques applied

data.stealthMetrics.totalStealthTimeTime spent on stealth measures (ms)

credits_usedFixed 5 credits per stealth mode request

processing_timeTotal time including stealth delays (8-15 seconds typical)

Error Handling

Detection Failed (403 Forbidden)

Bot detection couldn't be bypassed. Try increasing stealth level or enable proxy rotation.

CAPTCHA Required (429 Too Many Requests)

Site presented a CAPTCHA challenge. Contact support for CAPTCHA solving integration.

Invalid Operation (400 Bad Request)

Operation must be one of: fetch, scrape, or screenshot.

Timeout Error (500 Internal Server Error)

Stealth mode timed out. Site may be too slow or heavily protected.

Pro Tip: Start with "medium" stealth level. Only use "advanced" for sites that block medium level. Stealth mode adds 8-15 seconds of processing time—plan accordingly for batch operations.