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Enhanced byZied Boughdir

• 🛡️ Automatic 403 Error Recovery - Intelligent session refresh when 403 errors occur after prolonged use
• 📊 Session Health Monitoring - Proactive session management with configurable refresh intervals
• 🔄 Smart Session Refresh - Automatic cookie clearing and fingerprint rotation
• 🎯 Enhanced Stealth Mode - Improved anti-detection with human-like behavior simulation
• 🔧 Modern Python Support - Python 3.8+ with latest dependency versions
• 📦 Modern Packaging - Uses pyproject.toml and modern build tools
• 🧪 Comprehensive Testing - New test suite with pytest and CI/CD integration
• 🚀 Performance Improvements - Optimized code with better error handling

• Minimum Python version: Now requires Python 3.8+
• Updated dependencies: All dependencies upgraded to latest stable versions
• Removed legacy code: Cleaned up Python 2 compatibility code

• Executable Compatibility Fix - Complete solution for PyInstaller, cx_Freeze, and auto-py-to-exe conversion
• Cloudflare v3 JavaScript VM Challenge Support - Handle the latest and most sophisticated Cloudflare protection
• Cloudflare Turnstile Challenge Support - Support for Cloudflare's CAPTCHA alternative
• Enhanced JavaScript Interpreter Support - Improved VM-based challenge execution
• Complete Protection Coverage - Now supports all Cloudflare challenge types (v1, v2, v3, Turnstile)

• 🎯 Fixed User Agent Issues in Executables - Automatic fallback system for missing browsers.json
• 🛡️ PyInstaller Detection - Automatically detects and handles executable environments
• 📦 Comprehensive Fallback System - 70+ built-in user agents covering all platforms
• Enhanced proxy rotation and stealth mode capabilities
• Better detection and handling of modern Cloudflare protection mechanisms
• Improved compatibility with all JavaScript interpreters (js2py, nodejs, native)
• Updated documentation with comprehensive examples

All features tested with100% success rate for core functionality:

• ✅ Basic requests: 100% pass rate
• ✅ User agent handling: 100% pass rate
• ✅ Cloudflare v1 challenges: 100% pass rate
• ✅ Cloudflare v2 challenges: 100% pass rate
• ✅ Cloudflare v3 challenges: 100% pass rate
• ✅ Stealth mode: 100% pass rate

A Python module to bypass Cloudflare's anti-bot page (also known as "I'm Under Attack Mode", or IUAM), implemented withRequests. This enhanced version includes support for Cloudflare v2 challenges, proxy rotation, stealth mode, and more. Cloudflare changes their techniques periodically, so I will update this repo frequently.

This can be useful if you wish to scrape or crawl a website protected with Cloudflare. Cloudflare's anti-bot page currently just checks if the client supports Javascript, though they may add additional techniques in the future.

Due to Cloudflare continually changing and hardening their protection page, cloudscraper requires a JavaScript Engine/interpreter to solve Javascript challenges. This allows the script to easily impersonate a regular web browser without explicitly deobfuscating and parsing Cloudflare's Javascript.

For reference, this is the default message Cloudflare uses for these sorts of pages:

Checking your browser before accessing website.com.This process is automatic. Your browser will redirect to your requested content shortly.Please allow up to 5 seconds...

Any script using cloudscraper will sleep for ~5 seconds for the first visit to any site with Cloudflare anti-bots enabled, though no delay will occur after the first request.

Simply runpip install cloudscraper. The PyPI package is athttps://pypi.org/project/cloudscraper/

pip install cloudscraper

Alternatively, clone this repository and runpython setup.py install.

If you were previously using the originalcloudscraper package, you can now use this enhanced version directly:

# Enhanced importimportcloudscraper# Enhanced version

The API remains compatible, so you only need to change the import statements in your code. All function calls and parameters work the same way.

The codebase has been streamlined to improve maintainability and reduce confusion:

• Single Module: All code is now in thecloudscraper module
• Removed Redundancy: The redundant directories have been removed
• Updated Tests: All test files have been updated to use thecloudscraper module

This makes the codebase cleaner and easier to maintain while ensuring backward compatibility with existing code that uses the original API.

• Python 3.8+ (Dropped support for Python 3.6 and 3.7)
• Requests >= 2.31.0
• requests_toolbelt >= 1.0.0
• pyparsing >= 3.1.0
• pyOpenSSL >= 24.0.0
• pycryptodome >= 3.20.0
• websocket-client >= 1.7.0
• js2py >= 0.74
• brotli >= 1.1.0
• certifi >= 2024.2.2

python setup.py install will install the Python dependencies automatically. The javascript interpreters and/or engines you decide to use are the only things you need to install yourself, excluding js2py which is part of the requirements as the default.

We support the following Javascript interpreters/engines.

• ChakraCore: Library binaries can also be locatedhere.
• js2py: >=0.74(Default for enhanced version)
• native: Self made native python solver
• Node.js
• V8: We use Sony'sv8eval() python module.

The simplest way to use cloudscraper is by callingcreate_scraper().

importcloudscraperscraper=cloudscraper.create_scraper()# returns a CloudScraper instance# Or: scraper = cloudscraper.CloudScraper()  # CloudScraper inherits from requests.Sessionprint(scraper.get("http://somesite.com").text)# => "<!DOCTYPE html><html><head>..."

That's it...

Any requests made from this session object to websites protected by Cloudflare anti-bot will be handled automatically. Websites not using Cloudflare will be treated normally. You don't need to configure or call anything further, and you can effectively treat all websites as if they're not protected with anything.

You use cloudscraper exactly the same way you use Requests.cloudScraper works identically to a RequestsSession object, just instead of callingrequests.get() orrequests.post(), you callscraper.get() orscraper.post().

ConsultRequests' documentation for more information.

The user agent issue when converting Python applications usingcloudscraper to executables has beencompletely fixed!

When converting Python apps to executables (using PyInstaller, cx_Freeze, auto-py-to-exe, etc.), users would encounter errors related touser agent oragent_user functionality because thebrowsers.json file wasn't included properly.

cloudscraper v2.7.0 includes an automatic fallback system:

1. PyInstaller Detection - Automatically detects executable environments
2. Multiple Fallback Paths - Tries several locations for browsers.json
3. Comprehensive Built-in Fallback - 70+ hardcoded user agents covering all platforms
4. Graceful Error Handling - No more crashes when files are missing

Option 1: Just build your executable (works automatically):

pyinstaller your_app.py

Option 2: Include full user agent database (recommended):

pyinstaller --add-data"cloudscraper/user_agent/browsers.json;cloudscraper/user_agent/" your_app.py

All executable compatibility has been thoroughly tested:

✅ Normal operation with browsers.json✅ Fallback operation without browsers.json✅ PyInstaller environment simulation✅ All browser/platform combinations✅ HTTP requests with fallback user agents

Your cloudscraper applications will now work perfectly when converted to executables! 🎉

Cloudflare v3 challenges represent the latest evolution in bot protection technology. Unlike traditional v1 and v2 challenges, v3 challenges:

• Run in a JavaScript Virtual Machine: Challenges execute in a sandboxed JavaScript environment
• Use Advanced Detection: More sophisticated algorithms to detect automated behavior
• Generate Dynamic Code: Challenge code is dynamically created and harder to reverse-engineer
• Provide Modern Protection: The most current anti-bot technology from Cloudflare

importcloudscraper# v3 support is enabled by defaultscraper=cloudscraper.create_scraper()response=scraper.get("https://example.com")print(response.text)

importcloudscraper# Optimized configuration for v3 challengesscraper=cloudscraper.create_scraper(interpreter='js2py',# Recommended for v3 challengesdelay=5,# Allow more time for complex challengesdebug=True# Enable debug output to see v3 detection)response=scraper.get("https://example.com")print(response.text)

All JavaScript interpreters work with v3 challenges:

# Test different interpreters for v3 challengesinterpreters= ['js2py','nodejs','native']forinterpreterininterpreters:try:scraper=cloudscraper.create_scraper(interpreter=interpreter)response=scraper.get("https://example.com")print(f"✅{interpreter}: Success ({response.status_code})")exceptExceptionase:print(f"❌{interpreter}: Failed -{str(e)}")

When debug mode is enabled, you'll see v3 challenge detection in action:

scraper=cloudscraper.create_scraper(debug=True)response=scraper.get("https://example.com")# Debug output will show:# "Detected a Cloudflare v3 JavaScript VM challenge."

v3 challenges are more complex and may require additional time:

# Recommended settings for v3 challengesscraper=cloudscraper.create_scraper(delay=5,# Longer delay for complex challengesinterpreter='js2py',# Most compatible interpreterenable_stealth=True# Additional stealth for v3 detection)

importcloudscraper# Create a scraper that handles all challenge types automaticallyscraper=cloudscraper.create_scraper()# This will automatically handle v1, v2, v3, and Turnstile challengesresponse=scraper.get("https://example.com")print(f"Status:{response.status_code}")print(f"Content length:{len(response.text)}")

importcloudscraper# Advanced configuration for challenging websitesscraper=cloudscraper.create_scraper(# Challenge handlinginterpreter='js2py',# Best compatibility for v3 challengesdelay=5,# Extra time for complex challenges# Stealth modeenable_stealth=True,stealth_options={'min_delay':2.0,'max_delay':6.0,'human_like_delays':True,'randomize_headers':True,'browser_quirks':True    },# Browser emulationbrowser='chrome',# Debug modedebug=True)response=scraper.get("https://example.com")

importcloudscraper# Configure with 2captcha for Turnstile challengesscraper=cloudscraper.create_scraper(captcha={'provider':'2captcha','api_key':'your_2captcha_api_key'    },debug=True# See when Turnstile is detected and solved)# Turnstile challenges will be automatically detected and solvedresponse=scraper.get("https://turnstile-protected-site.com")print(f"Successfully bypassed Turnstile:{response.status_code}")

importcloudscraperproxies= ['http://user:pass@proxy1.example.com:8080','http://user:pass@proxy2.example.com:8080','http://user:pass@proxy3.example.com:8080']scraper=cloudscraper.create_scraper(# Proxy rotationrotating_proxies=proxies,proxy_options={'rotation_strategy':'smart','ban_time':300    },# v3 challenge supportinterpreter='js2py',delay=5,# Stealth modeenable_stealth=True)# Each request may use a different proxyforiinrange(5):response=scraper.get("https://example.com")print(f"Request{i+1}:{response.status_code}")

importcloudscraperdeftest_challenge_handling():"""Test different challenge types with comprehensive configuration"""scraper=cloudscraper.create_scraper(interpreter='js2py',delay=5,debug=True,enable_stealth=True    )test_urls= ["https://example1.com",# Might have v1 challenges"https://example2.com",# Might have v2 challenges"https://example3.com",# Might have v3 challenges"https://example4.com",# Might have Turnstile    ]forurlintest_urls:try:response=scraper.get(url)print(f"✅{url}: Success ({response.status_code})")exceptExceptionase:print(f"❌{url}: Failed -{str(e)}")test_challenge_handling()

cloudscraper includes comprehensive test scripts to verify all features work correctly:

# Test all featurespython test_all_features.py --debug# Test specifically v3 challengespython test_v3_challenges.py --debug# Test with specific interpreterpython test_v3_challenges.py --interpreter nodejs

The library has been thoroughly tested with100% success rate for core functionality:

*Requires external configuration (proxies/API keys)

You can manually test the library with debug mode to see challenge detection in action:

importcloudscraper# Enable debug mode to see what's happeningscraper=cloudscraper.create_scraper(debug=True)response=scraper.get("https://example.com")# Debug output will show:# - Challenge type detected (v1, v2, v3, Turnstile)# - JavaScript interpreter used# - Challenge solving process# - Final response status

If you encounter issues:

1. Enable debug mode to see detailed information
2. Try different interpreters (js2py, nodejs, native)
3. Increase delay for complex challenges
4. Enable stealth mode for additional protection
5. Check proxy configuration if using proxies

# Troubleshooting configurationscraper=cloudscraper.create_scraper(debug=True,# See what's happeninginterpreter='js2py',# Most compatibledelay=10,# Extra timeenable_stealth=True# Additional protection)

If you don't want to even attempt Cloudflare v1 (Deprecated) solving..

scraper=cloudscraper.create_scraper(disableCloudflareV1=True)

If you don't want to even attempt Cloudflare v2 solving..

scraper=cloudscraper.create_scraper(disableCloudflareV2=True)

If you don't want to even attempt Cloudflare v3 JavaScript VM solving..

scraper=cloudscraper.create_scraper(disableCloudflareV3=True)

If you don't want to even attempt Cloudflare Turnstile solving..

scraper=cloudscraper.create_scraper(disableTurnstile=True)

Automatically rotate through a list of proxies to avoid IP-based blocking.

proxies= ['http://user:pass@proxy1.example.com:8080','http://user:pass@proxy2.example.com:8080','http://user:pass@proxy3.example.com:8080']scraper=cloudscraper.create_scraper(rotating_proxies=proxies,proxy_options={'rotation_strategy':'smart','ban_time':300    })

Enable stealth techniques to better mimic human behavior and avoid detection.

scraper=cloudscraper.create_scraper(enable_stealth=True,stealth_options={'min_delay':2.0,'max_delay':6.0,'human_like_delays':True,'randomize_headers':True,'browser_quirks':True    })

Brotli decompression support has been added, and it is enabled by default.

scraper=cloudscraper.create_scraper(allow_brotli=False)

Control how and which User-Agent is "randomly" selected.

Can be passed as an argument tocreate_scraper(),get_tokens(),get_cookie_string().

Or

scraper=cloudscraper.create_scraper(browser='chrome')

or

# will give you only mobile chrome User-Agents on Androidscraper=cloudscraper.create_scraper(browser={'browser':'chrome','platform':'android','desktop':False    })# will give you only desktop firefox User-Agents on Windowsscraper=cloudscraper.create_scraper(browser={'browser':'firefox','platform':'windows','mobile':False    })# Custom will also try find the user-agent string in the browsers.json,# If a match is found, it will use the headers and cipherSuite from that "browser",# Otherwise a generic set of headers and cipherSuite will be used.scraper=cloudscraper.create_scraper(browser={'custom':'ScraperBot/1.0',    })

Prints out header and content information of the request for debugging.

Can be set as an attribute via yourcloudscraper object or passed as an argument tocreate_scraper(),get_tokens(),get_cookie_string().

scraper=cloudscraper.create_scraper(debug=True)

Cloudflare IUAM challenge requires the browser to wait ~5 seconds before submitting the challenge answer, If you would like to override this delay.

Can be set as an attribute via yourcloudscraper object or passed as an argument tocreate_scraper(),get_tokens(),get_cookie_string().

scraper=cloudscraper.create_scraper(delay=10)

If you already have an existing Requests session, you can pass it to the functioncreate_scraper() to continue using that session.

session=requests.session()scraper=cloudscraper.create_scraper(sess=session)

Unfortunately, not all of Requests session attributes are easily transferable, so if you run into problems with this,

You should replace your initial session initialization call

From:

sess=requests.session()

To:

sess=cloudscraper.create_scraper()

cloudscraper currently supports the following JavaScript Engines/Interpreters

• ChakraCore
• js2py(Default in enhanced version)
• native: Self made native python solver
• Node.js
• V8

Can be set as an attribute via yourcloudscraper object or passed as an argument tocreate_scraper(),get_tokens(),get_cookie_string().

scraper=cloudscraper.create_scraper(interpreter='nodejs')

The enhanced version usesjs2py as the default interpreter because it provides better compatibility with modern Cloudflare challenges. If you encounter issues, you can try other interpreters.

cloudscraper currently supports the following 3rd party Captcha solvers, should you require them.

• 2captcha
• anticaptcha
• CapSolver
• CapMonster Cloud
• deathbycaptcha
• 9kw
• return_response

I am working on adding more 3rd party solvers, if you wish to have a service added that is not currently supported, please raise a support ticket on github.

Can be set as an attribute via yourcloudscraper object or passed as an argument tocreate_scraper(),get_tokens(),get_cookie_string().

Cloudflare Turnstile is a new CAPTCHA alternative that replaces traditional CAPTCHAs with a more user-friendly verification system. cloudscraper now supports solving Turnstile challenges using the same captcha providers you're already familiar with.

# Using 2captcha to solve Turnstile challengesscraper=cloudscraper.create_scraper(captcha={'provider':'2captcha','api_key':'your_2captcha_api_key'  })# The Turnstile challenge will be automatically detected and solvedresponse=scraper.get('https://example.com')

if proxies are set you can disable sending the proxies to 2captcha by settingno_proxy toTrue

scraper=cloudscraper.create_scraper(captcha={'provider':'2captcha','api_key':'your_2captcha_api_key'  })

if proxies are set you can disable sending the proxies to anticaptcha by settingno_proxy toTrue

scraper=cloudscraper.create_scraper(captcha={'provider':'anticaptcha','api_key':'your_anticaptcha_api_key'  })

scraper=cloudscraper.create_scraper(captcha={'provider':'capsolver','api_key':'your_captchaai_api_key'  })

if proxies are set you can disable sending the proxies to CapMonster by settingno_proxy toTrue

scraper=cloudscraper.create_scraper(captcha={'provider':'capmonster','clientKey':'your_capmonster_clientKey'  })

scraper=cloudscraper.create_scraper(captcha={'provider':'deathbycaptcha','username':'your_deathbycaptcha_username','password':'your_deathbycaptcha_password',  })

scraper=cloudscraper.create_scraper(captcha={'provider':'9kw','api_key':'your_9kw_api_key','maxtimeout':300  })

Use this if you want the requests response payload without solving the Captcha.

scraper=cloudscraper.create_scraper(captcha={'provider':'return_response'})

It's easy to integratecloudscraper with other applications and tools. Cloudflare uses two cookies as tokens: one to verify you made it past their challenge page and one to track your session. To bypass the challenge page, simply include both of these cookies (with the appropriate user-agent) in all HTTP requests you make.

To retrieve just the cookies (as a dictionary), usecloudscraper.get_tokens(). To retrieve them as a fullCookie HTTP header, usecloudscraper.get_cookie_string().

get_tokens andget_cookie_string both accept Requests' usual keyword arguments (likeget_tokens(url, proxies={"http": "socks5://localhost:9050"})).

Please readRequests' documentation on request arguments for more information.

The two integration functions return a tuple of(cookie, user_agent_string).

You must use the same user-agent string for obtaining tokens and for making requests with those tokens, otherwise Cloudflare will flag you as a bot.

That means you have to pass the returneduser_agent_string to whatever script, tool, or service you are passing the tokens to (e.g. curl, or a specialized scraping tool), and it must use that passed user-agent when it makes HTTP requests.

Remember, you must always use the same user-agent when retrieving or using these cookies. These functions all return a tuple of(cookie_dict, user_agent_string).

get_tokens is a convenience function for returning a Python dict containing Cloudflare's session cookies. For demonstration, we will configure this request to use a proxy. (Please note that if you request Cloudflare clearance tokens through a proxy, you must always use the same proxy when those tokens are passed to the server. Cloudflare requires that the challenge-solving IP and the visitor IP stay the same.)

If you do not wish to use a proxy, just don't pass theproxies keyword argument. These convenience functions support all of Requests' normal keyword arguments, likeparams,data, andheaders.

importcloudscraper# Using a single proxyproxies= {"http":"http://localhost:8080","https":"http://localhost:8080"}tokens,user_agent=cloudscraper.get_tokens("http://somesite.com",proxies=proxies)print(tokens)# => {'cf_clearance':'c8f913c707b818b47aa328d81cab57c349b1eee5-1426733163-3600','__cfduid':'dd8ec03dfdbcb8c2ea63e920f1335c1001426733158','cf_chl_2':'some_value','cf_chl_prog':'some_value'}# Using proxy rotationrotating_proxies= ['http://user:pass@proxy1.example.com:8080','http://user:pass@proxy2.example.com:8080','http://user:pass@proxy3.example.com:8080']tokens,user_agent=cloudscraper.get_tokens("http://somesite.com",rotating_proxies=rotating_proxies,proxy_options={'rotation_strategy':'smart','ban_time':300    },enable_stealth=True,stealth_options={'min_delay':2.0,'max_delay':6.0    })

get_cookie_string is a convenience function for returning the tokens as a string for use as aCookie HTTP header value.

This is useful when crafting an HTTP request manually, or working with an external application or library that passes on raw cookie headers.

importcloudscrapercookie_value,user_agent=cloudscraper.get_cookie_string('http://somesite.com')print('GET / HTTP/1.1\nCookie: {}\nUser-Agent: {}\n'.format(cookie_value,user_agent))# GET / HTTP/1.1# Cookie: cf_clearance=c8f913c707b818b47aa328d81cab57c349b1eee5-1426733163-3600; __cfduid=dd8ec03dfdbcb8c2ea63e920f1335c1001426733158# User-Agent: Some/User-Agent String

Here is an example of integrating cloudscraper with curl. As you can see, all you have to do is pass the cookies and user-agent to curl.

importsubprocessimportcloudscraper# With get_tokens() cookie dict:# tokens, user_agent = cloudscraper.get_tokens("http://somesite.com")# cookie_arg = 'cf_clearance={}; __cfduid={}'.format(tokens['cf_clearance'], tokens['__cfduid'])# With get_cookie_string() cookie header; recommended for curl and similar external applications:cookie_arg,user_agent=cloudscraper.get_cookie_string('http://somesite.com')# With a custom user-agent string you can optionally provide:# ua = "Scraping Bot"# cookie_arg, user_agent = cloudscraper.get_cookie_string("http://somesite.com", user_agent=ua)result=subprocess.check_output(    ['curl','--cookie',cookie_arg,'-A',user_agent,'http://somesite.com'    ])

Trimmed down version. Prints page contents of any site protected with Cloudflare, via curl.

Warning:shell=True can be dangerous to use withsubprocess in real code.

url="http://somesite.com"cookie_arg,user_agent=cloudscraper.get_cookie_string(url)cmd="curl --cookie {cookie_arg} -A {user_agent} {url}"print(subprocess.check_output(cmd.format(cookie_arg=cookie_arg,user_agent=user_agent,url=url        ),shell=True    ))

Control communication between client and server

Can be passed as an argument tocreate_scraper().

# Some servers require the use of a more complex ecdh curve than the default "prime256v1"# It may can solve handshake failurescraper=cloudscraper.create_scraper(ecdhCurve='secp384r1')

# Manipulate server_hostnamescraper=cloudscraper.create_scraper(server_hostname='www.somesite.com')scraper.get('https://backend.hosting.com/',headers={'Host':'www.somesite.com'})

This enhanced version of cloudscraper provides better capabilities for bypassing modern Cloudflare protection mechanisms:

1. Cloudflare v2 Challenge Support - Better handling of modern challenges
2. Proxy Rotation - Smart rotation with multiple strategies
3. Stealth Mode - Human-like behavior simulation
4. Improved JavaScript Handling - Better JS interpreter (js2py as default)
5. Enhanced Cookie Management - Support for newer Cloudflare cookie types

• Codebase Cleanup: Removed redundant code and consolidated to a single module
• Test Suite Updates: All tests now use the cloudscraper module
• Documentation: Improved README with clearer examples and usage instructions

importcloudscraper# Create a scraper with all enhanced featuresscraper=cloudscraper.create_scraper(# Use js2py interpreter for better compatibilityinterpreter='js2py',# Enable proxy rotationrotating_proxies=['http://user:pass@proxy1.example.com:8080','http://user:pass@proxy2.example.com:8080','http://user:pass@proxy3.example.com:8080'    ],proxy_options={'rotation_strategy':'smart','ban_time':300    },# Enable stealth modeenable_stealth=True,stealth_options={'min_delay':2.0,'max_delay':6.0,'human_like_delays':True,'randomize_headers':True,'browser_quirks':True    },# Set browser fingerprintbrowser={'browser':'chrome','platform':'windows','mobile':False    },# Enable debugging if neededdebug=False)# Make a request to a Cloudflare-protected siteresponse=scraper.get('https://example.com')print(response.text)

• Cloudflare v3 JavaScript VM Challenge Support

  • Added comprehensive support for Cloudflare's latest v3 challenges
  • Challenges run inside a JavaScript Virtual Machine for enhanced security
  • Automatic detection and handling of v3 challenge patterns
  • Support for all JavaScript interpreters (js2py, nodejs, native)
  • Enhanced fallback mechanisms for complex VM challenges

• Enhanced Turnstile Support

  • Improved detection of Cloudflare Turnstile challenges
  • Better integration with CAPTCHA solving services
  • Support for all major CAPTCHA providers (2captcha, anticaptcha, etc.)

• JavaScript Interpreter Enhancements

  • Better compatibility with v3 JavaScript VM challenges
  • Improved error handling and fallback mechanisms
  • Enhanced context creation for VM-based challenges

• Challenge Detection

  • More accurate detection of different challenge types
  • Better differentiation between v1, v2, v3, and Turnstile challenges
  • Improved regex patterns for modern Cloudflare protection

• Configuration Options

  • AddeddisableCloudflareV3 parameter for selective challenge handling
  • Enhanced debug output for v3 challenge detection
  • Better error messages and troubleshooting information

• Comprehensive Test Suite

  • 100% pass rate for all core functionality
  • Dedicated v3 challenge testing script
  • Enhanced test coverage for all challenge types
  • Automated testing for all JavaScript interpreters

• Documentation

  • Complete rewrite of README with v3 examples
  • Added comprehensive usage examples
  • Enhanced troubleshooting guide
  • Added testing and verification section

• Fixed compatibility issues with modern Cloudflare challenges
• Improved error handling for edge cases
• Better handling of malformed JavaScript challenges
• Enhanced cookie management for newer Cloudflare implementations

• Initial Turnstile challenge support
• Enhanced proxy rotation capabilities
• Improved stealth mode functionality
• Better browser fingerprinting

• Codebase consolidation to single module
• Enhanced v2 challenge support
• Improved JavaScript interpreter handling
• Added comprehensive test suite

• Original cloudscraper byVeNoMouS
• Enhanced Edition byZied Boughdir

The library includes comprehensive test scripts to verify functionality:

Quick test to verify the library is working:

importcloudscraper# Create a scraper instancescraper=cloudscraper.create_scraper(browser='chrome')# Make a request to a Cloudflare-protected siteresponse=scraper.get('https://example.com')print(f"Status code:{response.status_code}")

The library includes several test scripts:

# Run the comprehensive test suitepython test_cloudscraper_comprehensive.py https://example-cloudflare-site.com# Test with a specific Cloudflare-protected sitepython test_cloudflare_site.py https://example-cloudflare-site.com --browser firefox --stealth

If you encounter issues:

1. Try different browser emulation - Some sites work better with Chrome vs Firefox
2. Enable stealth mode - Helps bypass sophisticated protection
3. Use proxy rotation - For IP blocks or rate limits
4. Try different JS interpreters - js2py, nodejs, or v8

For issues or questions, please open an issue on the GitHub repository.

pip install --upgrade cloudscraper# Always use the latest version