# venomous/cloudscraper

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6,603 stars · 633 forks · Python · MIT

## Links

- GitHub: https://github.com/VeNoMouS/cloudscraper
- awesome-repositories: https://awesome-repositories.com/repository/venomous-cloudscraper.md

## Topics

`anti-bot-page` `cloudflare` `cloudflare-bypass` `cloudflare-scrape` `sneakerbot`

## Description

cloudscraper is a Python library designed to bypass Cloudflare anti-bot protections by resolving JavaScript challenges and mimicking browser fingerprints. It functions as a specialized tool for accessing websites that employ automated security systems to block scripts and headless browsers.

The project differentiates itself through the use of interchangeable JavaScript runtimes, such as Node.js or V8, to execute challenge code and obtain security clearance tokens. It employs a fingerprint rotation engine and HTTP request emulation to rotate browser headers and device identifiers, mimicking human browsing behavior to avoid detection.

The library covers broader capabilities including proxy rotation management to prevent IP blacklisting and integration with external services for solving CAPTCHA challenges. It also provides utilities for session cookie extraction and session health management to maintain connectivity during prolonged data extraction.

## Tags

### Security & Cryptography

- [Anti-Bot Evasion](https://awesome-repositories.com/f/security-cryptography/bot-detection/anti-bot-evasion.md) — Implements techniques for mimicking browser fingerprints and headers to evade automated bot detection services. ([source](https://cdn.jsdelivr.net/gh/venomous/cloudscraper@master/README.md))
- [TLS Fingerprint Emulators](https://awesome-repositories.com/f/security-cryptography/device-fingerprinting/fingerprint-configuration/tls-fingerprinting/tls-fingerprint-emulators.md) — Emulates browser network fingerprints and headers to evade automated security detection.
- [JavaScript Challenge Solvers](https://awesome-repositories.com/f/security-cryptography/javascript-challenge-solvers.md) — Executes anti-bot JavaScript using Node.js or V8 to obtain necessary security clearance tokens.
- [Cloudflare Challenge Solvers](https://awesome-repositories.com/f/security-cryptography/traffic-protection/protection-bypassers/cloudflare-challenge-solvers.md) — Specifically designed to bypass Cloudflare anti-bot pages by solving JavaScript challenges and mimicking browsers.
- [Automated Captcha Solvers](https://awesome-repositories.com/f/security-cryptography/captcha-services/automated-captcha-solvers.md) — Integrates with external third-party services to programmatically resolve CAPTCHA challenges during automated web sessions. ([source](https://cdn.jsdelivr.net/gh/venomous/cloudscraper@master/README.md))

### Networking & Communication

- [Anti-Detection Emulators](https://awesome-repositories.com/f/networking-communication/browser-device-emulation/anti-detection-emulators.md) — Provides an anti-detection emulator that rotates browser headers and fingerprints to avoid identification by security systems. ([source](https://cdn.jsdelivr.net/gh/venomous/cloudscraper@master/README.md))
- [Proxy and Fingerprint Rotation](https://awesome-repositories.com/f/networking-communication/proxy-rotation-services/proxy-and-fingerprint-rotation.md) — Features an engine that automatically rotates both proxies and browser fingerprints to avoid detection.
- [Proxy Rotation Services](https://awesome-repositories.com/f/networking-communication/proxy-rotation-services.md) — Distributes outgoing network traffic across multiple proxy servers to prevent IP address blacklisting.

### Programming Languages & Runtimes

- [Interchangeable Engine Wrappers](https://awesome-repositories.com/f/programming-languages-runtimes/runtime-execution-environments/javascript-runtimes/interchangeable-engine-wrappers.md) — Allows routing challenge scripts to different available engines like Node.js or V8 interchangeably.
- [Anti-Bot Challenge Runtimes](https://awesome-repositories.com/f/programming-languages-runtimes/runtime-execution-environments/javascript-runtimes/sandboxed-javascript-execution/anti-bot-challenge-runtimes.md) — Executes JavaScript challenge code using interchangeable engines like Node.js and V8 to obtain security tokens. ([source](https://cdn.jsdelivr.net/gh/venomous/cloudscraper@master/README.md))

### Data & Databases

- [Automated Web Scraping](https://awesome-repositories.com/f/data-databases/automated-web-scraping.md) — Enables data extraction from websites that employ advanced security measures to block automated scripts.

### Web Development

- [Scraping Infrastructure Management](https://awesome-repositories.com/f/web-development/web-automation-scraping/web-scraping-automation/scraping-infrastructure-management.md) — Manages the operational infrastructure for scrapers, including proxy cycling and session health.