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crawler is a collection of web scraping and JavaScript reverse engineering examples designed for learning how modern websites protect their data and how those protections can be analyzed. It contains many case studies that demonstrate how to analyze and replicate request parameters, cookies, and encryption logic used by real websites. Each directory in the project focuses on a specific target service or scenario, showing how browser network requests and JavaScript code can be studied to reproduce API calls programmatically. Many examples illustrate techniques such as debugging scripts, intercepting requests, analyzing encrypted parameters, and understanding authentication flows. crawler also explores common anti-scraping defenses and demonstrates how developers can examine them through debugging tools and reverse engineering techniques.
Features
- Collection of real-world web scraping and JavaScript reverse engineering cases
- Examples analyzing encrypted parameters such as AES, RSA, and other algorithms
- Demonstrations of login request reconstruction and authentication analysis
- Practical examples of debugging browser scripts and network requests
- Exercises involving JavaScript obfuscation and deobfuscation techniques
- Case studies covering multiple websites and anti-scraping mechanisms
