Finding JavaScript Files on Websites Using Automation

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Uncovering Hidden JavaScript Files for Security Research and Web Reconnaissance

JavaScript files (.js) often contain valuable information such as API endpoints, authentication mechanisms, and sensitive data leaks. Automated techniques help security researchers extract and analyze JavaScript files efficiently.

Discover API keys, tokens, and credentials.Find hidden endpoints and functions.Identify vulnerable third-party libraries.

a. Wayback Machine + Grep

Extract archived JavaScript files using Wayback Machine.

echo "example.com" | waybackurls | grep "\.js" | tee js_files.txt

b. Hakrawler

A powerful tool for automated web crawling.

echo "https://example.com" | hakrawler -depth 2 -subs | grep ".js"

c. GAU (Get All URLs)

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