🌐 URL Security Checker

📋 Service Description

This service allows you to check the availability and content of external URLs.

Our system will fetch the URL and display its content for security analysis.

🛡️ Security Features

Blocked access to localhost and internal IPs
Only HTTP/HTTPS protocols allowed
Request timeout: 5 seconds
Content size limit: 10KB

🔍 Check URL

💡 Hints

The system has internal services running on the private network
Internal API endpoint: http://internal-api:5000
URL encoding and alternative IP representations might bypass filters...
Try: decimal IP, hex IP, or URL shorteners

🎯 Your Mission

There's a secret internal API that contains sensitive information.

Find a way to access: http://internal-api:5000/admin/flag