Web-Check

Web-Check is an open source OSINT tool designed to analyze any website and reveal its underlying architecture, security posture, and technology footprint. It aggregates data such as IP information, SSL chain details, DNS records, cookies, response headers, domain information, crawl rules, site map, server location, redirects, open ports, traceroute results, DNSSEC status, site performance, trackers, related hostnames, and even carbon footprint metrics.

Key Features

• IP info and network layout
• SSL chain and certificate details
• DNS records and domain information
• Cookies and response headers analysis
• Crawl rules and site map visibility
• Server location and redirects ledger
• Open ports and traceroute data
• DNSSEC presence and related security data
• Site performance metrics and trackers
• Related hostnames and asset discovery
• Carbon footprint estimation

Use Cases

• OSINT reconnaissance for security teams and threat intel
• Web security assessments and architecture discovery for devops and security engineers
• Performance and infrastructure analysis to optimize websites

Limitations and Considerations

• There is a known security advisory affecting the project’s screenshot API (command injection via unvalidated URL). Users should ensure they are on a patched release and follow secure deployment practices.

Conclusion

• Web-Check is an open source, self-hostable OSINT solution that helps you understand a website’s internals and security posture. It supports multiple deployment options (Docker, Netlify, Vercel) and offers a hosted live demo for quick evaluation.