A comprehensive RDAP (Registration Data Access Protocol) lookup tool and cybersecurity platform built with Next.js 16, React 19, and Tailwind CSS. This modern, open-source application provides domain intelligence, network analysis, and security research capabilities for cybersecurity professionals, IT administrators, and security researchers.

🌐 Live Demo: https://www.domainintel.in

RDAP is the modern, standardized replacement for the legacy WHOIS protocol, offering significant advantages:

• 🔧 Structured JSON Data: Machine-readable responses vs. unstructured text
• 🌍 Internationalization: Native support for IDNs and Unicode characters
• 🔒 Security First: HTTPS encryption and authentication support
• ⚡ RESTful API: Standard HTTP methods and status codes
• 🎯 Standardized: Consistent format across all registries and registrars

• 🛡️ Privacy Compliance: Built-in GDPR and privacy regulation support
• 📊 Structured Responses: Consistent JSON format eliminates parsing issues
• 🔍 Enhanced Search: Better support for IP ranges, ASNs, and entities
• ⚙️ Extensible: Designed for future enhancements and integrations

• Domain Lookup: Complete registration data, nameservers, contacts, and dates
• IP Address Lookup: Network allocation, organization details, and CIDR blocks
• ASN Lookup: Autonomous System information and routing data
• Entity Lookup: Registrar and contact information

• SSL/TLS Certificate Analysis: Certificate validation, chain verification, and security assessment
• Email Security: SPF, DMARC, and DKIM record validation and analysis
• DNSSEC Validation: Domain security extension verification
• Blacklist Checking: Multi-provider RBL/DNSBL verification
• Domain Intelligence: Age calculation, reputation scoring, and registration analysis
• Threat Detection: Typosquatting, homograph attacks, and malware C2 detection
• Certificate Transparency: CT log monitoring and anomaly detection
• Advanced Analysis: Domain parking, fast flux detection, and suspicious TLD flagging

• Clean, Minimalistic UI: Professional interface focused on usability
• Responsive Design: Works seamlessly on desktop, tablet, and mobile
• Real-time Results: Fast, comprehensive analysis with structured display
• Export Capabilities: Copy results as JSON for integration

• Rate Limiting: Configurable limits to prevent abuse
• Error Handling: User-friendly error messages and fallback mechanisms
• API Ready: Built for future API exposure and integrations
• Open Source: Fully transparent and community-driven development

• ⚡ Next.js 14: React framework with App Router for optimal performance
• ⚛️ React 18: Modern React with latest features and optimizations
• 🎨 Tailwind CSS: Utility-first CSS framework for rapid UI development
• 🔧 TypeScript Ready: Prepared for type-safe development
• ☁️ Vercel Deployment: Optimized for edge computing and global performance
• 🔒 Security Focused: Built-in security headers and best practices

• Node.js 18+ and npm/yarn
• Optional: hCaptcha account for bot protection

1. Clone the repository:

   git clone https://github.com/wbfoss/rdap-lookup.git
   cd rdap-lookup

2. Install dependencies:

   npm install
   # or
   yarn install

3. Environment setup (optional): Create .env.local for advanced features:

   # hCaptcha (optional - for bot protection)
   HCAPTCHA_SECRET_KEY=your_hcaptcha_secret_key
   NEXT_PUBLIC_HCAPTCHA_SITE_KEY=your_hcaptcha_site_key
   
   # Rate limiting (optional)
   RDAP_LOOKUP_MAX_QUERIES=100
   RDAP_LOOKUP_RATE_LIMIT_SECONDS=15

4. Run development server:

   npm run dev

   Open http://localhost:3000 in your browser.

5. Build for production:

   npm run build
   npm run start

1. Select Query Type: Choose from Domain, IP, ASN, or Entity
2. Enter Target: Input domain name (e.g., google.com), IP address (e.g., 8.8.8.8), or ASN (e.g., AS15169)
3. Optional Settings: For domains, specify DKIM selector if needed
4. Execute Lookup: Click "Lookup" to retrieve comprehensive RDAP data
5. Analyze Results: Review structured data in the Overview tab or raw JSON in the Raw tab

• Copy Results: Export complete analysis as JSON for further processing
• Security Analysis: Automatic SSL, DNS, and email security checks for domains
• Security Tools Suite: Access to 14 specialized cybersecurity analysis tools
• Fallback Mechanisms: Automatic failover to IANA RDAP service for reliability
• Rate Limiting: Built-in protection against abuse while allowing legitimate research

Our comprehensive cybersecurity toolkit is now available (see /tools page):

• ✅ Domain Age Calculator - Identify newly registered domains and flag suspicious young domains
• ✅ Domain Reputation Scoring - Multi-factor risk assessment and reputation analysis
• ✅ Domain Parking Analysis - Detect parked domains and potential cybersquatting

• ✅ Typosquatting Detection - Find domain variations and suspicious registrations
• ✅ Homograph Attack Detection - Identify Unicode character attacks and spoofing attempts
• ✅ Malware C2 Detection - Command & control infrastructure analysis
• ✅ Fast Flux Detection - Identify fast-changing malicious hosting patterns
• ✅ Suspicious TLD Flagging - Risk assessment based on top-level domains

• ✅ SSL Configuration Assessment - Comprehensive SSL/TLS security analysis
• ✅ Certificate Transparency Monitoring - CT log analysis and anomaly detection

• ✅ SPF Analysis - Sender Policy Framework record validation and assessment
• ✅ DMARC Assessment - DMARC policy analysis and implementation guidance

• ✅ Blacklist Aggregation - Multi-provider security vendor blacklist checking
• ✅ Phishing Lookup - Domain-based phishing detection and analysis

• Threat intelligence integration
• Passive DNS analysis
• Network topology mapping
• Machine learning threat detection
• Enterprise monitoring and alerting

We welcome contributions from the cybersecurity and development community!

1. Fork the repository
2. Create a feature branch: git checkout -b feature/amazing-feature
3. Commit your changes: git commit -m 'Add amazing feature'
4. Push to branch: git push origin feature/amazing-feature
5. Open a Pull Request

• 🔧 Core Features: RDAP parsing improvements and new query types
• 🛡️ Security Tools: Implementation of planned cybersecurity features
• 🎨 UI/UX: Interface improvements and user experience enhancements
• 📚 Documentation: Guides, tutorials, and API documentation
• 🧪 Testing: Test coverage and quality assurance

• 🎯 Purpose: Domain intelligence and cybersecurity research
• 👥 Target Users: Security researchers, IT professionals, cybersecurity analysts
• 🛡️ Security Tools: 14 specialized tools available with 54+ more planned
• 📈 Roadmap: Phase 1 complete, continuing development across 4 phases
• 🔄 Updates: Active development with regular feature releases
• 🌍 Accessibility: Free, open-source, and globally available

This project is licensed under the MIT License - see the LICENSE file for details.

• ✅ Free Forever: Core functionality will always be free
• ✅ Community Driven: Development guided by user feedback
• ✅ Transparent: All code and development processes are public
• ✅ Secure: Regular security audits and updates

Special thanks to:

• IANA for RDAP bootstrap data and standards
• IETF for RDAP protocol development (RFC 7483)
• Vercel for hosting and deployment platform
• Open Source Community for contributions and feedback

• 🐛 Issues: GitHub Issues
• 💬 Discussions: GitHub Discussions
• 📧 Security: Report security issues responsibly via GitHub Security tab
• ⭐ Star: Show support by starring the repository

Built with ❤️ by the cybersecurity community for the cybersecurity community.