Bulk Reverse IP Lookup Tool
Find all domains hosted on multiple servers simultaneously. Professional-grade reverse IP lookup for security research, competitive analysis, and hosting investigation.
Bulk Reverse IP Lookup
🔗 API Integration
💡 Reverse IP Lookup Tips
• Input formats: One IP per line, comma, or semicolon separated
• Shared hosting: Look for high domain counts (50+ domains on one IP)
• Security research: Check SSL status and website activity for threat analysis
• Competitive analysis: Discover competitor networks and hosting patterns
• Export options: Use CSV for spreadsheet analysis, JSON for developer tools
• Rate limits: Free users: 100 IPs per batch, API users: 1000 IPs per batch
• Data freshness: Results cached for 24 hours, real-time queries available
What is Reverse IP Lookup?
Reverse IP lookup discovers all domain names hosted on a specific IP address. While forward DNS resolves domain to IP, reverse lookup finds all domains sharing the same server infrastructure.
Our bulk tool processes multiple IP addresses simultaneously, making it perfect for large-scale investigations, security research, and hosting analysis.
Use Cases:
- • Security & threat intelligence research
- • Competitive analysis and market research
- • Hosting provider analysis and comparison
- • Identifying website relationships and networks
- • Investigating suspicious or malicious domains
- • SEO analysis of shared hosting environments
Professional Features
Bulk Processing
Process up to 100 IP addresses simultaneously. Results organized by IP with comprehensive domain information for each discovery.
Real-time Data
Query multiple authoritative sources for current hosting data. Results include hosting provider, SSL status, and website availability.
Export & API
Export results in multiple formats (CSV, JSON, Excel). API access for automated workflows and integration with security tools.
Advanced Analysis
Technology detection, traffic estimates, and hosting relationships. Perfect for competitive intelligence and security research.
Frequently Asked Questions
How accurate are the results?
We combine data from multiple authoritative sources including DNS records, hosting provider APIs, and web crawling data to provide comprehensive and accurate domain discoveries.
Can I export results for analysis?
Yes, results can be exported in CSV, JSON, and Excel formats. Premium users get additional metadata including traffic estimates and technology stacks.
Is this legal for security research?
Yes, reverse IP lookup uses publicly available DNS information. It's widely used for legitimate security research, competitive analysis, and infrastructure investigation.
How often is the data updated?
We perform real-time queries for immediate results and maintain a database updated every 24 hours. Cached results improve performance while ensuring data freshness.