Overview
Censys
Internet Intelligence and Attack Surface Platform
Censys delivers internet-wide scanning, certificate intelligence, and external attack surface discovery for security teams and researchers.
Community tier with limited monthly queriesIP2WHOIS
WHOIS API with IP2Location Integration
IP2WHOIS provides parsed WHOIS lookups, hosted-domain context, and ecosystem integrations for teams already using IP2Location services.
500 requests/month freePricing Comparison
| Pricing | Censys | IP2WHOIS |
|---|---|---|
| Free Tier | Community tier with limited monthly queries | 500 requests/month free |
| Paid Plans | Individual plans from $100/month | Paid plans from $39/month |
| Enterprise | Custom team and enterprise plans | Custom pricing available |
| TLD Coverage | Full IPv4/IPv6 coverage | 1,855 TLDs |
Feature Comparison
| Feature | Censys | IP2WHOIS |
|---|---|---|
| Free Tier | Limited | Included |
| API Access | Included | Included |
| Bulk Operations | Included | Limited |
| Real-time Data | Included | Included |
| WHOIS Data | Limited | Included |
| DNS Lookup | Included | Not Included |
| Domain Valuation | Not Included | Not Included |
| Brand Monitoring | Not Included | Not Included |
| MCP/AI Integration | Not Included | Not Included |
Which is Better?
Choose Censys if you need
- Comprehensive internet scanning
- Certificate and asset intelligence
- External attack surface discovery
Choose IP2WHOIS if you need
- Straightforward WHOIS lookup coverage
- Part of IP2Location ecosystem
- Useful alongside IP2Location data
Consider DomScan Instead
DomScan offers the best of both worlds with comprehensive features and developer-friendly pricing.
- ✓ Free tier: 10,000 credits/month (no credit card)
- ✓ 1,500+ TLDs supported
- ✓ MCP integration for AI assistants
- ✓ Domain valuation, brand monitoring, OSINT
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