Quick Facts
- Category
- WHOIS and RDAP APIs, IP intelligence and reputation APIs
- Website
- www.ip2whois.com
- Pricing Starts At
- $49/month for 5,000 Domain WHOIS queries
- Free Tier
- 500 Domain WHOIS queries/month with attribution
- TLD Coverage
- 1,855 TLDs
- Enterprise Plan
- $499/month for 150,000 Domain WHOIS queries
Pros & Cons
✓ Pros
- Generous free tier (500 queries/month)
- Extensive TLD coverage (1,855 extensions)
- Part of established IP2Location ecosystem
- Multi-language SDKs (PHP, Python, Ruby, Go, Node.js)
- IDN/Punycode support
- Simple API key authentication
− Cons
- No historical WHOIS data
- Jump from free to paid tier is steep ($0 to $49)
- No bulk lookup endpoint in base API
- Rate limits not well documented
- GDPR limits contact data availability (industry-wide)
🎯 Our Verdict
IP2WHOIS offers a solid WHOIS lookup API with excellent TLD coverage and a reasonable free tier. The integration with IP2Location products is valuable for teams already in that ecosystem. For simple WHOIS lookups, it delivers, but the lack of historical data and bulk operations limits its appeal for advanced use cases.
Best For: Developers needing simple WHOIS lookups, IP2Location ecosystem users, fraud prevention teams
Not Recommended For: Historical WHOIS research, bulk operations, enterprises needing comprehensive threat intel
Key Features
📋
Domain WHOIS
Registration dates, contacts, nameservers
🌍
IP Geolocation
Bundled with IP2Location services
🔗
Hosted Domain API
Find domains on same server
💻
Multi-SDK Support
PHP, Python, Ruby, Go, Node.js
Pricing
| Tier | Price | Credits/Requests |
|---|---|---|
| Free | 500 Domain WHOIS queries/month with attribution | Variable |
| Starter | $49/month for 5,000 Domain WHOIS queries | Variable |
| Enterprise | $499/month for 150,000 Domain WHOIS queries | Variable |
Sources
Last updated:
IP2WHOIS vs DomScan
| Feature | IP2WHOIS | DomScan |
|---|---|---|
| Free Tier | ✓ | ✓ 10,000/month |
| Domain Availability | ✓ | ✓ |
| WHOIS Data | ✓ | ✓ |
| DNS Lookup | − | ✓ |
| Domain Valuation | − | ✓ |
| Brand Monitoring | − | ✓ |
| MCP/AI Integration | − | ✓ |
| Bulk Operations | Limited | ✓ |
