Overview
DomainTools
Enterprise Domain Intelligence & Threat Research
DomainTools focuses on high-end security workflows with passive DNS, reputation scoring, historical data, and enterprise investigation products.
No free tierWhoAPI
Established Domain Availability & WHOIS API
WhoAPI provides domain availability checking and WHOIS lookup APIs with a focus on accuracy and bulk operations.
10,000 welcome creditsPricing Comparison
| Pricing | DomainTools | WhoAPI |
|---|---|---|
| Free Tier | No free tier | 10,000 welcome credits |
| Paid Plans | Custom enterprise contracts | From $23/month |
| Enterprise | Annual platform subscriptions | Custom enterprise plans |
| TLD Coverage | Hundreds of millions of domains tracked | 1,500+ TLDs |
Feature Comparison
| Feature | DomainTools | WhoAPI |
|---|---|---|
| Free Tier | Not Included | Limited |
| API Access | Included | Included |
| Bulk Operations | Included | Included |
| Real-time Data | Included | Included |
| WHOIS Data | Included | Included |
| DNS Lookup | Included | Limited |
| Domain Valuation | Included | Not Included |
| Brand Monitoring | Premium Only | Not Included |
| MCP/AI Integration | Not Included | Not Included |
Which is Better?
Choose DomainTools if you need
- Decades of historical WHOIS data
- Advanced threat intelligence
- Iris, DNSDB, and monitoring products
Choose WhoAPI if you need
- Established since 2011
- Comprehensive WHOIS parsing
- Good for bulk availability checks
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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