Overview
Domainr (Fastly)
Fastly-backed Domain Search API
Domainr is now part of Fastly. New integrations use the Fastly Domain Research API for domain search and availability; the original Domainr API documentation and endpoints are deprecated.
10,000 requests/month per Fastly Domain Research API meterWhoAPI
Established Domain Availability & WHOIS API
WhoAPI provides domain availability checking and WHOIS lookup APIs with a focus on accuracy and bulk operations.
10,000 requests for new clientsPricing Comparison
| Pricing | Domainr (Fastly) | WhoAPI |
|---|---|---|
| Free Tier | 10,000 requests/month per Fastly Domain Research API meter | 10,000 requests for new clients |
| Paid Plans | Status from $0.0005/request after the free allowance | $52/month for 40,000 requests |
| Enterprise | Published volume pricing; enterprise quote available | $499/month for 100,000 requests; enterprise custom |
| TLD Coverage | ICANN-accredited global coverage | 1,500+ TLDs |
Feature Comparison
| Feature | Domainr (Fastly) | WhoAPI |
|---|---|---|
| Free Tier | Included | Limited |
| API Access | Included | Included |
| Bulk Operations | Limited | Included |
| Real-time Data | Included | Included |
| WHOIS Data | Not Included | Included |
| DNS Lookup | Not Included | Limited |
| Domain Valuation | Not Included | Not Included |
| Brand Monitoring | Not Included | Not Included |
| MCP/AI Integration | Not Included | Not Included |
Which is Better?
Choose Domainr (Fastly) if you need
- Backed by Fastly infrastructure
- Creative domain suggestions
- 10,000 precise or estimated status requests free each month
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)
- ✓ 1,100+ TLDs supported
- ✓ MCP integration for AI assistants
- ✓ Domain valuation, brand monitoring, OSINT
Related Comparisons
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