Overview
Domainr (Fastly)
Fastly-backed Domain Search API
Domainr is now part of Fastly. The original standalone API is deprecated, while Fastly and RapidAPI packages still cover search, status, and suggestion workflows.
RapidAPI: 10,000 requests/monthWhoAPI
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 | Domainr (Fastly) | WhoAPI |
|---|---|---|
| Free Tier | RapidAPI: 10,000 requests/month | 10,000 welcome credits |
| Paid Plans | High-volume plans via Fastly | From $23/month |
| Enterprise | Custom via Fastly | Custom enterprise plans |
| 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 | Limited | 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
- Lower-volume option via RapidAPI
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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