Overview
Cloudflare Registrar
At-Cost Registrar with Beta API Workflows
Cloudflare Registrar charges registry list prices and offers a beta API for search, authoritative availability and pricing checks, and registration on supported extensions. Checks can surface premium pricing, but the beta does not currently support premium registration. Future support will require explicit fee acknowledgement. Renewals, transfers, and contact updates are not yet available in the beta.
No separate API fee; registration is billableSecurityTrails
DNS & Domain Intelligence for Security Research
SecurityTrails provides comprehensive DNS intelligence, passive DNS data, subdomain enumeration, and WHOIS history for security researchers and threat intelligence teams.
50 queries/month freePricing Comparison
| Pricing | Cloudflare Registrar | SecurityTrails |
|---|---|---|
| Free Tier | No separate API fee; registration is billable | 50 queries/month free |
| Paid Plans | Registry list price for successful registrations | Usage-based plans via sales |
| Enterprise | Enterprise and registrar workflows | Custom enterprise plans |
| TLD Coverage | 400+ TLDs | 320M+ domains indexed |
Feature Comparison
| Feature | Cloudflare Registrar | SecurityTrails |
|---|---|---|
| Free Tier | Not Included | Limited |
| API Access | Limited | Included |
| Bulk Operations | Limited | Included |
| Real-time Data | Limited | Included |
| WHOIS Data | Limited | Included |
| DNS Lookup | Included | Included |
| Domain Valuation | Not Included | Not Included |
| Brand Monitoring | Not Included | Limited |
| MCP/AI Integration | Included | Not Included |
Which is Better?
Choose Cloudflare Registrar if you need
- Zero markup on domains
- Beta API can check up to 20 domains at once
- Free DNSSEC, CDN, and SSL
Choose SecurityTrails if you need
- Massive passive DNS database
- Excellent subdomain enumeration
- Historical WHOIS and DNS 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)
- ✓ 1,100+ TLDs supported
- ✓ MCP integration for AI assistants
- ✓ Domain valuation, brand monitoring, OSINT
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