DomainTools
vs
RDAP API
DomainTools vs RDAP API
Domain API comparison
Overview
Which of these two providers fits my workload?
DomainTools
Enterprise domain intelligence & threat research
DomainTools focuses on security workflows with passive DNS, reputation scoring, historical data, and enterprise investigation products.
Free Novice account with limited web lookups; no APIRDAP API
RDAP-first domain, IP, and ASN lookup API
RDAP API centers on RDAP lookups for domains, IP ranges, and ASNs for teams that want structured registration data without buying a larger intelligence platform.
Seven-day free trial on every planPricing comparison
Watch out for: Credits, pages, requests, records, compute units, subscriptions, and browser-time blocks are not interchangeable.
| Pricing | DomainTools | RDAP API |
|---|---|---|
| Free tier | Free Novice account with limited web lookups; no API | Seven-day free trial on every plan |
| Paid plans | $99/month individual membership, web access only | $9/month Starter plan |
| Enterprise | API and enterprise access are custom priced | $199/month Business plan |
| How usage is billed | Credits, pages, requests, records, compute units, subscriptions, and browser-time blocks are not interchangeable. | Credits, pages, requests, records, compute units, subscriptions, and browser-time blocks are not interchangeable. |
Feature comparison
| Feature | DomainTools | RDAP API |
|---|---|---|
| Free tier | Not included | Limited |
| API access | Included | Included |
| Bulk operations | Included | Limited |
| Real-time data | Included | Included |
| WHOIS data | Included | Included |
| DNS lookup | Included | Not included |
| Domain valuation | Included | Not included |
| Brand monitoring | Premium only | Not included |
| MCP/AI integration | Included | Not included |
Which is better?
Choose DomainTools if you need
- Historical WHOIS data
- Threat intelligence and reputation scoring
- Iris, DNSDB, and monitoring products
Choose RDAP API if you need
- Focused RDAP experience for domains, IPs, and ASNs
- Seven-day free trial on every plan
Consider DomScan instead
DomScan combines broad features with 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
Sources
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