Overview
SecurityTrails
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.
No current public free-tier termsViewDNS
DNS, WHOIS, and Reverse Lookup Toolkit
ViewDNS.info offers a broad toolbox of DNS, reverse IP, reverse MX, WHOIS, and IP history lookups for investigators and operators.
250 sandbox queries, no card requiredPricing Comparison
| Pricing | SecurityTrails | ViewDNS |
|---|---|---|
| Free Tier | No current public free-tier terms | 250 sandbox queries, no card required |
| Paid Plans | Contact sales | $29/month for 1,000 queries |
| Enterprise | Custom pricing | $549/month for 100,000 queries; enterprise custom |
| TLD Coverage | 320M+ domains indexed | All major TLDs supported |
Feature Comparison
| Feature | SecurityTrails | ViewDNS |
|---|---|---|
| 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 | Included |
| Domain Valuation | Not Included | Not Included |
| Brand Monitoring | Limited | Not Included |
| MCP/AI Integration | Not Included | Not Included |
Which is Better?
Choose SecurityTrails if you need
- Massive passive DNS database
- Excellent subdomain enumeration
- Historical WHOIS and DNS data
Choose ViewDNS if you need
- Free web-based tools
- Wide range of reverse lookup tools
- Fast to evaluate from the browser
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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