Simple, predictable pricing. From the free API tier to the prototyper, business or enterprise, we have the solution for your needs.

SecurityTrails API







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Queries per month
Queries included. One page includes a maximum of 100 results
50 1,500 20,000 Flexible
Current DNS records
More than 3 Billion DNS records looked up each day
Historical DNS records
12 years of historical DNS with daily granularity
Get Subdomains
Our API returns a huge collection of subdomains
Domain whois
Current WHOIS
Fetch up-to-date WHOIS information
Historical WHOIS
5 years of historical WHOIS, revealing changes in domain ownership
Reverse WHOIS Searching
Get domains by searching for information in individual WHOIS fields
WHOIS searching ×
Explore IPs
Navigate through IP subnets and neighborhoods
Reverse DNS searching
Reverse PTR searching and summaries
× ×
Advanced features
SQL-Like Query Language
Domain Specific Language for doing complex queries
× ×
Associated Domains
Map a company's footprint by fnding similar domains
× ×
Consulting services
A broad range of assistance in getting started or building custom data sets
× × 1h on-boarding call
For commercial use ×
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Search by Company name · Domains · Subdomains · TLDs · Registrar · DNS values: MX, NS, CNAME, SOA Mail, IPv4, IPv6 · WHOIS entries · Domain creation and expiry dates
For any company, find IP Blocks · Associated Domains · Subdomains · Reverse DNS entries · Certificates · WHOIS entries · DNS history
IP Tool access including Accurate IP geolocation · ASN information · IP type · and much more 

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Coventry University

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"We spent a ton of time and effort building out our own domain lists, but we gave up when we found SecurityTrails – the data was better than anything else we've seen, and allowed us to focus on our core product."

Ben Dowling
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"SecurityTrails solves the headache of accurately mapping a company's footprint with data you can't find anywhere else. If you are a security analyst or developer, you will get tremendous value from the most current domain intel through their API."

Bill Ladd

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