SecurityTrails API
DNS security solutions
Network security software
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- Ease of management
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What is SecurityTrails API
SecurityTrails API is a domain and DNS intelligence API that provides access to current and historical DNS records, WHOIS data, and related internet asset metadata. It is used by security teams, threat researchers, and developers to enrich investigations, map infrastructure, and support monitoring and attribution workflows. The product is delivered as an API-first service intended for integration into SIEM/SOAR tools, internal dashboards, and automated analysis pipelines.
Broad DNS and WHOIS enrichment
The API provides programmatic access to DNS record data and domain registration information that can support investigation and enrichment use cases. Historical views help analysts understand changes over time, such as DNS pivots and infrastructure movement. This is useful for threat hunting, incident response, and third-party risk workflows that rely on domain context.
API-first for automation
SecurityTrails is designed to be consumed by applications and scripts rather than managed through a full administrative console. This supports high-volume enrichment, repeatable lookups, and integration into existing security tooling. Teams can embed results into internal products, case management, and automated playbooks.
Infrastructure mapping use cases
The dataset supports pivoting from domains to related assets (for example, via DNS relationships) to help map an organization’s or adversary’s footprint. This can accelerate discovery of related domains and services during investigations. It also supports monitoring scenarios where teams track changes to DNS and domain metadata over time.
Not a DNS control plane
SecurityTrails API focuses on intelligence and enrichment rather than operating DNS infrastructure. It does not replace managed DNS, authoritative DNS hosting, or DDI platforms that provide policy enforcement and operational controls. Organizations still need separate systems for DNS resolution, DHCP/IPAM, and DNS policy management.
Security controls are indirect
The product provides data that can inform security decisions, but it is not itself a blocking or inline protection layer. Implementing protections (for example, DNS filtering, WAF, or edge controls) requires additional tools and integration work. Value depends on how effectively teams operationalize the intelligence in their workflows.
Coverage and data freshness variability
As with many internet-wide intelligence datasets, completeness and timeliness can vary by TLD, registrar, and data source availability. Some records may be redacted or privacy-protected, limiting attribution detail. Teams typically need validation steps and may need to combine multiple sources for high-confidence conclusions.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Free | $0 (free tier referenced in official documentation/changelog) | Limited API access; includes API key creation in account panel; historical DNS and other advanced features limited on free app. |
| Paid / Commercial (Retail/Enterprise) | Not publicly listed — Contact sales | Official docs indicate paid subscription levels, quotas/rate limits, and that some endpoints/features require a custom subscription (e.g., SQL API, certain SSL endpoints). Pricing is not published on the vendor site; contact Sales for details. |
Seller details
SecurityTrails
Miami, Florida, United States
2017
Private
https://securitytrails.com/
https://x.com/securitytrails
https://www.linkedin.com/company/securitytrails
