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Security Data and APIs

We Offer Paid API and Data Services for Top Security Companies.

SecurityTrails API

APIs for Security Companies, Researchers and Teams

Tap into a treasure-trove of cyber security gold and get the info you can’t find anywhere else. We’re proud to offer security analysts and developers the most current DNS and domain intel with our powerful API.

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3.4 Trillion

Historical DNS lookups

3 Billion

Historical WHOIS records

805 Million

Total hostnames tracked

487 Million

Domains tracked

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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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"We were dreading parsing and storing WHOIS and DNS data until we found SecurityTrailsAPI. We integrated in just a day."

Jonathan Weber

"SecurityTrails is my source of truth when it comes to threat hunting and research. The speed of the API is crazy and the integrations with automation tools and SIEM tools makes it an easy choice."

Mickey Perre

Whitepaper: Identifying a Company's Online Footprint

Learn how our algorithms work to discover associated domains, IPs, and SSL.

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