Accurate and reliable information security data and tools are a go. Save time gathering and correlating data, so you can focus more on securing your infrastructure.

Attack Surface Intelligence™

Mitigating risk is easy with asset inventory, discovery tools, and monitoring. ASI is a customized solution, please contact us for an estimate.

SecurityTrails API™

Sign up for free and get 50 queries a month. Check current and historic DNS records, plus domain and IP data, or pick a more robust solution with WHOIS capabilities.


Explore the surface of any organization: Know DNS records, associated domains, IP blocks, open ports.

SecurityTrails Feeds™

The latest intel updated daily. Keep up with changes in Domain/subdomain, SSL certificates, internet-facing assets, and more. Since Feeds is a customized solution, please contact us for an estimate.

Attack Surface Intelligence™

Gain total understanding of your internet-facing infrastructure and manage all your assets easily.

Attack Surface Intelligence™
  • Inventory Management

    An easy-to-use web-based dashboard allows you to pivot between IP blocks, domain names, SSL certificates, WHOIS registrars and DNS records.
  • Attack Surface Intel

    Get the full picture about your company’s attack surface, see all open ports, affected IPs, domains, hosting provider and more.
  • Risk Detection

    Understand the different security risk that your project may be facing, including: open database ports, self signed certificates, and exposed staging/dev subdomains.
  • Comprehensive IP Tools

    Find IP geolocation, port history, associated devices, IPs, user-agent activity, hosted domains, P2P activity logs, remote access and detected VPNs.
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Plan Comparison Free Professional $500/mo Business $1500/mo Enterprise Contact Us
Queries per month
50 20,000 65,000 Flexible
Current DNS records
Historical DNS records
Get Subdomains
Domain WHOIS  
Current WHOIS
Historical WHOIS
Reverse WHOIS searching
WHOIS searching
IP address research
Reverse DNS searching
Advanced Features  
DSL - Domain Specific Language
Associated domains
Consulting services
1h on-boarding call 1h on-boarding call
For commercial use
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If you're an student or researcher wanting to use our products please contact us.


Know everything about a single domain or any organization’s public surface instantly.

  • Fast Internet Scans

    Updated daily and curated to detect open ports; fetch domain intelligence and critical IP data in seconds.
  • Search by

    Company name, domains, subdomains, TLDs, registrar, DNS values (MX, NS, CNAME, SOA Mail, IPv4, IPv6) WHOIS entries, domain creation, and experation dates.
  • Company Intel

    Find IP blocks, associated domains, subdomains, reverse DNS entries, certificates, WHOIS entries, and DNS history.
  • IP Data

    Get accurate IP geolocation, ASN information, IP type, logged user-agents, and more.
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SecurityTrails Feeds™

Get curated and current feeds for your cybersecurity team. Put our data to work on all your web, terminal, and desktop applications for greater awareness.

SecurityTrails Feeds™
  • Domain Data

    Access a complete list of all domains (ccTLD and gTLD), DMARC scans and full list of subdomains.
  • Company Intel

    Use associated domains to reveal real domain attribution, plus explore all certificate transparency log data.
  • IP & Port Data

    Shine a light on exposed apps and services with exhaustive active and passive port scans.
  • Custom Feeds

    Get fully customized data that's tailored to your applications.

SecurityTrails Feeds™ is a custom solution. Contact us for an accurate estimate.

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Trusted By

Lockheed Martin