SecurityTrails is a cybersecurity platform providing comprehensive domain, IP, DNS, and WHOIS intelligence data. It offers historical DNS records, subdomain discovery, WHOIS history, associated domains, passive DNS datasets, and website technology detection to support threat hunting, brand protection, cyber forensics, and attack surface management.
Tools
Bulk Static Asset Rules
Bulk add or remove static asset rules for a SecurityTrails ASI project. Static asset rules define which domains/IPs are included or excluded from the project's monitoring scope. This operation processes up to 1000 rules (combined add + remove) per request. The API processes rules asynchronously, waiting up to 2 seconds for completion. If processing takes longer, task_ids are returned for status polling. Note: Requires a valid project_id from the List Projects endpoint. Use the Get Static Assets endpoint to verify changes after bulk operations complete.
Get Company Associated Ips
Tool to retrieve IPs associated with a company domain. Use when you need to find all IP addresses linked to an organization's domain name.
Get Domain Details
Retrieves comprehensive domain information from SecurityTrails including current DNS records, infrastructure details, and statistics. This tool fetches detailed DNS data (A, AAAA, MX, NS, SOA, TXT records) along with metadata about when records were first seen, which organizations own the infrastructure, and how many other domains share the same servers. Useful for domain reconnaissance, infrastructure mapping, security analysis, and understanding domain configurations. Returns structured data with typed fields for easy programmatic access by AI agents.
Get Domain Ssl
Tool to fetch current and historical SSL certificate details for a hostname. Use when you need to retrieve SSL data after identifying the domain.
Ip Search Statistics
Fetch aggregated statistics for IP addresses matching a DSL query. Returns top open ports by frequency, common reverse DNS patterns, and total count. Useful for analyzing IP infrastructure patterns, port distributions, and PTR records across specific IP ranges or reverse DNS domains.
List Asi Projects
Tool to list ASI projects available to the account. Use when you need project IDs for subsequent ASI operations.