Internet infrastructure · DNS, WHOIS and infrastructure intelligence API
SecurityTrails API: coverage and access
DNS history, subdomain discovery, infrastructure attribution and attack-surface research
What it covers
Geography and granularity
Geography: global domains, IPs and DNS records
Granularity: domain, subdomain, DNS record, IP, organization and historical timestamp
Source type: DNS, WHOIS and infrastructure intelligence API
Potential use
DNS history, subdomain discovery, infrastructure attribution and attack-surface research
Access and cost
REST API and web platform
account and API key
Cost: paid subscription; demo/signup required
Update cadence: current data plus historical records; provider continuously updates collection
- Provider page ↗
- Documentation and access details ↗Check the provider's current terms and instructions before use
Interpret carefully
Limits that affect the decision
passive DNS and WHOIS histories can contain gaps, stale records and attribution ambiguity
current data plus historical records; provider continuously updates collection
This record summarizes source documentation; Jon Bishop did not conduct an independent audit of the underlying dataset.