SecurityTrails API™ vs Zero Day Initiative Published Advisories: side-by-side comparison (2026)
SecurityTrails API™ is a commercial threat intel feeds solution by SecurityTrails. Zero Day Initiative Published Advisories is a free threat intel feeds solution. Features, integrations, deployment and the company behind each one, side by side.
API providing historical & current DNS, WHOIS, and domain intelligence data.
List of publicly disclosed vulnerabilities with security filters and detailed advisories.
Side-by-side comparison
Feature
SecurityTrails API™
Zero Day Initiative Published Advisories
Pricing model
Commercial
Free
Category
Threat Intel Feeds
Threat Intel Feeds
Deployment and fit
Deployment type
Cloud
Cloud
Company size fit
SMB, Mid-Market, Enterprise
Startup, SMB, Mid-Market, Enterprise
Company
Company
SecurityTrails
–
Use cases and capabilities
DNS Security
Yes
No
Cyber Threat Intelligence
Yes
No
Subdomain Enumeration
Yes
No
IP Address
Yes
No
Reconnaissance
Yes
No
Threat Research
Yes
No
REST API
Yes
No
Fingerprinting
Yes
No
Investigation
Yes
No
Core features
10 features listed
No features listed
Need help choosing?
See more solutions in this category, or build a security stack from your picks.
