Certstream vs SecurityTrails API™: side-by-side comparison (2026)
Certstream is a free threat intel feeds solution. SecurityTrails API™ is a commercial threat intel feeds solution by SecurityTrails. Features, integrations, deployment and the company behind each one, side by side.
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Real-time monitoring tool for newly issued SSL certificates.
API providing historical & current DNS, WHOIS, and domain intelligence data.
Side-by-side comparison
Feature
Certstream
SecurityTrails API™
Pricing model
Free
Commercial
Category
Threat Intel Feeds
Threat Intel Feeds
Deployment and fit
Deployment type
Cloud
Cloud
Company size fit
Startup, SMB, Mid-Market, Enterprise
SMB, Mid-Market, Enterprise
Company
Company
–
SecurityTrails
Use cases and capabilities
SSL
Yes
No
DNS Security
No
Yes
Cyber Threat Intelligence
No
Yes
Subdomain Enumeration
No
Yes
IP Address
No
Yes
Reconnaissance
No
Yes
Threat Research
No
Yes
REST API
No
Yes
Fingerprinting
No
Yes
Investigation
No
Yes
Core features
No features listed
10 features listed
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