crt.sh vs Vulneri ASM: side-by-side comparison (2026)
crt.sh is a free external attack surface management solution. Vulneri ASM is a commercial external attack surface management solution by Vulneri. Features, integrations, deployment and the company behind each one, side by side.
Bash script for subdomain enumeration via crt.sh certificate transparency logs.
ASM platform for continuous discovery and risk validation of internet-exposed assets.
Side-by-side comparison
Feature
crt.sh
Vulneri ASM
Pricing model
Free
Commercial
Category
External Attack Surface Management
External Attack Surface Management
Deployment and fit
Deployment type
On-Premises
Cloud
Company size fit
Startup, SMB, Mid-Market, Enterprise
SMB, Mid-Market, Enterprise
Company
Company
–
Vulneri
Use cases and capabilities
Subdomain Enumeration
Yes
No
Reconnaissance
Yes
Yes
Open Source
Yes
No
Bug Bounty
Yes
No
Enumeration
Yes
No
Network Reconnaissance
Yes
No
SSL
Yes
No
DNS Security
Yes
No
Security Scanning
Yes
No
Attack Paths
No
Yes
Vulnerability Prioritization
No
Yes
Misconfiguration
No
Yes
Network Discovery
No
Yes
Visibility
No
Yes
Security Reporting
No
Yes
Inventory
No
Yes
Third Party Security
No
Yes
Vulnerability
No
Yes
Core features
5 features listed
10 features listed
Integrations
1 integration listed
No integrations listed
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