GuardEon vs massdns: side-by-side comparison (2026)
GuardEon is a commercial external attack surface management solution by Infilux AppSec. massdns is a free external attack surface management solution. Features, integrations, deployment and the company behind each one, side by side.
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Agentless external attack surface & dark web monitoring platform.
A high-performance DNS stub resolver for bulk lookups and reconnaissance (subdomain enumeration)
Side-by-side comparison
Feature
GuardEon
massdns
Pricing model
Commercial
Free
Category
External Attack Surface Management
External Attack Surface Management
Deployment and fit
Deployment type
Cloud
On-Premises
Company size fit
SMB, Mid-Market, Enterprise
Startup, SMB, Mid-Market, Enterprise
Open source
GitHub stars
–
3,417
Last commit
–
Jul 2025
Company
Company
Infilux AppSec
–
Use cases and capabilities
Dark Web Monitoring
Yes
No
Digital Risk Protection
Yes
No
Attack Detection
Yes
No
Threat Feed
Yes
No
Reconnaissance
Yes
Yes
Supply Chain Security
Yes
No
Visibility
Yes
No
Cyber Threat Intelligence
Yes
No
Subdomain Enumeration
No
Yes
Security Tools
No
Yes
Core features
10 features listed
No features listed
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