ctlogs.dev vs Sudomy: side-by-side comparison (2026)
ctlogs.dev is a commercial external attack surface management solution by Apps34. Sudomy is a free external attack surface management solution. Features, integrations, deployment and the company behind each one, side by side.
Fast Certificate Transparency search and JSON API for subdomain reconnaissance.
A subdomain enumeration tool for bug hunting and pentesting
Side-by-side comparison
Feature
ctlogs.dev
Sudomy
Pricing model
Commercial
Free
Category
External Attack Surface Management
External Attack Surface Management
Deployment and fit
Deployment type
Cloud
On-Premises
Company size fit
Startup
Startup, SMB, Mid-Market, Enterprise
Open source
GitHub stars
–
2,241
Last commit
–
Feb 2024
Company
Company
Apps34
–
Use cases and capabilities
Reconnaissance
Yes
No
OSINT
Yes
No
SSL
Yes
No
TLS
Yes
No
REST API
Yes
No
Cyber Threat Intelligence
Yes
No
DNS Security
Yes
No
Attack Detection
Yes
No
Subdomain Enumeration
Yes
Yes
Bug Bounty
No
Yes
Security Research
No
Yes
Core features
- Real-time Certificate Transparency Search
- Automated Subdomain Enumeration
- High-Performance REST JSON API
- Wildcard & Fingerprint Matching
- SSL/TLS Certificate History Tracking
- Attack Surface Mapping
- Historical Log Archiving
- Instant Domain & Issuer Filtering
No features listed
Integrations
REST API
cURL
Python
JSON
Webhooks
SIEM
No integrations listed
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