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  5. crt.guru vs Vulneri ASM

crt.guru vs Vulneri ASM: Side-by-Side Comparison (2026)

Features, pricing, ratings, and pros & cons — compared head-to-head.

crt.guru is a commercial external attack surface management tool by crt.guru. Vulneri ASM is a commercial external attack surface management tool by Vulneri. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack.

CybersecToolsCST Verdict

Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:

crt.guru

Security teams managing external-facing services across multiple regions need crt.guru for its multi-protocol scanning and Certificate Transparency monitoring, which catches unauthorized cert issuance before your domain gets impersonated. The tool covers ID.AM and DE.CM effectively by mapping your cert portfolio across Frankfurt, New York, and Amsterdam simultaneously, then alerting at granular intervals (30, 14, 7, 1 day) so you're not racing against expiry deadlines. Skip this if your organization has zero external TLS endpoints or relies on a managed WAF vendor that already owns cert lifecycle; crt.guru solves a specific problem rather than replacing internal PKI tooling.

Vulneri ASM

Mid-market and enterprise teams drowning in false positives from their current ASM tool will find real value in Vulneri ASM's exploitability validation, which actually confirms which discovered assets pose immediate risk rather than just flagging everything. The platform covers ID.AM and ID.RA functions across cloud, SaaS, and on-premises infrastructure while automating ownership assignment to cut response friction. This is not the pick for organizations needing mature vendor support or a lengthy implementation runway; Vulneri is a seven-person shop based in Brazil, so you're buying technical strength and speed over hand-holding.

Data verified Jun 2026
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crt.guru

crt.guru

External TLS cert monitoring with expiry alerts, vuln scanning & compliance reports.

External Attack Surface Management
 Commercial
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Vulneri ASM

Vulneri ASM

ASM platform for continuous discovery and risk validation of internet-exposed assets.

External Attack Surface Management
 Commercial
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Side-by-Side Comparison

Feature
crt.guru
Vulneri ASM
Pricing Model
Commercial
Commercial
Category
External Attack Surface Management
External Attack Surface Management
Verified Vendor
Deployment & Fit
Deployment Type
Cloud
Cloud
Company Size Fit
Startup, SMB, Mid-Market, Enterprise
SMB, Mid-Market, Enterprise
Company Information
Company
crt.guru
Vulneri
Headquarters
Founded, Size & Funding
Get via API
Get via API
Use Cases & Capabilities
TLS
SSL
PCI DSS
NIST
Security Scanning
Alerting
Security Compliance Training
Security Reporting
Vulnerability
REST API
Attack Paths
Vulnerability Prioritization
Misconfiguration
Reconnaissance
Network Discovery
Visibility
Inventory
Third Party Security
NIST CSF 2.0 Coverage
NIST CSF 2.0 Coverage
ID - Identify72%
PR - Protect85%
DE - Detect60%
RS - Respond45%
RC - Recover38%
GV - Govern55%

NIST CSF 2.0 Mapping

Access NIST CSF 2.0 data from thousands of security products via MCP to assess your stack coverage.

Access via MCP
Core Features
  • Multi-region external TLS scanning (Frankfurt, New York, Amsterdam)
  • Certificate expiry alerts at 30, 14, 7, and 1 day intervals
  • Vulnerability scanning (Heartbleed, ROBOT, CCS Injection, weak ciphers)
  • Certificate revocation detection
  • Certificate Transparency log monitoring for unauthorized issuance
  • Compliance checks against Mozilla, PCI DSS 4.0, and NIST standards
  • One-click PDF compliance report generation
  • Portfolio risk scoring, compliance matrix, and expiry calendar
  • Automated asset discovery across domains, IPs, APIs, certificates, and applications
  • Cloud, SaaS, AI, and on-premises infrastructure coverage
  • Exploitability validation to confirm real-world risk
  • Detection of default passwords, misconfigurations, and exposed sensitive data
  • False positive reduction and noise filtering
  • Attack path identification for lateral movement and critical data exposure
  • AI-generated remediation guidance per finding
  • Automatic risk ownership assignment to responsible teams or individuals
Integrations
Email
Telegram
Discord
Slack
No integrations listed
Community
Community Votes
0
0
Bookmarks
User Reviews

No reviews yet

No reviews yet

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crt.guru vs Vulneri ASM FAQ

Common questions about comparing crt.guru vs Vulneri ASM for your external attack surface management needs.

crt.guru: External TLS cert monitoring with expiry alerts, vuln scanning & compliance reports. built by crt.guru. Core capabilities include Multi-region external TLS scanning (Frankfurt, New York, Amsterdam), Certificate expiry alerts at 30, 14, 7, and 1 day intervals, Vulnerability scanning (Heartbleed, ROBOT, CCS Injection, weak ciphers)..

Vulneri ASM: ASM platform for continuous discovery and risk validation of internet-exposed assets. built by Vulneri. Core capabilities include Automated asset discovery across domains, IPs, APIs, certificates, and applications, Cloud, SaaS, AI, and on-premises infrastructure coverage, Exploitability validation to confirm real-world risk..

Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.

crt.guru differentiates with Multi-region external TLS scanning (Frankfurt, New York, Amsterdam), Certificate expiry alerts at 30, 14, 7, and 1 day intervals, Vulnerability scanning (Heartbleed, ROBOT, CCS Injection, weak ciphers). Vulneri ASM differentiates with Automated asset discovery across domains, IPs, APIs, certificates, and applications, Cloud, SaaS, AI, and on-premises infrastructure coverage, Exploitability validation to confirm real-world risk.

crt.guru is developed by crt.guru. Vulneri ASM is developed by Vulneri. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

crt.guru and Vulneri ASM serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover Security Reporting, Vulnerability. Review the feature comparison above to determine which fits your requirements.

Have more questions? Browse our categories or search for specific tools.

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