# Cobalt Attack Surface Monitoring vs crt.guru: side-by-side comparison (2026)

[Cobalt Attack Surface Monitoring](https://cybersectools.com/tools/cobalt-attack-surface-monitoring) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Cobalt](https://cybersectools.com/companies/cobalt). [crt.guru](https://cybersectools.com/tools/crtguru) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Crt.guru](https://cybersectools.com/companies/crtguru). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Google Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | Cobalt Attack Surface Monitoring | crt.guru |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Cobalt | Crt.guru |
| Headquarters | – | – |

### Use cases and capabilities

| | Cobalt Attack Surface Monitoring | crt.guru |
|---|---|---|
| Reconnaissance | Yes | – |
| TLS | – | Yes |
| SSL | – | Yes |
| PCI DSS | – | Yes |
| NIST | – | Yes |
| Security Scanning | – | Yes |
| Alerting | – | Yes |
| Security Compliance Training | – | Yes |
| Security Reporting | – | Yes |
| Vulnerability | – | Yes |
| REST API | – | Yes |

### Core features

**Cobalt Attack Surface Monitoring**

7 features listed. Sign in on the page to see them.

**crt.guru**

10 features listed. Sign in on the page to see them.

### Integrations

**Cobalt Attack Surface Monitoring**

15 integrations listed. Sign in on the page to see them.

**crt.guru**

4 integrations listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [crt.guru](https://cybersectools.com/tools/crtguru) fits if you are a startup.

## Cobalt Attack Surface Monitoring vs crt.guru FAQ

Common questions when comparing Cobalt Attack Surface Monitoring vs crt.guru for external attack surface management.

### What is the difference between Cobalt Attack Surface Monitoring and crt.guru?

**Cobalt Attack Surface Monitoring**: Continuous external asset discovery and monitoring with daily domain scans, built by Cobalt.

**crt.guru**: External TLS cert monitoring with expiry alerts, vuln scanning & compliance reports, built by Crt.guru.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Cobalt Attack Surface Monitoring and crt.guru?

**Cobalt Attack Surface Monitoring** is made by Cobalt. **crt.guru** is made by Crt.guru. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Cobalt Attack Surface Monitoring a good alternative to crt.guru?

Often, yes. Cobalt Attack Surface Monitoring and crt.guru are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Cobalt Attack Surface Monitoring vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-cobalt-attack-surface-monitoring)
- [Cobalt Attack Surface Monitoring vs SurfaceDiff](https://cybersectools.com/compare/cobalt-attack-surface-monitoring-vs-surfacediff)
- [Cobalt Attack Surface Monitoring vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/cobalt-attack-surface-monitoring-vs-ddactic-attack-surface-discovery)
- [crt.guru vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-crtguru)
- [crt.guru vs SurfaceDiff](https://cybersectools.com/compare/crtguru-vs-surfacediff)
- [crt.guru vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/crtguru-vs-ddactic-attack-surface-discovery)

## Alternatives to each

- [See all Cobalt Attack Surface Monitoring alternatives](https://cybersectools.com/alternatives/cobalt-attack-surface-monitoring)
- [See all crt.guru alternatives](https://cybersectools.com/alternatives/crtguru)

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Source: https://cybersectools.com/compare/cobalt-attack-surface-monitoring-vs-crtguru

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/cobalt-attack-surface-monitoring.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Cobalt Attack Surface Monitoring and crt.guru: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md