# crt.guru vs Outpost24 CyberFlex: side-by-side comparison (2026)

[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). [Outpost24 CyberFlex](https://cybersectools.com/tools/outpost24-cyberflex) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Outpost24](https://cybersectools.com/companies/outpost24). 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, Mandiant Attack Surface Management and 4 more.

## Side-by-side comparison

| | crt.guru | Outpost24 CyberFlex |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Crt.guru | Outpost24 |
| Headquarters | – | – |

### Use cases and capabilities

| | crt.guru | Outpost24 CyberFlex |
|---|---|---|
| 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 | – |
| Dark Web Monitoring | – | Yes |

### Core features

**crt.guru**

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

**Outpost24 CyberFlex**

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

### Integrations

**crt.guru**

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

**Outpost24 CyberFlex**

1 integration 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.

## crt.guru vs Outpost24 CyberFlex FAQ

Common questions when comparing crt.guru vs Outpost24 CyberFlex for external attack surface management.

### What is the difference between crt.guru and Outpost24 CyberFlex?

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

**Outpost24 CyberFlex**: EASM platform combined with PTaaS for web app discovery and testing. Built by Outpost24.

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

### Who makes crt.guru and Outpost24 CyberFlex?

**crt.guru** is made by Crt.guru. **Outpost24 CyberFlex** is made by Outpost24. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is crt.guru a good alternative to Outpost24 CyberFlex?

Often, yes. crt.guru and Outpost24 CyberFlex are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [crt.guru vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-crtguru)
- [crt.guru vs DarkInvader EASM Platform](https://cybersectools.com/compare/crtguru-vs-darkinvader-easm-platform)
- [crt.guru vs MoreSec Sentry Cloud](https://cybersectools.com/compare/crtguru-vs-moresec-sentry-cloud)
- [Outpost24 CyberFlex vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-outpost24-cyberflex)
- [Outpost24 CyberFlex vs DarkInvader EASM Platform](https://cybersectools.com/compare/darkinvader-easm-platform-vs-outpost24-cyberflex)
- [Outpost24 CyberFlex vs MoreSec Sentry Cloud](https://cybersectools.com/compare/moresec-sentry-cloud-vs-outpost24-cyberflex)

## Alternatives to each

- [See all crt.guru alternatives](https://cybersectools.com/alternatives/crtguru)
- [See all Outpost24 CyberFlex alternatives](https://cybersectools.com/alternatives/outpost24-cyberflex)

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Source: https://cybersectools.com/compare/crtguru-vs-outpost24-cyberflex

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

More on crt.guru and Outpost24 CyberFlex: 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