# gaussrf vs Shannon: side-by-side comparison (2026)

[gaussrf](https://cybersectools.com/tools/gaussrf) is a free [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution. [Shannon](https://cybersectools.com/tools/shannon) is a free [penetration testing](https://cybersectools.com/categories/pentesting-tools) solution by [Keygraph](https://cybersectools.com/companies/keygraph). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | gaussrf | Shannon |
|---|---|---|
| Pricing model | Free | Free |
| Category | Penetration Testing | Penetration Testing |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market |
| GitHub stars | 171 | – |
| Last commit | Nov 2020 | – |
| Company | – | Keygraph |
| Headquarters | – | – |

### Use cases and capabilities

| | gaussrf | Shannon |
|---|---|---|
| URL Filtering | Yes | – |
| SSRF | Yes | Yes |
| Cyber Threat Intelligence | Yes | – |
| AI Pentesting | – | Yes |
| Open Source | – | Yes |
| DAST | – | Yes |
| SAST | – | Yes |
| SQL Injection | – | Yes |
| XSS | – | Yes |
| Penetration Testing Framework | – | Yes |
| OWASP | – | Yes |
| Vulnerability Exploitation | – | Yes |

### Core features

**gaussrf**

No features listed.

**Shannon**

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

### Integrations

**gaussrf**

No integrations listed.

**Shannon**

9 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.

- [gaussrf](https://cybersectools.com/tools/gaussrf) fits if you want a cloud product, you are an enterprise and you want an open-source product.
- [Shannon](https://cybersectools.com/tools/shannon) fits if you need to run it on your own servers.

## gaussrf vs Shannon FAQ

Common questions when comparing gaussrf vs Shannon for penetration testing.

### What is the difference between gaussrf and Shannon?

**gaussrf**: A tool for identifying potential security threats by fetching known URLs and filtering out URLs with open redirection or SSRF parameters.

**Shannon**: Open-source AI-driven whitebox pentester for web apps and APIs. Built by Keygraph.

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

### Who makes gaussrf and Shannon?

**gaussrf** is open-source with 171 GitHub stars. **Shannon** is made by Keygraph. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is gaussrf a good alternative to Shannon?

Often, yes. gaussrf and Shannon are both Penetration Testing products, and both cover SSRF. Key differences: gaussrf is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [gaussrf vs Red Specter POLTERGEIST](https://cybersectools.com/compare/gaussrf-vs-red-specter-poltergeist)
- [gaussrf vs ZeroThreat.ai](https://cybersectools.com/compare/gaussrf-vs-zerothreatai)
- [gaussrf vs Ridge Security RidgeBot OWASP Compliance](https://cybersectools.com/compare/gaussrf-vs-ridge-security-ridgebot-owasp-compliance)
- [Shannon vs Red Specter POLTERGEIST](https://cybersectools.com/compare/red-specter-poltergeist-vs-shannon)
- [Shannon vs ZeroThreat.ai](https://cybersectools.com/compare/shannon-vs-zerothreatai)
- [Shannon vs Ridge Security RidgeBot OWASP Compliance](https://cybersectools.com/compare/ridge-security-ridgebot-owasp-compliance-vs-shannon)

## Alternatives to each

- [See all gaussrf alternatives](https://cybersectools.com/alternatives/gaussrf)
- [See all Shannon alternatives](https://cybersectools.com/alternatives/shannon)

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Source: https://cybersectools.com/compare/gaussrf-vs-shannon

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

More on gaussrf and Shannon: 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