# Guardz External Footprint vs Sudomy: side-by-side comparison (2026)

[Guardz External Footprint](https://cybersectools.com/tools/guardz-external-footprint) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Guardz](https://cybersectools.com/companies/guardz). [Sudomy](https://cybersectools.com/tools/sudomy) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. 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

| | Guardz External Footprint | Sudomy |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 2,241 |
| Last commit | – | Feb 2024 |
| Company | Guardz | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Guardz External Footprint | Sudomy |
|---|---|---|
| Dark Web Monitoring | Yes | – |
| DNS Security | Yes | – |
| SSL | Yes | – |
| TLS | Yes | – |
| Multi Tenancy | Yes | – |
| Bug Bounty | – | Yes |
| Security Research | – | Yes |
| Subdomain Enumeration | – | Yes |

### Core features

**Guardz External Footprint**

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

**Sudomy**

No features listed.

### Integrations

**Guardz External Footprint**

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

**Sudomy**

No integrations listed.

## Which one fits you

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

- [Guardz External Footprint](https://cybersectools.com/tools/guardz-external-footprint) fits if you want a cloud product.
- [Sudomy](https://cybersectools.com/tools/sudomy) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.

## Guardz External Footprint vs Sudomy FAQ

Common questions when comparing Guardz External Footprint vs Sudomy for external attack surface management.

### What is the difference between Guardz External Footprint and Sudomy?

**Guardz External Footprint**: External attack surface monitoring with dark web intelligence and scanning, built by Guardz.

**Sudomy**: A subdomain enumeration tool for bug hunting and pentesting.

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

### Who makes Guardz External Footprint and Sudomy?

**Guardz External Footprint** is made by Guardz. **Sudomy** is open-source with 2,241 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Guardz External Footprint a good alternative to Sudomy?

Often, yes. Guardz External Footprint and Sudomy are both External Attack Surface Management products. Key differences: Guardz External Footprint is Commercial while Sudomy is Free, Sudomy is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Guardz External Footprint vs ThreatDefence Integrated ASM](https://cybersectools.com/compare/guardz-external-footprint-vs-threatdefence-integrated-asm)
- [Guardz External Footprint vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-guardz-external-footprint)
- [Guardz External Footprint vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-guardz-external-footprint)
- [Sudomy vs ThreatDefence Integrated ASM](https://cybersectools.com/compare/sudomy-vs-threatdefence-integrated-asm)
- [Sudomy vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-sudomy)
- [Sudomy vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-sudomy)

## Alternatives to each

- [See all Guardz External Footprint alternatives](https://cybersectools.com/alternatives/guardz-external-footprint)
- [See all Sudomy alternatives](https://cybersectools.com/alternatives/sudomy)

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Source: https://cybersectools.com/compare/guardz-external-footprint-vs-sudomy

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

More on Guardz External Footprint and Sudomy: 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