# Assetnote Exposure Engine vs Sudomy: side-by-side comparison (2026)

[Assetnote Exposure Engine](https://cybersectools.com/tools/assetnote-exposure-engine) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Assetnote](https://cybersectools.com/companies/assetnote). [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

| | Assetnote Exposure Engine | 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 | Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 2,241 |
| Last commit | – | Feb 2024 |
| Company | Assetnote | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Assetnote Exposure Engine | Sudomy |
|---|---|---|
| Vulnerability | Yes | – |
| Attack Paths | Yes | – |
| Security Scanning | Yes | – |
| Vulnerability Prioritization | Yes | – |
| IOC | Yes | – |
| Vulnerability Intelligence | Yes | – |
| Continuous Testing | Yes | – |
| Security Research | Yes | Yes |
| Alerting | Yes | – |
| Inventory | Yes | – |
| Bug Bounty | – | Yes |
| Subdomain Enumeration | – | Yes |

### Core features

**Assetnote Exposure Engine**

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

**Sudomy**

No features listed.

## Which one fits you

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

- [Assetnote Exposure Engine](https://cybersectools.com/tools/assetnote-exposure-engine) 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 or a small business, you need a free product and you want an open-source product.

## Assetnote Exposure Engine vs Sudomy FAQ

Common questions when comparing Assetnote Exposure Engine vs Sudomy for external attack surface management.

### What is the difference between Assetnote Exposure Engine and Sudomy?

**Assetnote Exposure Engine**: Continuous exposure detection & verification engine for attack surface mgmt. Built by Assetnote.

**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 Assetnote Exposure Engine and Sudomy?

**Assetnote Exposure Engine** is made by Assetnote founded in 2018-01-01T00:00:00.000Z. **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 Assetnote Exposure Engine a good alternative to Sudomy?

Often, yes. Assetnote Exposure Engine and Sudomy are both External Attack Surface Management products, and both cover Security Research. Key differences: Assetnote Exposure Engine 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

- [Assetnote Exposure Engine vs Attaxion](https://cybersectools.com/compare/assetnote-exposure-engine-vs-attaxion)
- [Assetnote Exposure Engine vs MoreSec Sentry Cloud](https://cybersectools.com/compare/assetnote-exposure-engine-vs-moresec-sentry-cloud)
- [Assetnote Exposure Engine vs CyCognito EASM Platform](https://cybersectools.com/compare/assetnote-exposure-engine-vs-cycognito-easm-platform)
- [Sudomy vs Attaxion](https://cybersectools.com/compare/attaxion-vs-sudomy)
- [Sudomy vs MoreSec Sentry Cloud](https://cybersectools.com/compare/moresec-sentry-cloud-vs-sudomy)
- [Sudomy vs CyCognito EASM Platform](https://cybersectools.com/compare/cycognito-easm-platform-vs-sudomy)

## Alternatives to each

- [See all Assetnote Exposure Engine alternatives](https://cybersectools.com/alternatives/assetnote-exposure-engine)
- [See all Sudomy alternatives](https://cybersectools.com/alternatives/sudomy)

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Source: https://cybersectools.com/compare/assetnote-exposure-engine-vs-sudomy

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More on Assetnote Exposure Engine 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