# Domain Beacon vs SubOver: side-by-side comparison (2026)

[Domain Beacon](https://cybersectools.com/tools/domain-beacon) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [CVAAT Solutions](https://cybersectools.com/companies/cvaat-solutions). [SubOver](https://cybersectools.com/tools/subover) 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

| | Domain Beacon | SubOver |
|---|---|---|
| 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 | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 957 |
| Last commit | – | Aug 2018 |
| Company | CVAAT Solutions | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Domain Beacon | SubOver |
|---|---|---|
| Subdomain Enumeration | Yes | Yes |
| Vulnerability Intelligence | Yes | – |
| DNS Security | Yes | – |
| Security Research | – | Yes |

### Core features

**Domain Beacon**

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

**SubOver**

No features listed.

## Which one fits you

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

- [Domain Beacon](https://cybersectools.com/tools/domain-beacon) fits if you want a cloud product.
- [SubOver](https://cybersectools.com/tools/subover) fits if you need to run it on your own servers, you are a startup or an enterprise, you need a free product and you want an open-source product.

## Domain Beacon vs SubOver FAQ

Common questions when comparing Domain Beacon vs SubOver for external attack surface management.

### What is the difference between Domain Beacon and SubOver?

**Domain Beacon**: Provide intelligence about a domain. Built by CVAAT Solutions.

**SubOver**: A powerful tool for finding and exploiting subdomain takeover vulnerabilities.

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

### Who makes Domain Beacon and SubOver?

**Domain Beacon** is made by CVAAT Solutions founded in 2023-01-01T00:00:00.000Z. **SubOver** is open-source with 957 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Domain Beacon a good alternative to SubOver?

Often, yes. Domain Beacon and SubOver are both External Attack Surface Management products, and both cover Subdomain Enumeration. Key differences: Domain Beacon is Commercial while SubOver is Free, SubOver is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Domain Beacon vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-domain-beacon)
- [Domain Beacon vs Detectify Platform](https://cybersectools.com/compare/detectify-platform-vs-domain-beacon)
- [Domain Beacon vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-domain-beacon)
- [SubOver vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-subover)
- [SubOver vs Detectify Platform](https://cybersectools.com/compare/detectify-platform-vs-subover)
- [SubOver vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-subover)

## Alternatives to each

- [See all Domain Beacon alternatives](https://cybersectools.com/alternatives/domain-beacon)
- [See all SubOver alternatives](https://cybersectools.com/alternatives/subover)

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Source: https://cybersectools.com/compare/domain-beacon-vs-subover

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

More on Domain Beacon and SubOver: 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