# assetfinder vs Censys Attack Surface Management: side-by-side comparison (2026)

[assetfinder](https://cybersectools.com/tools/assetfinder) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. [Censys Attack Surface Management](https://cybersectools.com/tools/censys-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Censys](https://cybersectools.com/companies/censys). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Censys Attack Surface Management](https://cybersectools.com/tools/censys-attack-surface-management)

Best for: Teams wanting broad internet data behind discovery

It is on the list because discovery rests on a map of the whole internet that Censys keeps current, and the same data serves threat hunting, which suits a team that wants one source for both jobs. It fits mid-market and enterprise companies. Ask how it ranks risk for your assets, since a broad map is only as useful as the order it puts findings in.

From [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

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

| | assetfinder | Censys Attack Surface Management |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | 3,393 | – |
| Last commit | Apr 2020 | – |
| Company | – | Censys |
| Headquarters | – | – |

### Use cases and capabilities

| | assetfinder | Censys Attack Surface Management |
|---|---|---|
| Enumeration | Yes | – |
| Reconnaissance | Yes | Yes |
| Network Reconnaissance | Yes | – |
| Subdomain Enumeration | Yes | – |
| Network Discovery | – | Yes |
| Blue Team | – | Yes |

### Core features

**assetfinder**

No features listed.

**Censys Attack Surface Management**

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

### Integrations

**assetfinder**

No integrations listed.

**Censys Attack Surface Management**

16 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.

- [assetfinder](https://cybersectools.com/tools/assetfinder) 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.
- [Censys Attack Surface Management](https://cybersectools.com/tools/censys-attack-surface-management) fits if you want a cloud product.

## assetfinder vs Censys Attack Surface Management FAQ

Common questions when comparing assetfinder vs Censys Attack Surface Management for external attack surface management.

### What is the difference between assetfinder and Censys Attack Surface Management?

**assetfinder**: A command-line tool for discovering domains and subdomains related to a target domain during reconnaissance activities.

**Censys Attack Surface Management**: Internet intelligence platform for asset discovery and attack surface mapping. Built by Censys.

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

### Who makes assetfinder and Censys Attack Surface Management?

**assetfinder** is open-source with 3,393 GitHub stars. **Censys Attack Surface Management** is made by Censys. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is assetfinder a good alternative to Censys Attack Surface Management?

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

## Related comparisons

- [assetfinder vs MGM Security Partners recon me](https://cybersectools.com/compare/assetfinder-vs-mgm-security-partners-recon-me)
- [assetfinder vs Cylana EASM](https://cybersectools.com/compare/assetfinder-vs-cylana-easm)
- [assetfinder vs CyCognito EASM Platform](https://cybersectools.com/compare/assetfinder-vs-cycognito-easm-platform)
- [Censys Attack Surface Management vs MGM Security Partners recon me](https://cybersectools.com/compare/censys-attack-surface-management-vs-mgm-security-partners-recon-me)
- [Censys Attack Surface Management vs Cylana EASM](https://cybersectools.com/compare/censys-attack-surface-management-vs-cylana-easm)
- [Censys Attack Surface Management vs CyCognito EASM Platform](https://cybersectools.com/compare/censys-attack-surface-management-vs-cycognito-easm-platform)

## Alternatives to each

- [See all assetfinder alternatives](https://cybersectools.com/alternatives/assetfinder)
- [See all Censys Attack Surface Management alternatives](https://cybersectools.com/alternatives/censys-attack-surface-management)

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Source: https://cybersectools.com/compare/assetfinder-vs-censys-attack-surface-management

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

More on assetfinder and Censys Attack Surface Management: 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