# ShadowDragon Horizon Monitor vs SurfaceDiff: side-by-side comparison (2026)

[ShadowDragon Horizon Monitor](https://cybersectools.com/tools/shadowdragon-horizon-monitor) is a commercial [digital risk protection](https://cybersectools.com/categories/drp) solution by [ShadowDragon](https://cybersectools.com/companies/shadowdragon). [SurfaceDiff](https://cybersectools.com/tools/surfacediff) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [SurfaceDiff](https://cybersectools.com/companies/surfacediff). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Digital Risk Protection Solutions for Business](https://cybersectools.com/shortlists/best-drp-solutions) picks ZeroFox Digital Risk Protection, Rapid7 Threat Command, Group-IB Digital Risk Protection Platform and 4 more.

## Side-by-side comparison

| | ShadowDragon Horizon Monitor | SurfaceDiff |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Digital Risk Protection | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | ShadowDragon | SurfaceDiff |
| Headquarters | – | – |

### Use cases and capabilities

| | ShadowDragon Horizon Monitor | SurfaceDiff |
|---|---|---|
| OSINT | Yes | – |
| Investigation | Yes | – |
| Alerting | Yes | Yes |
| Dark Web Monitoring | Yes | – |
| Digital Risk Protection | Yes | – |
| Cyber Threat Intelligence | Yes | – |
| DNS Security | – | Yes |
| Port Scanning | – | Yes |
| TLS | – | Yes |
| Subdomain Enumeration | – | Yes |
| Network Scanning | – | Yes |
| Security Scanning | – | Yes |
| Reconnaissance | – | Yes |
| Visibility | – | Yes |
| Web Security | – | Yes |

### Core features

**ShadowDragon Horizon Monitor**

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

**SurfaceDiff**

9 features 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.

- [SurfaceDiff](https://cybersectools.com/tools/surfacediff) fits if you are a startup.

## ShadowDragon Horizon Monitor vs SurfaceDiff FAQ

Common questions when comparing ShadowDragon Horizon Monitor vs SurfaceDiff for digital risk protection.

### What is the difference between ShadowDragon Horizon Monitor and SurfaceDiff?

**ShadowDragon Horizon Monitor**: Continuous OSINT monitoring platform tracking identities, keywords & topics. Built by ShadowDragon.

**SurfaceDiff**: Continuous external attack surface monitoring that shows what changed between scans. Built by SurfaceDiff.

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

### Who makes ShadowDragon Horizon Monitor and SurfaceDiff?

**ShadowDragon Horizon Monitor** is made by ShadowDragon. **SurfaceDiff** is made by SurfaceDiff. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is ShadowDragon Horizon Monitor a good alternative to SurfaceDiff?

In part. ShadowDragon Horizon Monitor and SurfaceDiff are not in the same category on CybersecTools. Both cover Alerting. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [ShadowDragon Horizon Monitor vs ExposeLens](https://cybersectools.com/compare/exposelens-vs-shadowdragon-horizon-monitor)
- [ShadowDragon Horizon Monitor vs DeHashed](https://cybersectools.com/compare/dehashed-vs-shadowdragon-horizon-monitor)
- [ShadowDragon Horizon Monitor vs Rav3n Watch](https://cybersectools.com/compare/blackbirdai-rav3n-watch-vs-shadowdragon-horizon-monitor)
- [SurfaceDiff vs ExposeLens](https://cybersectools.com/compare/exposelens-vs-surfacediff)
- [SurfaceDiff vs DeHashed](https://cybersectools.com/compare/dehashed-vs-surfacediff)
- [SurfaceDiff vs Rav3n Watch](https://cybersectools.com/compare/blackbirdai-rav3n-watch-vs-surfacediff)

## Alternatives to each

- [See all ShadowDragon Horizon Monitor alternatives](https://cybersectools.com/alternatives/shadowdragon-horizon-monitor)
- [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff)

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Source: https://cybersectools.com/compare/shadowdragon-horizon-monitor-vs-surfacediff

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

More on ShadowDragon Horizon Monitor and SurfaceDiff: 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