# Red Sift Radar vs SurfaceDiff: side-by-side comparison (2026)

[Red Sift Radar](https://cybersectools.com/tools/red-sift-red-sift-radar) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Red Sift](https://cybersectools.com/companies/red-sift). [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 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

| | Red Sift Radar | SurfaceDiff |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | Red Sift | SurfaceDiff |
| Headquarters | – | – |

### Use cases and capabilities

| | Red Sift Radar | SurfaceDiff |
|---|---|---|
| DNS Security | – | Yes |
| Port Scanning | – | Yes |
| TLS | – | Yes |
| Subdomain Enumeration | – | Yes |
| Network Scanning | – | Yes |
| Security Scanning | – | Yes |
| Alerting | – | Yes |
| Reconnaissance | – | Yes |
| Visibility | – | Yes |
| Web Security | – | Yes |

### Core features

**Red Sift Radar**

6 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.

## Red Sift Radar vs SurfaceDiff FAQ

Common questions when comparing Red Sift Radar vs SurfaceDiff for external attack surface management.

### What is the difference between Red Sift Radar and SurfaceDiff?

**Red Sift Radar**: LLM-powered security platform for finding and fixing security gaps. Built by Red Sift.

**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 Red Sift Radar and SurfaceDiff?

**Red Sift Radar** is made by Red Sift. **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 Red Sift Radar a good alternative to SurfaceDiff?

Often, yes. Red Sift Radar and SurfaceDiff are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Red Sift Radar vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-red-sift-red-sift-radar)
- [Red Sift Radar vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-red-sift-red-sift-radar)
- [Red Sift Radar vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/red-sift-red-sift-radar-vs-trickest-asm-attack-surface-management)
- [SurfaceDiff vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-surfacediff)
- [SurfaceDiff vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff)
- [SurfaceDiff vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/surfacediff-vs-trickest-asm-attack-surface-management)

## Alternatives to each

- [See all Red Sift Radar alternatives](https://cybersectools.com/alternatives/red-sift-red-sift-radar)
- [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff)

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Source: https://cybersectools.com/compare/red-sift-red-sift-radar-vs-surfacediff

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

More on Red Sift Radar 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