# SurfaceDiff vs Tanium Certificate Manager: side-by-side comparison (2026)

[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). [Tanium Certificate Manager](https://cybersectools.com/tools/tanium-certificate-manager) is a commercial [certificate lifecycle management](https://cybersectools.com/categories/clm) solution by [Tanium](https://cybersectools.com/companies/tanium). 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

| | SurfaceDiff | Tanium Certificate Manager |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | Certificate Lifecycle Management |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | SurfaceDiff | Tanium |
| Headquarters | – | – |

### Use cases and capabilities

| | SurfaceDiff | Tanium Certificate Manager |
|---|---|---|
| DNS Security | Yes | – |
| Port Scanning | Yes | – |
| TLS | Yes | – |
| Subdomain Enumeration | Yes | – |
| Network Scanning | Yes | – |
| Security Scanning | Yes | – |
| Alerting | Yes | Yes |
| Reconnaissance | Yes | – |
| Visibility | Yes | Yes |
| Web Security | Yes | – |

### Core features

**SurfaceDiff**

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

**Tanium Certificate Manager**

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

### Integrations

**SurfaceDiff**

No integrations listed.

**Tanium Certificate Manager**

10 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.

- [SurfaceDiff](https://cybersectools.com/tools/surfacediff) fits if you want a cloud product and you are a startup.
- [Tanium Certificate Manager](https://cybersectools.com/tools/tanium-certificate-manager) fits if you need both cloud and on-premises options.

## SurfaceDiff vs Tanium Certificate Manager FAQ

Common questions when comparing SurfaceDiff vs Tanium Certificate Manager for external attack surface management.

### What is the difference between SurfaceDiff and Tanium Certificate Manager?

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

**Tanium Certificate Manager**: Digital certificate discovery, monitoring, and expiration management platform. Built by Tanium.

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

### Who makes SurfaceDiff and Tanium Certificate Manager?

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

### Is SurfaceDiff a good alternative to Tanium Certificate Manager?

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

## Related comparisons

- [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)
- [Tanium Certificate Manager vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-tanium-certificate-manager)
- [Tanium Certificate Manager vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-tanium-certificate-manager)
- [Tanium Certificate Manager vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/tanium-certificate-manager-vs-trickest-asm-attack-surface-management)

## Alternatives to each

- [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff)
- [See all Tanium Certificate Manager alternatives](https://cybersectools.com/alternatives/tanium-certificate-manager)

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Source: https://cybersectools.com/compare/surfacediff-vs-tanium-certificate-manager

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

More on SurfaceDiff and Tanium Certificate Manager: 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