# ctlogs.dev vs FortifyData Attack Surface Management: side-by-side comparison (2026)

[ctlogs.dev](https://cybersectools.com/tools/ctlogsdev) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Apps34](https://cybersectools.com/companies/apps34). [FortifyData Attack Surface Management](https://cybersectools.com/tools/fortifydata-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [FortifyData](https://cybersectools.com/companies/fortifydata). Features, integrations, deployment and the company behind each one, side by side.

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## Side-by-side comparison

| | ctlogs.dev | FortifyData Attack Surface Management |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | Verified | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup | SMB, Mid-Market, Enterprise |
| Company | Apps34 | FortifyData |
| Headquarters | – | – |

### Use cases and capabilities

| | ctlogs.dev | FortifyData Attack Surface Management |
|---|---|---|
| Reconnaissance | Yes | – |
| OSINT | Yes | – |
| SSL | Yes | – |
| TLS | Yes | – |
| REST API | Yes | – |
| Cyber Threat Intelligence | Yes | – |
| DNS Security | Yes | – |
| Attack Detection | Yes | – |
| Subdomain Enumeration | Yes | – |

### Core features

**ctlogs.dev**

- Real-time Certificate Transparency Search
- Automated Subdomain Enumeration
- High-Performance REST JSON API
- Wildcard & Fingerprint Matching
- SSL/TLS Certificate History Tracking
- Attack Surface Mapping
- Historical Log Archiving
- Instant Domain & Issuer Filtering

**FortifyData Attack Surface Management**

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

### Integrations

**ctlogs.dev**

- REST API
- cURL
- Python
- JSON
- Webhooks
- SIEM

**FortifyData Attack Surface Management**

2 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.

- [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev) fits if you are a startup.
- [FortifyData Attack Surface Management](https://cybersectools.com/tools/fortifydata-attack-surface-management) fits if you are a small business or a mid-market company or an enterprise.

## ctlogs.dev vs FortifyData Attack Surface Management FAQ

Common questions when comparing ctlogs.dev vs FortifyData Attack Surface Management for external attack surface management.

### What is the difference between ctlogs.dev and FortifyData Attack Surface Management?

**ctlogs.dev**: Fast Certificate Transparency search and JSON API for subdomain reconnaissance. Built by Apps34. Core capabilities include Real-time Certificate Transparency Search, Automated Subdomain Enumeration, High-Performance REST JSON API.

**FortifyData Attack Surface Management**: ASM platform for discovering, monitoring, and prioritizing external/internal assets. Built by FortifyData.

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

### Who makes ctlogs.dev and FortifyData Attack Surface Management?

**ctlogs.dev** is made by Apps34. **FortifyData Attack Surface Management** is made by FortifyData. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is ctlogs.dev a good alternative to FortifyData Attack Surface Management?

Often, yes. ctlogs.dev and FortifyData Attack Surface Management are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [ctlogs.dev vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ctlogsdev-vs-ddactic-attack-surface-discovery)
- [ctlogs.dev vs SurfaceDiff](https://cybersectools.com/compare/ctlogsdev-vs-surfacediff)
- [ctlogs.dev vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-ctlogsdev)
- [FortifyData Attack Surface Management vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-fortifydata-attack-surface-management)
- [FortifyData Attack Surface Management vs SurfaceDiff](https://cybersectools.com/compare/fortifydata-attack-surface-management-vs-surfacediff)
- [FortifyData Attack Surface Management vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-fortifydata-attack-surface-management)

## Alternatives to each

- [See all ctlogs.dev alternatives](https://cybersectools.com/alternatives/ctlogsdev)
- [See all FortifyData Attack Surface Management alternatives](https://cybersectools.com/alternatives/fortifydata-attack-surface-management)

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Source: https://cybersectools.com/compare/ctlogsdev-vs-fortifydata-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/ctlogsdev.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on ctlogs.dev and FortifyData 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