# ctlogs.dev vs Findomain: 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). [Findomain](https://cybersectools.com/tools/findomain) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. 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

| | ctlogs.dev | Findomain |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | Verified | No |
| Deployment type | Cloud | On-Premises |
| Company size fit | Startup | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 3,561 |
| Last commit | – | Sep 2025 |
| Company | Apps34 | – |
| Headquarters | – | – |

### Use cases and capabilities

| | ctlogs.dev | Findomain |
|---|---|---|
| Reconnaissance | Yes | Yes |
| OSINT | Yes | Yes |
| SSL | Yes | – |
| TLS | Yes | – |
| REST API | Yes | – |
| Cyber Threat Intelligence | Yes | – |
| DNS Security | Yes | – |
| Attack Detection | Yes | – |
| Subdomain Enumeration | Yes | Yes |
| Port Scanning | – | Yes |
| Network Reconnaissance | – | 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

**Findomain**

No features listed.

### Integrations

**ctlogs.dev**

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

**Findomain**

No integrations listed.

## 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 want a cloud product.
- [Findomain](https://cybersectools.com/tools/findomain) fits if you need to run it on your own servers, you are a small business or a mid-market company or an enterprise, you need a free product and you want an open-source product.

## ctlogs.dev vs Findomain FAQ

Common questions when comparing ctlogs.dev vs Findomain for external attack surface management.

### What is the difference between ctlogs.dev and Findomain?

**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.

**Findomain**: A domain reconnaissance tool that automates subdomain discovery, port scanning, and monitoring with support for multiple data sources and notification integrations.

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

### Who makes ctlogs.dev and Findomain?

**ctlogs.dev** is made by Apps34. **Findomain** is open-source with 3,561 GitHub stars. 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 Findomain?

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

## Related comparisons

- [ctlogs.dev vs SurfaceDiff](https://cybersectools.com/compare/ctlogsdev-vs-surfacediff)
- [ctlogs.dev vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ctlogsdev-vs-ddactic-attack-surface-discovery)
- [ctlogs.dev vs MGM Security Partners recon me](https://cybersectools.com/compare/ctlogsdev-vs-mgm-security-partners-recon-me)
- [Findomain vs SurfaceDiff](https://cybersectools.com/compare/findomain-vs-surfacediff)
- [Findomain vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-findomain)
- [Findomain vs MGM Security Partners recon me](https://cybersectools.com/compare/findomain-vs-mgm-security-partners-recon-me)

## Alternatives to each

- [See all ctlogs.dev alternatives](https://cybersectools.com/alternatives/ctlogsdev)
- [See all Findomain alternatives](https://cybersectools.com/alternatives/findomain)

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Source: https://cybersectools.com/compare/ctlogsdev-vs-findomain

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