# ctlogs.dev vs Synack Attack Surface Discovery: 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). [Synack Attack Surface Discovery](https://cybersectools.com/tools/synack-attack-surface-discovery) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Synack](https://cybersectools.com/companies/synack). 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 | Synack Attack Surface Discovery |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | Verified | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup | Mid-Market, Enterprise |
| Company | Apps34 | Synack |
| Headquarters | – | – |

### Use cases and capabilities

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

**Synack Attack Surface Discovery**

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

### Integrations

**ctlogs.dev**

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

**Synack Attack Surface Discovery**

5 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.
- [Synack Attack Surface Discovery](https://cybersectools.com/tools/synack-attack-surface-discovery) fits if you are a mid-market company or an enterprise.

## ctlogs.dev vs Synack Attack Surface Discovery FAQ

Common questions when comparing ctlogs.dev vs Synack Attack Surface Discovery for external attack surface management.

### What is the difference between ctlogs.dev and Synack Attack Surface Discovery?

**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.

**Synack Attack Surface Discovery**: External attack surface mgmt with asset discovery and on-demand pentesting. Built by Synack.

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

### Who makes ctlogs.dev and Synack Attack Surface Discovery?

**ctlogs.dev** is made by Apps34. **Synack Attack Surface Discovery** is made by Synack. 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 Synack Attack Surface Discovery?

Often, yes. ctlogs.dev and Synack Attack Surface Discovery 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)
- [Synack Attack Surface Discovery vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-synack-attack-surface-discovery)
- [Synack Attack Surface Discovery vs SurfaceDiff](https://cybersectools.com/compare/surfacediff-vs-synack-attack-surface-discovery)
- [Synack Attack Surface Discovery vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-synack-attack-surface-discovery)

## Alternatives to each

- [See all ctlogs.dev alternatives](https://cybersectools.com/alternatives/ctlogsdev)
- [See all Synack Attack Surface Discovery alternatives](https://cybersectools.com/alternatives/synack-attack-surface-discovery)

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Source: https://cybersectools.com/compare/ctlogsdev-vs-synack-attack-surface-discovery

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 Synack Attack Surface Discovery: 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