# as3nt vs DNS Assistant: side-by-side comparison (2026)

[as3nt](https://cybersectools.com/tools/as3nt) is a free [external attack surface management](https://cybersectools.com/categories/external-asm) solution. [DNS Assistant](https://cybersectools.com/tools/dns-assistant) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [DNS Assistant](https://cybersectools.com/companies/dns-assistant). 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

| | as3nt | DNS Assistant |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | External Attack Surface Management | External Attack Surface Management |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| GitHub stars | 12 | – |
| Last commit | Oct 2022 | – |
| Company | – | DNS Assistant |
| Headquarters | – | – |

### Use cases and capabilities

| | as3nt | DNS Assistant |
|---|---|---|
| Security Research | Yes | – |
| Subdomain Enumeration | Yes | – |
| DNS Security | – | Yes |
| Alerting | – | Yes |
| RBAC | – | Yes |
| Multi Tenancy | – | Yes |
| REST API | – | Yes |
| MFA | – | Yes |
| Configuration Management | – | Yes |
| Misconfiguration | – | Yes |

### Core features

**as3nt**

No features listed.

**DNS Assistant**

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

### Integrations

**as3nt**

No integrations listed.

**DNS Assistant**

3 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.

- [as3nt](https://cybersectools.com/tools/as3nt) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.
- [DNS Assistant](https://cybersectools.com/tools/dns-assistant) fits if you want a cloud product.

## as3nt vs DNS Assistant FAQ

Common questions when comparing as3nt vs DNS Assistant for external attack surface management.

### What is the difference between as3nt and DNS Assistant?

**as3nt**: A tool for enumerating subdomains of a given domain.

**DNS Assistant**: DNS posture mgmt platform for real-time DNS & WHOIS change monitoring, built by DNS Assistant.

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

### Who makes as3nt and DNS Assistant?

**as3nt** is open-source with 12 GitHub stars. **DNS Assistant** is made by DNS Assistant founded in 2025-01-01T00:00:00.000Z. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is as3nt a good alternative to DNS Assistant?

Often, yes. as3nt and DNS Assistant are both External Attack Surface Management products. Key differences: as3nt is Free while DNS Assistant is Commercial, as3nt is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [as3nt vs Detectify Surface Monitoring](https://cybersectools.com/compare/as3nt-vs-detectify-surface-monitoring)
- [as3nt vs SurfaceDiff](https://cybersectools.com/compare/as3nt-vs-surfacediff)
- [as3nt vs Attack Surface Scan](https://cybersectools.com/compare/as3nt-vs-attack-surface-scan)
- [DNS Assistant vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-dns-assistant)
- [DNS Assistant vs SurfaceDiff](https://cybersectools.com/compare/dns-assistant-vs-surfacediff)
- [DNS Assistant vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-dns-assistant)

## Alternatives to each

- [See all as3nt alternatives](https://cybersectools.com/alternatives/as3nt)
- [See all DNS Assistant alternatives](https://cybersectools.com/alternatives/dns-assistant)

---

Source: https://cybersectools.com/compare/as3nt-vs-dns-assistant

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/as3nt.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on as3nt and DNS Assistant: 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