# Puredns

Puredns is an External Attack Surface Management product. It runs on-premises. Pricing is free.

A fast domain resolver and subdomain bruteforcing tool

Checked October 2026.

## What is Puredns?

Puredns is a fast domain resolver and subdomain bruteforcing tool that can accurately filter out wildcard subdomains and DNS poisoned entries.

It's a powerful tool for security researchers and penetration testers to quickly identify potential vulnerabilities in DNS infrastructure.

Tags: Security Research

## Quick facts

- Category: [Exposure & Vulnerability Management](https://cybersectools.com/categories/exposure-vulnerability-management) · [External Attack Surface Management](https://cybersectools.com/categories/external-asm)
- Deployment: On-Premises
- Company size fit: Startup, SMB, Mid-Market, Enterprise
- Pricing model: Free
- GitHub stars: 1,982
- Website: github.com

## Where it ranks

Puredns is not a pick on the current [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions).

## Puredns FAQ

### What is Puredns?

Puredns is a product in the External Attack Surface Management category. It covers Security Research.

### What is the pricing for Puredns?

Puredns is free. Download and setup instructions are at https://github.com/d3mondev/puredns/.

### What are alternatives to Puredns?

Alternatives to Puredns listed on CybersecTools:

1. [ctlogs.dev](https://cybersectools.com/tools/ctlogsdev) - Fast Certificate Transparency search and JSON API for subdomain reconnaissance. (Commercial)
2. [Assetnote Exposure Engine](https://cybersectools.com/tools/assetnote-exposure-engine) - Continuous exposure detection & verification engine for attack surface mgmt. (Commercial)
3. [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management) - Cloud platform for continuous visibility & mgmt of external attack surfaces (Commercial)
4. [StrikeOne Attack Surfa](https://cybersectools.com/tools/strikeone-attack-surfa) - AI-powered attack surface management platform for cybersecurity monitoring (Commercial)
5. [Hadrian Agentic AI](https://cybersectools.com/tools/hadrian-agentic-ai) - AI-powered platform for continuous attack surface discovery and pentesting (Commercial)

Compare all Puredns alternatives at [https://cybersectools.com/alternatives/puredns](https://cybersectools.com/alternatives/puredns)

### What deployment and organization size does Puredns fit?

Puredns is available as on-premises software. It is listed for startups, small businesses, mid-market companies and enterprises. It is free.

## Compare Puredns with similar solutions

- [Puredns vs ctlogs.dev](https://cybersectools.com/compare/ctlogsdev-vs-puredns)
- [Puredns vs Assetnote Exposure Engine](https://cybersectools.com/compare/assetnote-exposure-engine-vs-puredns)
- [Puredns vs Outpost24 External Attack Surface Management](https://cybersectools.com/compare/outpost24-external-attack-surface-management-vs-puredns)

All alternatives to Puredns: [/alternatives/puredns](https://cybersectools.com/alternatives/puredns)

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Source: https://cybersectools.com/tools/puredns

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More on Puredns: 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=product-md