# DNS Assistant vs Microsoft Defender EASM: side-by-side comparison (2026) [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). [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Microsoft](https://cybersectools.com/companies/microsoft). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Microsoft Defender EASM](https://cybersectools.com/tools/microsoft-defender-external-attack-surface-management) Best for: Microsoft shops adding external asset discovery It belongs here if you already pay for Microsoft security, because discovered assets can move into Defender for Cloud and Copilot in Azure turns plain questions into inventory searches. It fits companies from small to enterprise. Its features center on discovery and flagging, so ask whether you also need active testing to prove which exposures are real. From [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). 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 | | DNS Assistant | Microsoft Defender EASM | |---|---|---| | Pricing model | Commercial | Commercial | | Category | External Attack Surface Management | External Attack Surface Management | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | DNS Assistant | Microsoft | | Headquarters | – | – | ### Use cases and capabilities | | DNS Assistant | Microsoft Defender EASM | |---|---|---| | DNS Security | Yes | – | | Alerting | Yes | – | | RBAC | Yes | – | | Multi Tenancy | Yes | – | | REST API | Yes | – | | MFA | Yes | – | | Configuration Management | Yes | – | | Misconfiguration | Yes | – | ### Core features **DNS Assistant** 10 features listed. Sign in on the page to see them. **Microsoft Defender EASM** 10 features listed. Sign in on the page to see them. ### Integrations **DNS Assistant** 3 integrations listed. Sign in on the page to see them. **Microsoft Defender EASM** 4 integrations listed. Sign in on the page to see them. ## DNS Assistant vs Microsoft Defender EASM FAQ Common questions when comparing DNS Assistant vs Microsoft Defender EASM for external attack surface management. ### What is the difference between DNS Assistant and Microsoft Defender EASM? **DNS Assistant**: DNS posture mgmt platform for real-time DNS & WHOIS change monitoring. Built by DNS Assistant. **Microsoft Defender EASM**: Discovers and monitors external-facing assets and vulnerabilities. Built by Microsoft. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes DNS Assistant and Microsoft Defender EASM? **DNS Assistant** is made by DNS Assistant founded in 2025-01-01T00:00:00.000Z. **Microsoft Defender EASM** is made by Microsoft. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is DNS Assistant a good alternative to Microsoft Defender EASM? Often, yes. DNS Assistant and Microsoft Defender EASM are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [DNS Assistant vs Cyber Exposure Manager](https://cybersectools.com/compare/dns-assistant-vs-galileo-security) - [DNS Assistant vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-dns-assistant) - [DNS Assistant vs Edgescan Attack Surface Management (ASM)](https://cybersectools.com/compare/dns-assistant-vs-edgescan-attack-surface-management-asm) - [Microsoft Defender EASM vs Cyber Exposure Manager](https://cybersectools.com/compare/galileo-security-vs-microsoft-defender-external-attack-surface-management) - [Microsoft Defender EASM vs Detectify Surface Monitoring](https://cybersectools.com/compare/detectify-surface-monitoring-vs-microsoft-defender-external-attack-surface-management) - [Microsoft Defender EASM vs Edgescan Attack Surface Management (ASM)](https://cybersectools.com/compare/edgescan-attack-surface-management-asm-vs-microsoft-defender-external-attack-surface-management) ## Alternatives to each - [See all DNS Assistant alternatives](https://cybersectools.com/alternatives/dns-assistant) - [See all Microsoft Defender EASM alternatives](https://cybersectools.com/alternatives/microsoft-defender-external-attack-surface-management) --- Source: https://cybersectools.com/compare/dns-assistant-vs-microsoft-defender-external-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/dns-assistant.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on DNS Assistant and Microsoft Defender EASM: 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