# DNSAudit.io vs Email Security Test by ImmuniWeb: side-by-side comparison (2026)

[DNSAudit.io](https://cybersectools.com/tools/dnsauditio) is a free [security scanning](https://cybersectools.com/categories/security-scanning) solution by [DNSAudit.io](https://cybersectools.com/companies/dnsauditio). [Email Security Test by ImmuniWeb](https://cybersectools.com/tools/email-security-test-by-immuniweb) is a free [security scanning](https://cybersectools.com/categories/security-scanning) solution by [ImmuniWeb](https://cybersectools.com/companies/immuniweb). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | DNSAudit.io | Email Security Test by ImmuniWeb |
|---|---|---|
| Pricing model | Free | Free |
| Category | Security Scanning | Security Scanning |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup |
| Company | DNSAudit.io | ImmuniWeb |
| Headquarters | – | – |

### Use cases and capabilities

| | DNSAudit.io | Email Security Test by ImmuniWeb |
|---|---|---|
| DNS Security | Yes | – |
| Misconfiguration | Yes | – |
| DMARC | Yes | – |
| SPF | Yes | Yes |
| DKIM | Yes | Yes |
| Security Scanning | Yes | Yes |
| Reconnaissance | Yes | – |
| DNS Rebinding | Yes | – |

### Core features

**DNSAudit.io**

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

**Email Security Test by ImmuniWeb**

10 features 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.

- [DNSAudit.io](https://cybersectools.com/tools/dnsauditio) fits if you are a small business or a mid-market company or an enterprise.

## DNSAudit.io vs Email Security Test by ImmuniWeb FAQ

Common questions when comparing DNSAudit.io vs Email Security Test by ImmuniWeb for security scanning.

### What is the difference between DNSAudit.io and Email Security Test by ImmuniWeb?

**DNSAudit.io**: Free DNS security scanner that checks domains for misconfigs and exposure. Built by DNSAudit.io.

**Email Security Test by ImmuniWeb**: A free online tool that tests email server security by evaluating server configurations. Built by ImmuniWeb.

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

### Who makes DNSAudit.io and Email Security Test by ImmuniWeb?

**DNSAudit.io** is made by DNSAudit.io. **Email Security Test by ImmuniWeb** is made by ImmuniWeb. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is DNSAudit.io a good alternative to Email Security Test by ImmuniWeb?

Often, yes. DNSAudit.io and Email Security Test by ImmuniWeb are both Security Scanning products, and both cover Security Scanning, DKIM, SPF. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [DNSAudit.io vs Domain Verity](https://cybersectools.com/compare/dnsauditio-vs-domain-verity)
- [DNSAudit.io vs RoboShadow OWASP ZAP Vulnerability Scanner](https://cybersectools.com/compare/dnsauditio-vs-roboshadow-owasp-zap-vulnerability-scanner)
- [DNSAudit.io vs Sucuri Website Malware Scanner](https://cybersectools.com/compare/dnsauditio-vs-sucuri-website-malware-scanner)
- [Email Security Test by ImmuniWeb vs Domain Verity](https://cybersectools.com/compare/domain-verity-vs-email-security-test-by-immuniweb)
- [Email Security Test by ImmuniWeb vs RoboShadow OWASP ZAP Vulnerability Scanner](https://cybersectools.com/compare/email-security-test-by-immuniweb-vs-roboshadow-owasp-zap-vulnerability-scanner)
- [Email Security Test by ImmuniWeb vs Sucuri Website Malware Scanner](https://cybersectools.com/compare/email-security-test-by-immuniweb-vs-sucuri-website-malware-scanner)

## Alternatives to each

- [See all DNSAudit.io alternatives](https://cybersectools.com/alternatives/dnsauditio)
- [See all Email Security Test by ImmuniWeb alternatives](https://cybersectools.com/alternatives/email-security-test-by-immuniweb)

---

Source: https://cybersectools.com/compare/dnsauditio-vs-email-security-test-by-immuniweb

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

More on DNSAudit.io and Email Security Test by ImmuniWeb: 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