# CyberChecker vs Email Security Test by ImmuniWeb: side-by-side comparison (2026)

[CyberChecker](https://cybersectools.com/tools/cyberchecker) is a commercial [security scanning](https://cybersectools.com/categories/security-scanning) solution by [CyberChecker](https://cybersectools.com/companies/cyberchecker). [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

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

### Use cases and capabilities

| | CyberChecker | Email Security Test by ImmuniWeb |
|---|---|---|
| Security Scanning | Yes | Yes |
| SSL | Yes | – |
| Configuration Management | Yes | – |
| XSS | Yes | – |
| SQL Injection | Yes | – |
| DKIM | – | Yes |
| SPF | – | Yes |

### Core features

**CyberChecker**

No features listed.

**Email Security Test by ImmuniWeb**

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

### Integrations

**CyberChecker**

5 integrations listed. Sign in on the page to see them.

**Email Security Test by ImmuniWeb**

No integrations listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [CyberChecker](https://cybersectools.com/tools/cyberchecker) fits if you are a small business or a mid-market company.
- [Email Security Test by ImmuniWeb](https://cybersectools.com/tools/email-security-test-by-immuniweb) fits if you need a free product.

## CyberChecker vs Email Security Test by ImmuniWeb FAQ

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

### What is the difference between CyberChecker and Email Security Test by ImmuniWeb?

**CyberChecker**: Automated web vulnerability scanner with 60+ security checks. Built by CyberChecker.

**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 CyberChecker and Email Security Test by ImmuniWeb?

**CyberChecker** is made by CyberChecker. **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 CyberChecker a good alternative to Email Security Test by ImmuniWeb?

Often, yes. CyberChecker and Email Security Test by ImmuniWeb are both Security Scanning products, and both cover Security Scanning. Key differences: CyberChecker is Commercial while Email Security Test by ImmuniWeb is Free. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [CyberChecker vs Domain Verity](https://cybersectools.com/compare/cyberchecker-vs-domain-verity)
- [CyberChecker vs RoboShadow OWASP ZAP Vulnerability Scanner](https://cybersectools.com/compare/cyberchecker-vs-roboshadow-owasp-zap-vulnerability-scanner)
- [CyberChecker vs Sucuri Website Malware Scanner](https://cybersectools.com/compare/cyberchecker-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 CyberChecker alternatives](https://cybersectools.com/alternatives/cyberchecker)
- [See all Email Security Test by ImmuniWeb alternatives](https://cybersectools.com/alternatives/email-security-test-by-immuniweb)

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Source: https://cybersectools.com/compare/cyberchecker-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/cyberchecker.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on CyberChecker 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