Professional SSL Testing Tools

Expert-recommended SSL/TLS testing tools for every use case

Industry Standards

Free to Use

Expert Verified

What do you need to test?

I need a compliance report

→ Qualys SSL Labs

→ ImmuniWeb SSL Test

I need to test quickly

→ SSL Shopper

→ CDN77 TLS Checker

I need to test internal servers

→ testssl.sh

I need continuous monitoring

→ Hardenize

Comprehensive SSL Testing

Industry-standard tools for detailed SSL/TLS analysis and compliance

Qualys SSL Labs

Industry standard SSL/TLS tester with detailed grading (A-F)

2-5 minutes

KEY STRENGTHS:

Most comprehensive testingCertificate chain analysisBrowser simulationVulnerability detection

Best for: Industry-standard compliance checks

Launch Qualys SSL Labs

testssl.sh

Most comprehensive CLI tool for private server testing

3-10 minutes

KEY STRENGTHS:

Tests 370+ ciphersChecks 30+ vulnerabilitiesComplete privacyScriptable

Best for: DevOps teams and security professionals

Launch testssl.sh

Quick SSL Checks

Fast tools for basic certificate validation and quick security checks

SSL Shopper

Fast basic SSL certificate validation

5-10 seconds

KEY STRENGTHS:

Very fast resultsSimple interfaceCertificate decoderNo registration

Best for: Quick certificate checks

Launch SSL Shopper

CDN77 TLS Checker

Modern, fast SSL/TLS checker with clean results

10-20 seconds

KEY STRENGTHS:

Fast resultsClean interfaceProtocol supportNo ads

Best for: Quick modern browser compatibility

Launch CDN77 TLS Checker

Compliance & Enterprise Testing

Tools focused on regulatory compliance and enterprise security needs

ImmuniWeb SSL Test

Compliance-focused testing (PCI DSS, HIPAA, GDPR)

30-60 seconds

KEY STRENGTHS:

PCI DSS compliance checkGDPR/HIPAA complianceDark web monitoringMobile SSL testing

Best for: Compliance and regulatory requirements

Launch ImmuniWeb SSL Test

Hardenize

Enterprise security assessment with monitoring

2-5 minutes

KEY STRENGTHS:

Full domain securityDNS/Email securityContinuous monitoringHistorical data

Best for: Enterprise security teams

Launch Hardenize

Specialized Testing Tools

Tools for specific security aspects and specialized testing needs

Mozilla Observatory

Web security headers and best practices

30-60 seconds

KEY STRENGTHS:

Security headers focusCSP analyzerEducational resourcesMozilla guidelines

Best for: Web developers and security headers

Launch Mozilla Observatory

CryptCheck

Cryptographic strength analysis with privacy focus

1-2 minutes

KEY STRENGTHS:

Strong crypto focusMultiple protocolsNo trackingSSH testing

Best for: Privacy-conscious cryptographic analysis

Launch CryptCheck

Expert Recommendations

For Comprehensive Testing

Combine Qualys SSL Labs for industry-standard compliance with testssl.sh for detailed vulnerability detection. This provides the most thorough security assessment.

Start with SSL Labs →Then run testssl.sh →

Testing Best Practices

•Test from multiple geographic locations for CDN-backed sites
•Run tests during low-traffic periods to avoid impacting performance
•Document your results and track improvements over time
•Test both www and non-www versions of your domain

Testing Frequency Guidelines

Monthly: Quick checks with SSL Shopper or CDN77

Quarterly: Full compliance scan with ImmuniWeb or SSL Labs

After Changes: Always test after certificate renewal or server configuration changes

Continuous: Consider Hardenize for enterprise monitoring

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