TLS Checker Qualys

Free online TLS/SSL security scanner that checks certificates, protocols, and cipher suites with detailed security analysis.

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< 15ms

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100%

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4.9 / 5.0

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About This Tool

This comprehensive TLS Checker tool performs detailed security analysis of any website's TLS/SSL configuration. It checks SSL certificate validity, supported protocols (TLS 1.0-1.3), cipher suites, and provides security grades similar to Qualys SSL Labs. The tool helps identify security vulnerabilities and ensures your website meets modern TLS security standards.

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How to Use

Enter a domain name (e.g., example.com) in the input field\n
Select scan options (protocols, cipher suites, certificate details)\n
Click 'Scan TLS Configuration' to start the analysis\n
View detailed results including certificate information, protocol support, and security recommendations\n
Use the 'Download Report' button to save results as JSON

Frequently Asked Questions

Find Quick Answers

What does this TLS Checker tool analyze?

The tool analyzes SSL/TLS certificates (validity, issuer, expiration), supported protocols (TLS 1.0-1.3), cipher suites, and provides security grades based on configuration strength.

Does this tool require any API keys or subscriptions?

No, this is a completely free tool that performs TLS scanning directly without requiring any API keys, subscriptions, or external services.

How accurate are the security grades?

The security grades are calculated based on industry-standard TLS security practices, considering factors like protocol support, cipher strength, and certificate configuration.

Can I check HTTPS websites only?

Yes, the tool requires HTTPS-enabled websites as it analyzes TLS/SSL configurations. HTTP-only websites will return connection errors.

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