SSL Server Test
Deep TLS/SSL configuration analysis with a letter-grade rating — the gold standard for HTTPS security testing.
What SSL Server Test does
The SSL Server Test is a free online service that performs a deep analysis of the configuration of any SSL web server on the public Internet. By entering a hostname, users receive a comprehensive report with a letter-grade rating that assesses the overall strength of their HTTPS encryption setup. The results detail supported protocols, cipher suites, and certificate validity against current industry best practices, revealing potential vulnerabilities and offering guidance for improving server security. What distinguishes this particular site's version is its integration with Qualys's extensive cryptographic expertise and the depth of its technical reporting. The interface presents results in a structured format that breaks down complex TLS configurations into understandable sections. While the service is straightforward—requiring only a hostname to begin—it provides granular data on protocol support and cipher strength that goes beyond basic SSL checkers, making the technical findings accessible to both security professionals and web developers seeking to validate their HTTPS implementation.
How to use the SSL Labs SSL Server Test
- 1
Enter your website hostname into the Hostname field
- 2
Click the 'Submit' button to begin the analysis
- 3
Wait for the test to complete, which typically takes a few minutes
- 4
Review the letter-grade rating and detailed breakdown of protocol and cipher configurations
- 5
Use the results to identify vulnerabilities and configure your server for stronger encryption
Best for
Security professionals, web developers, and system administrators who need to validate the robustness of their HTTPS implementation and identify potential vulnerabilities in their server's TLS/SSL configuration.
Limitations
- Results are estimates based on a single test point in time
- No automatic server configuration fixes or recommendations beyond the grade
- Test results may vary based on server location and current network conditions
SSL Server Test FAQ
- How long does the SSL Server Test take to complete?
- The test typically takes a few minutes to complete as it performs extensive cryptographic checks on the specified hostname's TLS configuration.
- Can I test a server behind a firewall or on a private network?
- No, the SSL Server Test only analyzes servers that are publicly accessible on the Internet, as it needs to connect to the specified hostname to perform its analysis.
- What does the letter grade mean in the SSL Server Test results?
- The letter grade provides a summary assessment of the server's TLS configuration strength, with A+ being the highest rating and F indicating significant security vulnerabilities or misconfigurations.
- Does the SSL Server Test store my test results or domain information?
- According to the service's privacy policy, the domain names and test results submitted are not stored or used for any purpose other than providing the service.
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