Testssl.sh is an open-source tool for checking the security of TLS/SSL encryption on your servers, helping you find vulnerabilities and configuration issues.
Scan your server's SSL/TLS security for free
Testssl.sh lets you easily test the security of your server's SSL and TLS encryption. With this open-source tool, you can check for vulnerabilities, outdated protocols, and misconfigurations to help keep your site safe from threats.
You just need access to a command line—no installation or registration required. Whether you're a system admin, developer, or website owner, testssl.sh gives you detailed scan results and clear recommendations so you can improve your server's security.
The project is actively maintained on GitHub, making it easy to find documentation, updates, and support. It's a practical tool for anyone looking to boost their site's SSL/TLS protection.
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