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SSL/TLS Checker

Check your SSL/TLS certificate for expiry, chain issues, and deprecated protocols.

What is SSL/TLS?

SSL/TLS (Secure Sockets Layer / Transport Layer Security) encrypts the connection between a user's browser and your web server. This protects sensitive data like passwords, credit card numbers, and personal information from being intercepted in transit.

A valid, correctly configured TLS certificate is essential for any website. Expired certificates cause browser warnings that drive visitors away, while deprecated protocols like TLS 1.0 and 1.1 leave your site vulnerable to known attacks.

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