SSL Certificate Checker

Security

Check SSL certificate validity

The SSL Certificate Checker examines the SSL/TLS certificate of any website to verify its validity, check the expiration date, and display issuer information. SSL certificates are what enable HTTPS connections, encrypting data between a visitor's browser and the web server.

Website owners, developers, and SEO professionals use SSL checks to make sure their certificates are properly installed and not expired. An expired or misconfigured SSL certificate causes browser warnings that scare visitors away and can negatively impact search engine rankings.

Enter a domain name and the tool retrieves the certificate details, showing you whether the connection is secure, when the certificate expires, and who issued it. This gives you a quick health check of any site's HTTPS setup.

How to Use

1. Enter the domain name you want to check (e.g., example.com).
2. Click the check button to retrieve the SSL certificate information.
3. View the certificate status: valid or expired.
4. Check the expiration date to see when the certificate needs renewal.
5. Review the issuer details to confirm the certificate authority.

Features

• SSL/TLS certificate validity check
• Expiration date display
• Certificate issuer information
• Domain name verification
• Quick HTTPS health check
• Works for any publicly accessible domain

Frequently Asked Questions

What is an SSL certificate?

An SSL (Secure Sockets Layer) certificate is a digital certificate that authenticates a website\

Why does SSL matter?

SSL protects data transmitted between visitors and the website from being intercepted. Google also uses HTTPS as a ranking signal, and browsers display warnings on non-HTTPS sites, which can deter visitors.

What happens when an SSL certificate expires?

Browsers will display a security warning when visitors try to access the site, and most users will not proceed past the warning. Search engines may also downgrade the site\