🔒SSL Certificate Checker
Validate SSL certificates, check expiration dates, and verify encryption strength. 100% client-side - your data never leaves your device.
🚀 NIST Compliant • GDPR Ready • Zero Data Collection
✨ Features
❓ Frequently Asked Questions
What is an SSL certificate?
An SSL (Secure Sockets Layer) certificate is a digital certificate that authenticates a website's identity and enables encrypted connections between a web server and a browser.
Why should I check my SSL certificate?
Regular SSL checks help ensure your website remains secure, prevent certificate expiration issues, and maintain visitor trust. Expired certificates can cause browser warnings and security vulnerabilities.
How often should I check my SSL certificate?
It's recommended to check your SSL certificate monthly, especially if it's approaching expiration. Most certificates are valid for 90 days to 1 year.
What does the security grade mean?
The security grade (A+ to F) indicates the overall security configuration of your SSL/TLS implementation, including protocol versions, cipher suites, and known vulnerabilities.