SSL Certificate Checker
Check SSL/TLS certificate details and validity
Enter a domain name above to check SSL certificate
How to use SSL Certificate Checker
- Enter Domain: Type a domain name (e.g., google.com) without https:// or www. The tool will automatically check the SSL certificate for that domain
- Click Check: Click the "Check" button to initiate the SSL certificate verification process and connect to the domain's SSL port (443)
- Review Results: Examine the certificate details including issuer, validity dates, expiration status, and any security warnings or recommendations
Frequently Asked Questions
Why is SSL certificate validation important?
SSL certificates encrypt data between your browser and the website, protecting sensitive information like passwords and credit card details. They also verify the website's authenticity and build user trust.
What happens if an SSL certificate expires?
When an SSL certificate expires, browsers show security warnings, users may leave the site, search rankings may decrease, and the website becomes vulnerable to man-in-the-middle attacks.
How often should I check SSL certificates?
SSL certificates should be checked regularly, especially before expiration (typically 30-90 days). Most certificates are valid for 1 year, so monitoring every few months ensures you never miss a renewal.