SSL Certificate
Checker.
Check SSL certificate validity, expiration dates, issuer information, and security protocols. Ensure your website security is up to date.
SSL Certificate Checker
Check SSL certificate validity, expiration dates, and security information
Enter the full URL including https:// or just the domain name
Certificate Validation
Check if your SSL certificate is properly configured and trusted
Expiration Monitoring
Monitor when your SSL certificate expires to prevent downtime
Security Info
View detailed information about the SSL certificate and protocol
Why Check SSL Certificates
- •Prevent security warnings for visitors
- •Monitor expiration dates to avoid downtime
- •Verify certificate configuration is correct
- •Maintain SEO rankings (HTTPS is a ranking factor)
Best Practices
- •Renew certificates 30 days before expiration
- •Use automated renewal with Let's Encrypt
- •Set up monitoring and expiration alerts
- •Use TLS 1.2 or higher for better security
Understanding SSL/TLS
SSL (Secure Sockets Layer) and its successor TLS (Transport Layer Security) are protocols that encrypt data transmitted between a web browser and a server. They ensure that sensitive information like passwords, credit card numbers, and personal data remain private and secure.
Modern websites use digital certificates to establish trust and enable encrypted connections. These certificates are issued by trusted Certificate Authorities (CAs) and must be renewed periodically to maintain security.