What is SSL Certificate Checker?
The SSL Certificate Checker queries any public website URL to retrieve and analyze its SSL/TLS certificate. It checks validity dates, certificate authority (issuer), signature algorithm, SSL protocol compatibility, and common configurations. An expired or misconfigured SSL certificate will cause browsers to block access to your site, destroying visitor trust.
How to Use SSL Certificate Checker
- Enter the domain name (e.g., `arbre.com.pk` or `google.com`) in the domain input field.
- Click 'Fetch Certificate Info' to run the lookup process.
- Review the parsed certificate timeline showing issue date, expiration date, and days remaining.
- Inspect issuer details, SAN (Subject Alternative Names), and TLS cipher support alerts.
Common Use Cases
- Webmasters checking when their SSL certificates expire to prevent website downtime.
- SEO analysts ensuring websites meet Google's HTTPS ranking requirements.
- IT administrators auditing server security configurations and checking for deprecated TLS version support.
Pro Tips & Best Practices
- Set up automatic renewals with Let's Encrypt or similar services, and configure external monitoring to alert you at least 14 days before certificate expiration.
- Make sure your server is configured to redirect all HTTP traffic to HTTPS (port 443) using permanent redirects (301) for optimal SEO.