SSL Certificate Checker

ℹ️ About SSL Certificates

SSL/TLS certificates encrypt the connection between a visitor's browser and your server. They also verify your domain identity. Without a valid certificate, browsers show security warnings that drive visitors away.

• Grade A — Valid, trusted, 30+ days remaining
• Grade B — Valid but expires within 30 days
• Grade C — Expiring within 14 days — act immediately
• Grade D — Certificate issues (self-signed, wrong domain, etc.)
• Grade F — Expired certificate

Set up automated certificate renewal with Let's Encrypt and Certbot to avoid expiry surprises. Most hosting control panels including Plesk offer this built-in.