SSL Certificate Checker
Verify SSL certificates, expiration dates, and security configuration for any website.
SSL Certificate Information
What is an SSL Certificate?
SSL (Secure Sockets Layer) certificates are digital certificates that authenticate the identity of a website and enable an encrypted connection. They secure sensitive information sent between a web server and a browser.
Why SSL is Important
SSL provides data encryption, authentication, and trust. It keeps sensitive information secure, proves website identity, and signals to visitors that your site is trustworthy.
Types of SSL Certificates
Various types include Domain Validation (DV), Organization Validation (OV), Extended Validation (EV), Wildcard, and Multi-Domain certificates. Each offers different levels of validation and features.
Certificate Validation Levels
DV certificates verify domain ownership only. OV adds organization verification. EV certificates provide the highest level of verification and display the organization name in the browser's address bar.
Certificate Expiration
SSL certificates have limited validity periods (typically 1-2 years). It's crucial to monitor expiration dates and renew certificates before they expire to avoid security warnings.
SSL Best Practices
Use strong protocols (TLS 1.2/1.3), implement HSTS, use secure cipher suites, ensure proper certificate installation, and configure redirects from HTTP to HTTPS.