SSL Certificate Check
The SSL certificate check validates whether your website has a valid, properly configured SSL certificate that enables secure HTTPS connections.
What this check validates
- ✅ Certificate exists - SSL certificate is installed and active
- ✅ Valid and trusted - Certificate is issued by a recognized authority
- ✅ Not expired - Certificate is within its validity period
- ✅ Correct domain - Certificate matches your website domain
- ✅ Proper chain - Complete certificate chain is configured
Why SSL Certificates matter
- Data Encryption: Protects sensitive information during transmission
- User Trust: Shows green lock icon and "Secure" status in browsers
- SEO Benefits: Required for HTTPS, which is a Google ranking factor
- Compliance: Necessary for payment processing and data protection laws
How SSL Certificates work
SSL certificates create an encrypted connection between browsers and your server:
Browser Request → SSL Handshake → Encrypted Connection → Secure Data Transfer
Certificate information
A valid SSL certificate includes:
Subject: CN=yoursite.com
Issuer: Let's Encrypt Authority X3
Valid From: 2024-01-01
Valid To: 2024-04-01
Serial Number: 03:4F:6B:...
Common Issues
- Missing Certificate: No SSL certificate installed
- Expired Certificate: Certificate has passed its expiration date
- Wrong Domain: Certificate issued for different domain name
- Self-Signed: Using untrusted self-signed certificate
- Incomplete Chain: Missing intermediate certificates
- Mixed Content: HTTPS page loading HTTP resources