Common SSL Certificate Issues and Solutions
Quick remedies for common SSL errors administrators face in production.
Frequent Problems
- Name mismatch: Certificate CN/SAN does not match host
- Incomplete chain: Missing intermediate certificates
- Mixed content: HTTP assets on HTTPS pages
- Expired certs: Missed renewals
How to Fix
- Reissue with correct SANs
- Install full chain bundle
- Rewrite or proxy HTTP assets to HTTPS
- Automate renewals and add monitoring