Guides
Understand, renew and troubleshoot your SSL certificates, step by step.
2 guides match “TLS 1.2”.
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Security Reading time: 4 min
SSL/TLS security best practices
Protocols, keys, HSTS headers, redirects and certificate monitoring: the checklist for a solid HTTPS setup.
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Troubleshooting Reading time: 4 min
Troubleshooting the most common SSL errors
Expired certificate, name mismatch, incomplete chain, mixed content: how to identify the cause of the error and fix it.
A certificate to check right now?
The free checker shows its expiry date, issuer and covered domains.