Seguridad y SSL
SSL Certificate Chain Incomplete
An incomplete SSL certificate chain occurs when intermediate certificates are not properly installed on the server. While some browsers can fetch missing intermediates, others (especially mobile browsers and API clients) will fail with untrusted certificate errors.
Síntomas
- SSL works in some browsers but fails in others
- Mobile browsers showing security warnings
- API clients failing with certificate verification errors
- SSL testing tools showing chain issues
Causas comunes
- Intermediate certificate not installed on the server
- Wrong order of certificates in the chain file
- Using a self-signed certificate in production
- CA changed their intermediate certificate
Solución paso a paso
- 1
Analyze SSL chain
Check the full certificate chain for missing intermediates.
Usar SSL Certificate Check → - 2
Download correct intermediates
Get the proper intermediate certificates from your CA's documentation.
- 3
Reinstall with full chain
Install the certificate with the complete chain: server cert → intermediate(s) → root.
- 4
Verify the fix
Re-test SSL to confirm the full chain is served correctly.
Usar SSL Certificate Check →
Herramientas de diagnóstico recomendadas
Monitor SSL Health
Continuously verify SSL certificate chain integrity.