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SSL · Fix guide

SSL certificate check failed

SSL
Secure Sockets Layer
TLS
Transport Layer Security

A trusted HTTPS connection could not be established for the hostname.

The concept

What is an SSL/TLS certificate?

A TLS certificate links a hostname to a cryptographic identity trusted by browsers. A secure connection requires the correct hostname, valid dates and a complete chain to a trusted certificate authority.

Recommended action

What to do next

  1. Confirm the certificate includes the exact hostname.
  2. Install the complete intermediate chain.
  3. Check expiry, DNS routing and SNI configuration.
Confirmation

How to verify the fix

Test in a private browser and with an independent certificate checker.

Interpret carefully

When this result may be wrong

Private certificate authorities, restrictive firewalls and a recently changed DNS address can produce different results.

Ready to check again?

Run a fresh report after DNS caches and platform changes have had time to update.

Check a domain