SSL Checker

Inspect the TLS certificate served on port 443. Review its issuer, validity dates and the server's verification result.

Use the certificate report after installation or renewal to see what the public endpoint serves.

  • 100% free
  • No registration
  • Uses a server
  • Modern browser
  1. 1Enter details
  2. 2Adjust options
  3. 3View result

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About SSL Checker

Use the certificate report after installation or renewal to see what the public endpoint serves.

Certificate dates

See valid-from and expiry dates when returned.

Verification result

The server checks trust, hostname and validity dates.

How to use SSL Checker

  1. 1

    Enter the hostname

    Use a public hostname.

  2. 2

    Run the check

    The server connects on port 443.

  3. 3

    Inspect validity

    Compare the issuer, dates and verification result with the expected certificate.

Formats and practical limits

Public hostname → TLS certificate details

  • Only the probed port 443 endpoint is inspected.
  • The snapshot does not audit all settings or clients.

Practical example

After renewing example.com, confirm the reported expiry matches the certificate you expected.

Further reading

Frequently Asked Questions

1 answers
Does a valid result certify the whole site?

It describes the certificate seen by this probe. Other site settings are outside its scope.