Certificate Transparency Policy Analyzer

By SSLMate

If you get a NET::ERR_CERTIFICATE_TRANSPARENCY_REQUIRED error when visiting your website in Google Chrome, your website's SSL certificate might violate Chrome's Certificate Transparency policy.

Use this tool to check if your website is compliant with Apple and Chrome Certificate Transparency policies. If the tool reports that your website's certificate is non-compliant, contact your certificate authority as soon as possible to get a new, compliant certificate.

Test Your Site

Make Sure Your Site Stays Fixed

Cert Spotter monitors your entire SSL certificate portfolio and alerts you about security and availability problems like non-compliant, unauthorized, or expiring certificates.

History

This tool has helped site owners diagnose the following notable incidents: