Facebook Certificate Transparency Monitoring is described as 'Certificate Transparency is an open framework to log, audit and monitor all publicly-trusted TLS certificates on the Internet. This tool lets you search for certificates issued for a given domain. Subscribe to email updates to be alerted when new certificates are issued' and is an website. There are four alternatives to Facebook Certificate Transparency Monitoring, not only websites but also apps for Windows, Linux, SaaS and Mac. The best Facebook Certificate Transparency Monitoring alternative is DigiCert Certificate Inspector, which is free. Other great sites and apps similar to Facebook Certificate Transparency Monitoring are KEYCHEST, NFQES and GlobalSign Certificate Inventory Tool.