See Who’s Issued SSL/TLS Certificates to Your Domain NameCertificate Transparency (CT)
Searching gives organizations an opportunity to review SSL/TLS certificates that have been issued in their name. It helps to prevent interception by impersonators and identify the issuance of SSL/TLS certificates by rogue CAs. Read more about the benefits of Certificate Transparency here
Entrust Datacard supports this practice by recording all EV SSL/TLS certificates that we issue to the CT logs. This practices promotes transparency and an open way for domain owners to audit and monitor certificates that have been issued in their name.
Certificate Transparency Search Tool