This page listens for new certificates added to Certificate Transparency Logs and displays them in real-time. This is a great way to see how many certificates are being issued and by whom. The data is sourced from the known logs and is updated every 5 seconds.
Certificate Transparency is a system for publicly logging SSL/TLS certificates. It is designed to detect when certificates are issued that shouldn't be, such as certificates issued by a rogue CA. It also helps to detect when a certificate is issued for a domain that the owner didn't request.