This very simple dashboard helps your Organization to monitor your active SSL Certificates in seconds, with crystal clear view of the status of all of them.
Using the latest version of Telegraf should work, more information here
Collector Configuration Details
Just download the latest Telegraf version which includes the X.509 Plugin, create a new file under /etc/telegraf/telegraf.d/ssl.conf and add the next:
[[inputs.x509_cert]] sources = ["https:/YOURURL1:443/", "https://YOURURL2:443/", "YOURURL3:8443/", "tcp://YOURAPPLISTENINGTCP:8086/"] insecure_skip_verify = true
Restart the Telegraf services and enjoy