cert_expiry sensor fetches information from a configured URL and displays the certificate expiry in days.
To add the Certificate Expiry sensor to your installation, add these options to
# Example configuration.yaml entry sensor: - platform: cert_expiry host: home-assistant.io
- host (Required): The host FQDN (or IP) to retrieve certificate from.
port (Optional): The port number where the server is running. Defaults to
- name (Optional): The friendly name for the certificate.
Make sure that the URL exactly matches your endpoint or resource.