home-assistant.github.io/source/_components/sensor.cert_expiry.markdown

layout	title	description	date	sidebar	comments	sharing	footer	logo	ha_category	ha_release
page	Certificate Expiry	Track HTTPS (SSL) certificate expiry as HomeAssistant sensor.	2017-04-24 14:14	true	false	true	true	home-assistant.png	Sensor	0.43

This sensor fetches information from a configured URL and displays the certificate expiry (in days). The host and port must lead to a working SSL website.

To add the Certificate Expiry sensor to your installation, add these options to configuration.yaml file:

# Example configuration.yaml entry
sensor:
  - platform: cert_expiry
    host: home-assistant.io

Configuration variables:

• host (Required): The host FQDN (or IP) to retrieve certificate from
• port array (Optional): Port number (default 443).

Make sure that the URL exactly matches your endpoint or resource.