Certificate Expiry

The Certificate Expiry integration fetches the certificate from a configured host and displays its expiration in a timestamp sensor. The sensor checks and updates the certificate information for the configured host every 12 hours.


Adding Certificate Expiry to your Home Assistant instance can be done via the user interface, by taking the following steps:

  • Browse to your Home Assistant instance.

  • In the sidebar click on Configuration.

  • From the configuration menu select: Integrations.

  • In the bottom right, click on the Add Integration button.

  • From the list, search and select “Certificate Expiry”.

  • Follow the instruction on screen to complete the set up.

After completing, the Certificate Expiry integration will be immediately available for use.


The Certificate Expiry entities provide extra attributes to represent the state of the certificate.

Name Description
is_valid If the certificate is able to be validated: True / False.
error A human-readable error description if the certificate is considered invalid, “None” otherwise.