LUYA CMS got nice remote admin app that's able to gather info from all your CMS instances on various servers so you're able:

• To see all outdated websites.
• To collect info about the Websites themselves and make sure they are configured well.
• To see how many administrators are active.
• To have a list of direct website links.

It works out of the box with all Yii2 based LUYA Websites where admin module is enabled.