jannep is correct, though the links sent were for version 2 of Squared Up. The first article is SCOM based, so will carry between versions. The demo site runs on the latest public release (currently 3.2.4).
For the app uptime dashboard, all that is used is the standard SLA tile, with inline style and a custom label to show the URL. The URL is wrapped within the parameters, so a custom label was used: