Uptime Sync is a website uptime checker with iCloud support. Currently available on Mac, and coming soon to iOS and iPadOS platforms. You can monitor the uptime status of multiple websites with the data synchronized to multiple Mac computers with pending iOS and iPadOS devices support.
The Uptime Sync app takes your privacy extremely seriously.
The Uptime Sync app only stores your locations on your devices and iCloud which you have total control. It does not transmit your log and personal data to other networks except Apple's server, and the website uptime requests that you define.