You can add third party services that you depend on to your status page, so that if you're having issues you and your customers can know that it's caused by a third party component and that the issue is out of your control.
Login to your status page at instatus.com/login choose your status page, then go to Components → Third party.
When a third party component is added to your status page, it'll appear without showing the uptime, and whenever a third party component is down it'll be updated on your status page without affecting your general status and your uptime.