Intercom
https://www.intercomstatus.com/
Add the status of Intercom to your own status page, or pick and choose which specific services offered by Intercom that you would like have added. Maintain a unified dashboard representing both your infrastructure status as well as Intercom’s, and many others, status. Let your end-users sign up to get notified anytime GoToMeeting posts a status update or schedules a maintenance.