SiteScope Monitor reported 72 errors.
All visitors to sites hosted on Acquia’s Site Factory platform were unable to view web pages from approximately 8:30 a.m. to 9:45 a.m.
Sites went offline due to a power outage in the aws-east-1 data center.
The Web Applications & Services team worked with Acquia support to identify the cause of the problem. The official Acquia status log is here: https://status.acquia.com/incidents/3qxpgvs7wl96
This was a vendor outage.