On July 5th, 2023, we received reports that some customers were seeing an error message that the site was down, when the site was up. In addition, some users were unable to load some pages or components. In both cases, refreshing the page would sometimes temporarily resolve the issue. We replaced the impacted server and the issue was resolved.
A server was generating an increased number of error messages. This meant that when attempting to load a page, if the request was handled by the server having issues, customers would see the error message. Requests handled by other servers were not impacted.
We're updating our alerting to catch this type of issue faster and investigating additional measures to prevent this issue from re-occurring.