We are investigating performance issues with the API and console. This issue seems to be caused by our dedicated reverse proxies (which do not affect the performance nor availability of our customers' applications).
While investigating the issue, something broke in one of the reverse proxies which is causing availability issues. We are working on this.
10:25 UTC: The availability issue has been resolved. We are still working on resolving the performance issue.
10:32 UTC: We found the culprit and have implemented a work-around. Performance is back to normal. We are still working on an actual fix.