Playground users + API users may have seen increased 429 errors from 12:18-12:25am PT. Specifically, about 1/3 of requests were 429 or 500 in this 7 minute period. Playground underwent a Denial of Service attack this night from about 12:05-12:25am PT. While we do have a few layers of DoS protection, it was not entirely adequate in preventing elevated errors; towards the end of the attack our primary service was affected.

We have taken action and will be continuing to improve our protection.