Reverse proxies on the Paris zone are experiencing instabilities. We are investigating.
EDIT 18:04 UTC+2: One of the reverse proxy stopped accepting new connections. It has been put out of the pool for further investigation. Stability should have been resumed since 2 minutes.
EDIT 18:18 UTC+2: Performance is back to normal. We are going to investigate further why this reverse proxy went into this state without being noticed.