Each strip is the last 48 hours of recorded probe results, one bar per hour — green is up, red had a failed check, grey means we weren’t recording that hour (history is never backfilled). Platform rows show whether each provider’s API answers from our servers; for official incident detail check the provider’s own status page.
CME Globex session for index futures (Sun 5:00 PM – Fri 4:00 PM CT, with a daily 4:00–5:00 PM CT break).
Live from the same telemetry the copier runs on. 24-hour figures come from a rolling event window and read as a conservative floor. Copy latency = leader fill seen → follower order sent. Speeds are the median (p50) and 95th percentile (p95) — we publish the slow tail on purpose: it’s the number a platform with something to hide leaves out.