System health · refreshes every 30s
All endpoints live-tested from your browser.
No proxy, no synthetic monitor — this page makes the same HTTP calls your dashboard makes. If you see green here, the console is healthy for you specifically.
Endpoint
HTTP
Latency
Data Age
Levels · SPX
/api/backend/levels/SPX
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Levels · NDX
/api/backend/levels/NDX
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Levels · QQQ
/api/backend/levels/QQQ
…
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Levels · SPY
/api/backend/levels/SPY
…
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Levels · GLD
/api/backend/levels/GLD
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Session timer
/api/backend/pulse/session
…
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Hero · SPX (combined)
/api/backend/hero/SPX?interval=1m&period=1d
…
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Backend
localhost:8888
FastAPI · Python 3.14
Frontend
localhost:3333
Next.js 15 · React 19
Data source
cdn.cboe.com
delayed quotes · ~15min