Resource Timing API records latency even for error responses.
Now we check for timing data regardless of fetch success/failure,
only reporting unreachable if no timing data is available.
- Use Resource Timing API for accurate network latency instead of
performance.now() around fetch (fixes ~600ms measurement error)
- Chart now shows latest sample at right edge, growing left
- Reduce request timeout from 5000ms to 1000ms
- Update interval changed from 250ms to 2000ms (150 history points)
- Add large play/pause toggle button in header
- Show running/paused status indicator
- Pause stops all network requests, resume restarts them
SPA for real-time latency monitoring to 10 internet hosts:
- 250ms update interval with 300s history sparkline graphs
- Color-coded latency display (green <50ms to red >500ms)
- HEAD request timing with no-cors mode for cross-origin support
- Built with Vite + Tailwind CSS v4, all dependencies bundled
- Designed for static bucket deployment
