The Catalog subsystem pairs real-time asset delivery with client-side performance observability. By combining browser-native network probes, low-latency background sampling, and live stream telemetry overlays, this page evaluates edge responsiveness across all 40 catalog assets simultaneously.
Uses standard browser PerformanceObserver APIs to capture exact Time-To-First-Byte (TTFB) and HTTP transfer durations as each thumbnail image loads.
Opening the slide-out telemetry drawer triggers zero-payload HTTP HEAD probes every 1.5s, updating a color-coded sparkline graph mapped by latency.
Subscribes to live NATS telemetry channels via WebSocket transport to deliver edge cache hit percentages, dynamic bitrate updates, and ingest throughput metrics.
Selecting any catalog item slides out a high-density telemetry panel showing active stream protocol (HLS / NATS), video resolution, and synchronized preview playback.