4G / edge perf monitor
One-tap performance check for any URL · measures TTFB, transfer size, total load, content size · saves history locally · no telemetry · works offline (the app itself, not what you're testing).
ready · enter a URL or tap a preset above
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fallperf · prime 1361 · ◊·κ=1 · MIT · part of AI Native Solutions
history stored in IndexedDB · sovereign · client-only · no data leaves device
history stored in IndexedDB · sovereign · client-only · no data leaves device