Live Ping Monitor
Start it before you play on another device, then come back and read the graph for sudden rises in ping. It measures only while the tab stays open.
Live Ping Monitor
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How this test works
The monitor times one request per second to the nearest Cloudflare server, with a 5 second limit per request. The chart keeps the last 5 minutes and a run ends after 30 minutes. Pauses are not counted in the elapsed time. The run ends if the tab is hidden.
How to read the result
The page lists current, lowest, average and highest latency, jitter, lost percent, spikes and the probe count. A spike is any request slower than the limit you set, chosen from 50, 100, 200, 300 or 500 ms, and the default is 200 ms. A request that gets no answer is marked as lost and is not averaged in.
What to do if it is bad
The monitor can save its samples as a CSV file on your device. The file has seconds since start, latency in milliseconds and a lost flag for every sample.