Internet Stability Test
When the runs differ a lot, the connection is not steady. The series runs only while this tab stays open. Packet loss is not measured here.
Internet Stability Test
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How this test works
The test repeats a download and latency check up to 5 times in Full mode, or 3 times in the other modes, with 2 seconds between runs. The total download stays within 300 MB. No upload is sent. It does not monitor in the background, and a hidden tab stops it.
How to read the result
For download speed and idle latency the page shows the lowest, middle and highest value across the runs. Variation is the highest download speed minus the lowest, divided by the median, as a percent. Each run also lists jitter and latency under load.
What is typical
Each series is 3 to 5 runs. The page reports the spread and does not label a line stable or unstable.