What this tool can and cannot do
Measured with HTTPS requests to our server (browsers cannot send raw UDP or ICMP). Real-time apps like calls use UDP, so their jitter may differ slightly, but trends are comparable.
Data sources: IPandNet test server
Understanding the results
Jitter = average absolute difference between consecutive latency samples. Under 5 ms is excellent, 5–15 ms good, 15–30 ms may cause occasional call glitches, above 30 ms is poor.
Troubleshooting
- Use a wired connection, stop large uploads/downloads on other devices, and enable QoS/SQM on your router if available.
Frequently asked questions
Is jitter more important than speed?
For calls and games, yes. Real-time applications need consistent timing; they only use a few Mbps of bandwidth.