Latency
What Is Jitter in Internet Speed?
Why jitter affects calls, gaming and live streaming.
Jitter means the delay is not stable from one packet to another.
Low jitter keeps video calls and gaming smooth.
If download speed is good but calls break, check ping and jitter values.
How to use this information
Run SpeedFiber.net, compare download, upload, ping and jitter, then test again near your router. This gives a clearer picture of whether the issue is your Wi-Fi, your device, or the internet line.