Ping and jitter, explained

What is ping?

Ping is a round trip: your device sends a small request to a server and waits for the reply. The time is shown in milliseconds. It is also commonly called latency. A lower result generally means less delay between an action and its response, which can make online games, calls and remote desktop sessions feel more immediate.

Ping depends on the route between your device and the test server. A nearby server often responds faster than one far away, but routing, congestion, Wi-Fi conditions and the server itself also matter. One ping result is therefore a measurement of one route at one time.

What is jitter?

Jitter describes changes in latency across multiple measurements. If each request takes about the same time, the connection has steady latency. If the delay jumps around, jitter is higher. Real-time audio and video can be disrupted by that variation even when average download speed looks adequate.

SpeedScan makes several small requests, discards the first warm-up reading, reports the median ping and compares consecutive readings to show jitter. Different speed tests can use different endpoints and calculation methods, so compare results from the same test when tracking a change.

When do ping and jitter matter?

• Online gaming: Ping affects how quickly actions reach the game server and return. Jitter can make that delay inconsistent.
• Video and voice calls: Stable timing helps speech and video arrive smoothly. Upload capacity and packet loss can also affect call quality.
• Remote work: Remote desktops, cloud apps and interactive tools can feel sluggish when each action waits on a delayed response.
• Streaming video: A brief delay is usually less noticeable because video can buffer ahead. Sustained download speed is often more important.

What to try when latency is unstable

1. Test over Ethernet or move closer to the router to see whether Wi-Fi is contributing.
2. Pause large downloads, backups or other busy network activity and measure again.
3. Check whether the result changes at different times of day.
4. Compare your normal VPN setup with a test that bypasses it, if that is appropriate for your privacy and network policy.
5. If high or unstable latency persists on a wired connection, keep a record and ask your provider to investigate the route or service.

Google Meet's troubleshooting guidance also recommends observing bandwidth and latency over time and checking whether Ethernet improves call quality. Read its network troubleshooting steps.