What does download speed measure?

Download speed measures how quickly data moves from the internet to your device and usually affects streaming, browsing, app downloads, and cloud access.

What should I do after reading the basics?

After you understand the core metrics, move to the Guides hub or open a problem-specific page for high ping, jitter, packet loss, or slow Wi-Fi troubleshooting.

Help Center

Understand your internet speed test results

LizSpeedTest helps you measure internet speed and diagnose unstable network quality. Use this page as the glossary for the core metrics before moving into deeper troubleshooting guides.

Download speed

Download speed measures how quickly data moves from the internet to your device. Low download speed usually affects streaming, browsing, app downloads, and cloud file access.

Upload speed

Upload speed measures how quickly your device sends data out. It matters for video calls, file uploads, live streaming, cloud backups, and remote work tools.

Ping and latency

Ping is the response time between your device and a server. Lower ping usually feels better in online games, calls, and interactive apps.

Jitter and packet loss

Jitter shows how inconsistent your latency is over time. Packet loss shows that some data never arrives. Both can make a connection feel unstable even when Mbps numbers look acceptable.

Quick troubleshooting checklist

Run multiple tests

Test at different times of day to compare congestion patterns and avoid judging the network from a single result.

Check Wi-Fi signal quality

Move closer to the router, reduce obstacles, and compare results between rooms if your signal is weak or inconsistent.

Pause heavy background traffic

Cloud sync, app updates, downloads, or another person streaming video can distort your test results.

Compare servers and connections

Try another test server or compare Wi-Fi versus mobile data to isolate whether the issue is local or upstream.

Why is my speed test slow?

Slow results can come from weak Wi-Fi, network congestion, ISP throttling, overloaded background apps, or distance from the test server. Repeating tests and checking latency patterns usually helps narrow down the cause.

Where can I download LizSpeedTest?

LizSpeedTest is currently available on Google Play for Android: open the store listing.

Start with these core guides

Once the basic terms make sense, these pages are the next best starting points for the most common real-world problems people need to diagnose.

What is ping?

Review latency basics before troubleshooting delay in games, calls, and browsing.

What is jitter?

Understand unstable latency when the connection feels inconsistent instead of simply slow.

What is packet loss?

See how dropped data affects calls, gaming, buffering, and general stability.

Why is my ping so high?

Move from definitions into a practical latency diagnosis checklist.

How to fix slow Wi-Fi

Use a practical home-network checklist when the problem feels local to your router or room coverage.

Use the Guides hub for deeper troubleshooting

When you already understand the metrics and want a path based on gaming lag, unstable calls, packet loss, or room-by-room Wi-Fi checks, open the full guides hub.