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.
Help Center
LizSpeedTest helps you measure internet speed and diagnose unstable network quality. Use this page to understand what each metric means and what to try next.
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 measures how quickly your device sends data out. It matters for video calls, file uploads, live streaming, cloud backups, and remote work tools.
Ping is the response time between your device and a server. Lower ping usually feels better in online games, calls, and interactive apps.
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.
Test at different times of day to compare congestion patterns and avoid judging the network from a single result.
Move closer to the router, reduce obstacles, and compare results between rooms if your signal is weak or inconsistent.
Cloud sync, app updates, downloads, or another person streaming video can distort your test results.
Try another test server or compare Wi-Fi versus mobile data to isolate whether the issue is local or upstream.
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.
LizSpeedTest is currently available on Google Play for Android: open the store listing.
If Search Console is already showing impressions for jitter-related queries, these pages go one level deeper into the questions people actually search for.
Understand what jitter range usually feels stable in fast online games.
See how unstable latency affects calls even when speed looks strong.
Follow a practical checklist to diagnose instability on Wi-Fi, mobile, or broadband.
Learn the difference between delay and instability in network tests.
Use real-world clues to tell whether the problem is local Wi-Fi, congestion, routing, or hardware instability.
These pages answer the next layer of practical questions people ask when they want to improve gaming latency, compare unstable metrics, or test Wi-Fi throughout the home.
See the most common causes of high latency on Wi-Fi, mobile data, and congested home networks.
Use a practical gaming checklist to improve responsiveness and isolate the real bottleneck.
Compare two different kinds of instability and learn how each one shows up in real use.
Understand when packet loss is negligible and when it becomes a real quality problem.
Follow a room-by-room method to find weak coverage, interference, and hidden dead zones.