Real Jitter Measurement
We fire a rapid burst of pings and measure how much the delay between them varies — the exact instability that causes stuttering audio and frozen video frames.
WiFi Speed & Latency Test
Measure download, upload, ping, jitter, and packet loss — the five numbers that actually explain why your video calls freeze, even when your "speed" looks fine.
Ready to test
Idle
Download
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Mbps
Upload
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Mbps
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Ping (ms)
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Jitter (ms)
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Packet Loss
Why It Matters
More Than a Speed Number
Most WiFi speed tests stop at download and upload. This one measures the two metrics that actually explain a choppy Zoom call or a laggy match: jitter and packet loss.
Packet Loss Detection
Every dropped or timed-out request during the ping burst is logged, giving you an estimated packet loss percentage most consumer speed tests never show.
Accurate Ping
Ping is averaged across many samples rather than a single request, so one lucky or unlucky round trip can't skew your result.
Live Download & Upload
Speeds update in real time as data streams to and from a nearby Cloudflare edge server, so you can watch throughput rise and dip as your connection actually behaves.
Works on Any Device
Runs the same way in a phone browser on WiFi or cellular, on a laptop, or on a smart TV browser — no app store, no install, no sign-up.
100% Private
The test exchanges throwaway data with the network — nothing about your device, files, or browsing is read, stored, or uploaded anywhere.
The Process
How the Test Runs
Four short phases, roughly 15 seconds total, run automatically once you hit start.
Ping Burst
A rapid series of small requests is sent to measure round-trip time, giving us ping, jitter, and any dropped requests.
Download Test
Data streams down from a nearby edge server for a few seconds while we track how fast the bytes actually arrive.
Upload Test
Your browser sends data back out, measuring the return path — often the weaker direction on home WiFi.
Full Report
All five results appear together with a plain-language verdict on whether your connection can handle calls, streaming, or gaming.
Use Cases
Who Needs This Test?
From remote workers to gamers, jitter and packet loss explain the problems raw speed numbers can't.
Remote Workers
Stop the call freezes
Check jitter before an important video call
Confirm upload can handle screen sharing
Prove a WiFi issue exists to your IT team
Online Gamers
Diagnose lag and rubber-banding
Spot packet loss causing rubber-banding
Watch ping spikes during peak hours
Compare wired vs WiFi stability
Router Troubleshooters
Find the weak spot in the house
Compare results room by room
Test before and after a router reboot
Build a case for an ISP support call
Troubleshooting
What a Bad Result Usually Means
If a number here comes back worse than expected, here's where to look first.
High Packet Loss
Usually router interference or distance. Move closer to the router, switch to the 5GHz band, or check for other devices flooding the same channel.
High Jitter
Often caused by a congested network — someone else streaming or downloading, or a VPN adding an inconsistent extra hop. Pause other traffic and re-test.
Slow Download, Fine Upload
Can point to ISP throttling or evening congestion in your neighborhood. Re-test at a different time of day to see if it's load-related.
Test Stalls or Fails
An ad blocker, VPN, or firewall may be blocking the test's requests. Try disabling extensions for this page or testing in a private window.
FAQ
WiFi Speed Test — Common Questions
Everything you need to know about reading your download, upload, jitter, and packet loss results.
Most video call platforms only need 3-4 Mbps of download and upload speed for HD quality. If your download and upload numbers here are comfortably above that but calls still freeze, the real culprit is usually jitter or packet loss, not raw speed.
Jitter is the variation in delay between packets arriving at your device. Video and audio calls stream in a steady rhythm, so when packets arrive at uneven intervals, the app's buffer runs dry and you hear robotic audio or see frozen frames, even if your average speed looks fine.
Under 1% packet loss is generally unnoticeable. 1-2.5% starts to cause occasional glitches in calls and streams. Above 2.5% is considered high and will cause regular freezing, dropped calls, and rubber-banding in online games.
WiFi speed and your internet plan speed are two different things. Distance from the router, wall interference, band congestion (2.4GHz vs 5GHz), and the number of connected devices all reduce the WiFi speed you actually get, even when your ISP is delivering the full plan speed to your router.
It measures the full path from your device, over WiFi, through your router, out to your ISP, and back. If results are low, test again with a device connected via ethernet or standing next to the router to see how much WiFi itself is the bottleneck.
Yes, for the most accurate reading. Streaming, cloud backups, and downloads running in the background will share bandwidth with the test and lower your download and upload results.