Internet Speed Test
Measure your download and upload throughput, latency while idle and under load, jitter, and connection stability.
Runs for about 25 seconds. No app or sign-in required.
- Ping
- Download
- Upload
Network quality score
Measurement details
| Idle latency (min / median / 75th) | — · — · — |
|---|---|
| Latency while downloading | — |
| Latency while uploading | — |
| Bufferbloat (loaded − idle) | — |
| Download min / avg / peak | — |
| Upload min / avg / peak | — |
| Samples collected | — |
Client … · Server speedtest.browlovers.com
How the test works
1. Ping & jitter
We send a burst of tiny requests to our server and time each round trip. The fastest round trip is your ping; the variation between them is your jitter.
2. Download
Your browser pulls random data over several parallel connections for about 12 seconds, measuring how many megabits per second your line can sustain.
3. Upload
Then the direction flips: your device pushes random data to our server so we can measure your real-world upload capacity the same way.
Throughout the download and upload stages we keep sending small timing probes in the background, so you also see how your latency behaves while the connection is busy — the number that decides whether a video call survives someone else starting a download.
Latency under load: the metric most speed tests hide
A speed test that only reports idle ping tells you how your connection behaves when nothing is happening — which is not when problems occur. BrowSpeed measures latency continuously, including while the line is saturated, and reports both numbers.
The gap between them is bufferbloat: your router or modem queues up packets it can't send fast enough, and everything interactive gets stuck behind that queue. It's why a game lags the moment someone starts a large upload, even on a fast plan.
| Latency under load | What it means in practice |
|---|---|
| Under 100 ms | Excellent — calls and games stay smooth even while other devices are downloading |
| 100–300 ms | Noticeable — occasional stutter in calls and lag spikes in fast-paced games |
| Over 300 ms | Severe bufferbloat — expect dropped calls and unplayable lag whenever the line is busy |
If your loaded latency is far above your idle latency, the fix usually isn't a faster plan — it's enabling Smart Queue Management (SQM/fq_codel) on your router, or replacing an old modem. Our guide on ping, jitter and latency covers what to change.
Stability and connection quality scores
We also track how steady your throughput stays across the test (stability), then combine speed, latency, jitter and stability into plain-English ratings for the three things people actually care about: video streaming, online gaming and video calls. When a rating isn't "Great", we name the specific bottleneck rather than just showing you a number.
What do my results mean?
Speed is measured in Mbps (megabits per second). Here's a quick guide to what different download speeds can handle:
| Download speed | What it handles comfortably |
|---|---|
| 0–5 Mbps | Email, basic browsing, music streaming on one device |
| 5–25 Mbps | HD video streaming, video calls, browsing on a few devices |
| 25–50 Mbps | 4K streaming on one screen, online gaming, small households |
| 50–100 Mbps | Multiple 4K streams, large downloads, families with many devices |
| 100+ Mbps | Heavy simultaneous use, fast large-file downloads, smart homes |
Upload speed matters most for video calls, cloud backups and live streaming — aim for at least 5–10 Mbps. Ping below 50 ms feels responsive; competitive gamers want under 30 ms. Read more in our guide: What is a good internet speed?
Tips for an accurate result
- Use a cable if you can. Wi-Fi almost always tests slower than a wired connection — that gap is your Wi-Fi, not your ISP.
- Close heavy apps and downloads. Streaming, cloud sync and system updates share your bandwidth and lower the result.
- Test more than once. Run the test at different times of day — evening slowdowns usually mean network congestion.
- Sit near the router for Wi-Fi tests. Distance and walls can halve your throughput. See our Wi-Fi speed guide.
Frequently asked questions
Is this speed test really free?
Do you store my results or personal data?
Why do I get different results from other speed tests?
Why is my Wi-Fi slower than my plan?
What's more important — speed, ping or jitter?
Guides & resources
What Is a Good Internet Speed?
Mbps explained for real life — how much speed you actually need for streaming, gaming and working from home.
15 Ways to Make Your Wi-Fi Faster
Practical fixes from router placement to channel congestion that genuinely improve your wireless speed.
Ping, Jitter & Latency Explained
Why these three numbers matter more than raw speed for gaming, video calls and live streaming.
Why Is My Internet Slower Than Advertised?
The real reasons behind the gap between your plan and your results — and how to test properly.