LaboratorU
Download, upload, latency and jitter, and how latency rises under load.
Connection Test
Quick test · up to ~210 MBSwitch to
How latency changes under load
Each dot is one probe. Box: middle 50% of probes. Short line: median. Whiskers: 5–95%.
Run the test to see your probes
Probes are placed by their latency; the vertical spread inside a row is only for readability.
Download—Mbps
Upload—Mbps
Latency—ms
Jitter—ms
Upload-loaded
latency—ms
latency—ms
Delta
(upload - idle)—ms
(upload - idle)—ms
Throughput
- Download
- —
- Upload
- —
- Data used
- —
- Test duration
- —
Estimated suitability
- Gaming—
- Video calls—
- 4K streaming—
- Browsing—
Latency measurements
Appears after a test.
What we measure
Download and upload speed in Mbps, latency and jitter in ms, and how much latency rises while the line is busy downloading or uploading.
Limits
Browser measurements to our test server. The test shows that latency rises under load; it does not show where the delay happens.
Run details
Appears after a test.
Full results
Appears after a test.
Estimated suitability
Estimates from the measured numbers, not a guarantee for any service.
History & export
No results yet. Run a test first.