Browser-to-measurement-server session
Measure your
internet speed
Test download, upload, ping and connection stability in real time.
Accurate results, directly in your browser.
Connection details
Internet speed test method, metrics and limitations
This browser test uses Measurement Lab NDT7 to measure download throughput, upload throughput and round-trip response time on the current device and connection. The result describes this test session; it is not a guarantee of every device, server or time of day.
Megabits per second
Milliseconds
Current device and network path
| Measure | Value | Context |
|---|---|---|
| Download | Mbps | Data received by this device |
| Upload | Mbps | Data sent by this device |
| Ping | ms | Round-trip response time |
| Jitter | ms | Variation between response samples |
Methodology
The page starts an NDT7 measurement against Measurement Lab infrastructure and reports the values returned for the browser session. Wi-Fi, device limits, background traffic, routing, server selection and temporary congestion can affect the result. Repeat measurements at different times and compare like-for-like conditions before drawing conclusions.
Full methodology →Data freshness
- Page updated
- Data period
- Live browser measurement
- Responsible editor
- Internet Analysis Research Team
Primary sources
- Measurement Lab NDT7 protocolTest purpose and protocol documentation
- M-Lab public dataPublic measurement data documentation
- Internet Analysis methodology
Limitations
- One test is not a representative sample of an entire broadband plan.
- Wi-Fi, browser, device and background traffic can constrain throughput.
- A nearby test server does not reproduce every application route.
- Advertised ISP speed and measured browser speed describe different evidence.
Related questions
What is a good internet speed?
A useful speed depends on the number of users and activities. Compare the measured download and upload values with the requirements of the applications you actually use.
Why is my result lower than my plan speed?
Wi-Fi conditions, device limits, network congestion, background transfers, protocol overhead and the test path can all reduce a browser measurement.
Should I run the test more than once?
Yes. Repeat under similar conditions and at different times. A series is more useful for diagnosing a recurring problem than one isolated result.