Sam Knows first test the latency, followed by your download speed and your upload speed.

### Free to use

Sam Knows is free, there are no ads so the speed test earns 1 point.

### Easy to use

Sam Knows didn't pass the WCAG 2.0 Level A test.

To start the speed test 1 click is enough. So the Sam Knows earns 1 points for this.

### Accuracy and consistency

Tested with a clean version of Chromium, throtteld at 30Mbps (30720 kbps) the following measurements are done.

Test Server: Unknown

- 31.6Mbps (22 seconds)
- 31.6Mbps (27 seconds)
- 31.6Mbps (25 seconds)
- 31.4Mbps (22 seconds)
- 31.6Mbps (25 seconds)

Tested with a clean version of Firefox, throtteld at 30Mbps (Wi-Fi) the following measurements are done.

Test Server: Unknown

- 32.8Mbps (31 seconds)
- 32.7Mbps (33 seconds)
- 32.7Mbps (32 seconds)
- 32.2Mbps (33 seconds)
- 32.1Mbps (31 seconds)

That gives an average of 32.0Mbps and a standard deviation of 0.54Mbps for the downloadspeed. The average and standard deviation for the time required are respectively 28 seconds and 4 seconds.

Note that based on the Chromium measurements the average download speed is 31.6Mbps with a standard deviation of 0.09Mbps. While the Firefox measurements gives an average download speed of 32.5Mbps with a standard deviation of 0.32Mbps.

Based on the measurements noted above you might conclude that the throttling speed of Firefox compared to the throttling speed of Chromium is significant different. The throttling speed of Firefox is 3% more compared to Chromium.