VPN · Online verification

VPN speed test

Compare the incoming and outgoing speeds of two connections: baseline measurement, retest, and percentage difference in one tab.

Up to 90 seconds·No registration·Methodology and limitations

VPN speed test

Free

Loading the check...

What the test will show

Compare the incoming and outgoing speeds of two connections: baseline measurement, retest, and percentage difference in one tab.

How to take the test

  1. Choose the same traffic limit or duration for both measurements.
  2. Save the first measurement as a baseline, then change only the connection being checked.
  3. Repeat the test in the same tab and compare the results.

How to understand the result

Measuring the path of the browser to the Calcomera node, the result does not show the speed of all sites, does not recognize the VPN automatically, and does not prove the cause of the slowdown.

Compare multiple runs under the same conditions. Then change one factor: connection, device, or setting. If the symptom persists, repeat the test on another device and save the conditions - this will help to more accurately describe the problem to support.

How Calcomera measurements work

Is it possible to find out why a VPN is slowing down?

The comparison shows the change on one route, the result is also influenced by the distance to the node, the load, Wi-Fi and background downloads, and a single measurement is not enough to determine the cause.

Does the VPN switch automatically?

No. You choose your own authorized working connection, the site only performs measurements and does not install a VPN.

If you recognize your problem

VPN slowing your internet? Compare two connections

Measure the speed through the VPN and the basic connection in one tab, understand what the percentages, latency and limitations of the selected node mean.

Figure it out