Latency, typically measured in milliseconds, is the time it takes data to travel from a computer to
another computer (or to a server running a website.) For example, it might take a tenth of a second for the username that you typed into a webpage to actually reach the webserver so that it can log you in.
The time it takes the data to travel between any two computers is dependent on lots of factors, especially the speed of light since no data can travel faster than that. Other factors include the distance between your computer and the destination; the material used to make the cables that carry your data; the number of routers in the path between your computer and the destination, and whether your internet connection is on the same ISP (internet service provider) as the connection of the destination computer.
A speed test often includes a ping test, to show how many milliseconds it takes for a data packet to be sent and returned from a server at some location. This is very helpful, but it is much more helpful to know exactly how much time it takes to reach the destination computer or server that you are communicating with. To find out the time it takes to reach the destination computer, a special server program has to be run on that computer in order to properly respond to the test. Whats more, firewalls have to be crossed in ways that don’t require a person to have to configure their local router to allow incoming data on some particular network port.
Internetlatencytest.com solves the above problems through a new program that runs on both sides of a test, and reports the result in both directions. To get started, simply download the windows executable file on the right side of this page, and double click it to run. When your test partner does the same, and you both have entered each others’ email address, the program will spend about 2 minutes gathering the required data and then you’ll be able to see the detailed results about your internet performance.
To get started, just click on the ‘get started’ link at the top of this page.