right where most of the online services and connectivity providers run their systems. Moreover,
M-Lab has a scientific approach without any commercial bias.
Other Internet speed tests you may find online, typically measure the speed between you and
the service provider’s network. We call this approach a “last mile” test. It is a valid approach to
verify that your provider is honoring the speed promised in your contract. But it doesn’t tell the
whole story on how fast you can watch movies, send large attachments or make HD video calls
with your grandchildren (or nieces), because these services are typically outside the network of
your Internet provider (think sending a package on the other side of the world: you ship it at the
local post office but the Postal Service will choose someone else to deliver it outside of the
country. How good is this someone? And what delivery speed class has been asked by the
Postal Service?)
With this Fingbox test you’ll find out if your Internet provider is selling you a 100 Mbit/s “last mile”
connection, but takes you to the Internet backbone with less (very, very common, especially
during prime time, because to be economically viable, the service provider applies some degree
of “overbooking” to the expensive Big Internet connection).
Fingbox User’s Guide - App v6.2.1 Page 36