You may need to select Reload Image to redo the test.
The vertical bars represent the range of time taken by packets of
each size. The straight line is fitted to the minimum times and
represents the bandwidth from this server
(vancouver-webpages.com) to your node 188.8.131.52.
The available bandwidth (kilobits/second) is given at the top of the graph. The offset (at the left) is due to processing time in the routers and nodes, together with the lightspeed delay in the cables.
This test transfers about 80kb in each direction.