I've noticed big differences between pingdom loading times and webpagetest. When I use Amsterdam for both, and best connection for webpagetest I have for example 1.2 sec in Pingdom and 2.5sec in webpagetest. Any idea why there is so much difference? Other thing I don't understand with pingdom: sometimes when i run the test, it last for 5sec with the counter goind up (2sec,3sec....), then it shows 1.3sec as a result... anyone experienced this before ? I'm glad pingdom tells me this slow number but doesn't seem to be relevant as people tend to find the website slow.