你是说pingdom么
应该是测试网站访问测试对象的速度
How it works
Response time exampleThe Full Page Test loads a complete HTML page including all objects (images, CSS, JavaScripts, RSS, Flash and frames/iframes). It mimics the way a page is loaded in a web browser.
The load time of all objects is shown visually with time bars.
You can view the list of objects either in load order or as a hierarchy. The hierarchy view allows you to see which objects are linked to in for example a CSS file.
Every test also shows general statistics about the loaded page such as the total number of objects, total load time, and size including all objects.
Note: This version doesn't load objects included in JavaScripts. We have also put a limit on the number and size of the objects that are loaded (to prevent the tool from downloading movies, for example).
This Full Page Test was inspired by the OctaGate SiteTimer. We liked what they did and wanted to take the idea one step further.
