Thus, you can see which requests are slowing down the whole page load.

所以，可以看出哪些请求使整个页面的装载变慢了。

youdao

Load the initial logon page.

装载初始登录页面。

youdao

When I load the page in my browser, I see the result shown in Figure 6.

在浏览器中加载页面时，我看到了如图6所示的结果。

youdao

As we started tracking this data we discovered something surprising: the majority of ripple effect website failures are caused by online advertising services, whose ads either slow down page load times or, worse, can actually prevent the entire page from loading.

FORBES: Revenue Good, Outages Bad: Ad Servers Can Slow Your Site

This handy tool loads a page from four locations around the world and provides both average load times and a wealth of detail on how long each page element takes to load.

FORBES: Don't Let a Slow Website Kill Your Bottom Line

We recommend aiming for a page load time of 2 seconds, but anything under 2.5 seconds is reasonable.

FORBES: Ecommerce Marketing Checklist for 2013