问题
Is there a way to find the page load time for external URLs? My task is to compile a table of page load times for a list of URLs. I have read about the navigation timing API but could not find a way to find the page load time for an external URL that I specify in code. For example, something like http://tools.pingdom.com/fpt/ which analyzes the page load time for the URL we enter(I'm not sure if this is accurate)
回答1:
http://www.webpagetest.org/ is a great tool for this.
It measures the Page Load Time, Speed Index (probably a better measure of speed) and can even show you videos and waterfall diagrams!
来源：https://stackoverflow.com/questions/23427506/find-the-page-load-time-of-external-urls