As you probably know by now, Google considers page speed as one of its many signals for search engine rankings. With that in mind, you may also be interested in knowing that in Chrome 6 , developers can access web timing metrics for measuring web page load time across browsers. "Measuring web page load time is a notoriously tricky but important endeavor," says Google software engineer Tony Gentilcore. "One of the most common challenges is simply getting a true start time.