Have questions about images on the web? Tweet your questions to @ChromiumDev with #AskChrome and we'll answer the top questions in our next #AskChrome episode on YouTube.

Web Performance Testing at YouTube

Even though YouTube operates at a scale of over a billion users per month, web performance testing follows the same core principles that you can apply to your own site. In this video, learn about how we measure the page load speed and how we instrument tests to make the experience even faster. We'll look at two front end performance testing methodologies: Real User Monitoring (RUM) with Client Side Instrumentation and synthetic testing with WebPagetest.