Web performance is the way how people perceive the speed at which actions on the web pages return a meaningful response. A key aspect of the web performance is the way how we can measure it. And, we as a community created a lot of metrics with a goal to give a precise answer to this questions. With this talk, I’d like to explain in details a set of relatively new performance metrics focused on the interactivity of our web pages. I’ll also share the reasons why a page might not be interactive and how this affects people’s experience on the web.