Chrome's Headless mode is now more useful for developers, by bringing it closer to Chrome's regular "headful" mode.| Chrome for Developers
Site performance is very important, first of all, from the perspective of users, who expect a good experience when visiting the site. The user should not wait too long for the page to load. We all know how annoying it can be when we want to press an element and it jumps to another place on the page or when we click on a button and then nothing happens for a very long time. The state of a site’s performance in these aspects is measured by Web Vitals performance metrics and most importantly b...| blog.allegro.tech
You've looked through your field data, and it turns out that you have some slow interactions. The next step is to learn more about how to manually test those interactions, and identify the causes behind them.| web.dev