What are Core Web Vitals?
Core Web Vitals are a set of real-world, user-centered metrics that quantify key aspects of the user experience. They measure dimensions of web usability such as load time, interactivity, and the stability of content as it loads (so you don't accidentally tap that button when it shifts under your finger - how annoying!). LCP (largest contentful paint): The amount of time to render the largest content element visible in the view port, from when the user requests the URL. FID (first input delay): The time from when a user first interacts with your page (when they clicked a link, tapped on a button, and so on) to the time when the browser responds to that interaction. CLS (Cumulative Layout Shift): CLS measures the total of all individual layout shift scores for every unexpected layout shift that occurs during the entire lifespan of the page.
