In simple terms, what are the three things Core Web Vitals measure? (choose all that apply)

Core Web Vitals are a set of metrics that measure real-world user experience. "Page loading speed" is measured by Largest Contentful Paint (LCP), which assesses how long it takes for the largest content element on the page to become visible. "Visual stability" is measured by Cumulative Layout Shift (CLS), which quantifies unexpected layout shifts during page loading. "Site responsiveness" is measured by First Input Delay (FID), which evaluates the time from when a user first interacts with a page to when the browser is actually able to respond to that interaction. "Number of 404 errors" and "Average crawl depth" are important SEO metrics but are not part of Core Web Vitals.