Core Web Vitals are fundamental metrics that determine user experience on websites. They include:
1. Largest Contentful Paint (LCP): This metric measures the time it takes for the main content of a page (e.g., images, videos, text) to load and be displayed for the user. The ideal LCP time is under 2.5 seconds from page load.
2. Interaction to Next Paint (INP, replaced FID) assesses page responsiveness using data from the Event Timing API. INP observes the latency of all click, tap, and keyboard interactions with a page throughout its lifespan, and reports the longest duration, ignoring outliers.
3. Cumulative Layout Shift (CLS): This metric measures the stability of a page's layout and how often content shifts within the viewport.
Optimizing Core Web Vitals isn't just about improving search engine rankings. When you enhance the loading speed, responsiveness, and stability of your site, it directly impacts your users. They gain swift access to information, can interact with content freely, and avoid layout shifts that cause frustration.
This means more people will stay on your site, make more purchases, or complete desired actions, ultimately leading to increased conversion rates and revenue.
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