Google Core Web Vitals are several metrics that Google considers most important for the overall user experience on a web page. Core Web Vitals monitoring is the task of tracking these metrics for web pages and websites. Core Web Vitals include:
- Largest Contentful Paint (LCP): The time it takes for the largest text block or image element to become visible on a web page. An LCP score of 2.5 seconds or faster is considered good.
- First Input Delay (FID): The time from when the user first interacts with a page and when the browser is able to begin processing those interactions. A good FID score is 100 milliseconds or less.
- Interaction to Next Paint (INP): This metric denotes the longest duration of a response from interaction until paint in a page’s lifespan.
- Cumulative Layout Shift (CLS): A measure of the amount of unexpected shifting or changing in the layout of the visual content as a page loads — a measure of the stability of a page and of the quality of user experience.
Monitoring and improving Core Web Vitals can help to enhance user experiences and search engine rankings.