Core Web Vitals

noun, plural

Topic: Search and visibility

1. A set of measurements, defined by Google, of how fast a page loads, how quickly it responds to a click and how stable it stays while loading.
2. There are three: Largest Contentful Paint, which measures how soon the main content appears; Interaction to Next Paint, which measures how quickly the page responds when you tap or click; and Cumulative Layout Shift, which measures whether things jump around as the page loads. Good scores help your visitors first and give a small boost in search. You can check yours for free in PageSpeed Insights or in Google Search Console.

Example The slow product photos dragged down the page’s Largest Contentful Paint score.

See also PageSpeed Insights WebP Caching