A set of specific metrics Google uses to measure real user experience — loading performance, interactivity, and visual stability — that factor into search ranking and, more importantly, reflect whether visitors actually have a good experience on the page.
Largest Contentful Paint measures how quickly the main content becomes visible, Interaction to Next Paint measures how responsive the page is to input, and Cumulative Layout Shift measures how much the page visually jumps around while loading. Together they approximate real experienced quality more than older, purely technical speed metrics did.
Large catalogue queries, heavy third-party scripts mandated by a corporate parent, and unoptimised media are common causes on pharmaceutical sites specifically — see Core Web Vitals fix for how we diagnose and fix the actual cause per template.
The metrics are a proxy for real visitor experience, not the goal itself — fixing the underlying causes improves both the score and what visitors actually experience, which is the point.
Yes, Core Web Vitals is one of many ranking signals Google uses, though it is rarely the single largest factor in how a page performs in search — content relevance, quality, and topical authority generally matter more. Treat it as a meaningful contributor worth fixing, not the one lever that determines rankings on its own.
No, and it is worth being cautious of anyone who promises one — scores can fluctuate with real-world conditions like device and connection speed. We fix what the underlying metrics are measuring, such as load speed and layout stability, and report both the field data and the resulting score.
Closely — Core Web Vitals are a specific, measurable subset of overall site performance, and improving them usually happens as part of broader speed and technical optimisation work rather than as an isolated task. See website speed optimisation for the fuller scope this typically sits within.
Check them at least quarterly, and immediately after any significant content, plugin, or design change, since new page elements can quietly reintroduce the same loading or layout issues that were previously fixed. A one-time optimisation pass does not stay valid indefinitely as a site continues to grow and add new features.
Tell us what is failing and we will diagnose the actual cause per template.