Core Web Vitals
Also known as: CWV
Core Web Vitals are a set of Google metrics measuring real-world page experience — loading speed, interactivity, and visual stability — that influence search rankings.
The three current metrics are LCP (Largest Contentful Paint, loading), INP (Interaction to Next Paint, responsiveness), and CLS (Cumulative Layout Shift, visual stability). Together they quantify how a page actually feels to a real user.
Google uses Core Web Vitals as a ranking signal, especially as a tie-breaker between pages of similar relevance. More importantly, fast, stable pages convert better — slow loads are one of the biggest causes of bounces and abandoned carts.
They're improved through engineering: optimised images, efficient code, reserved space for media to prevent layout shift, and fast hosting. This is where technical SEO and web development overlap.
Related terms
Organic Traffic
Organic traffic is the visitors who reach your site through unpaid search engine results, as opposed to paid ads, social, or direct visits.
Bounce Rate
Bounce rate is the percentage of visitors who land on a page and leave without taking any further action or visiting a second page.
Landing Page
A landing page is a standalone page built around a single goal — usually capturing a lead or making a sale — that visitors 'land' on from an ad, email, or campaign.
Search Engine Results Page (SERP)
A SERP (Search Engine Results Page) is the page a search engine returns in response to a query, listing organic results, ads, and rich features.
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