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Core Web Vitals: What They Are and Why Mobile Sales Depend on Them
Speed is a conversion feature, not a nerd metric.
Core Web Vitals are Google’s user-experience metrics for loading, interactivity, and visual stability. For local service businesses, most buyers evaluate you on a phone between jobs. A slow site loses calls even when rankings look fine.
Claorova builds on Next.js and Vercel partly because speed is measurable and fixable. This guide explains what to ask any web vendor.
The three metrics in plain language
Poor scores correlate with higher bounce and lower form completion on mobile.
- LCP (Largest Contentful Paint): how fast main content appears
- INP (Interaction to Next Paint): how fast the page responds to taps
- CLS (Cumulative Layout Shift): whether buttons jump while loading
Common causes on small business sites
Templates often fail here unless optimized aggressively.
- Oversized hero images and autoplay video
- Render-blocking scripts from page builders
- Font and widget sprawl
- Third-party chat widgets loading before content
What to do next
Run PageSpeed on your money pages. If mobile scores are weak and the builder cannot fix it, a Next.js rebuild may cost less than lost leads over a year. See /services/web-design and /services/nextjs-development.
Frequently asked questions
Do Core Web Vitals affect rankings?
They are a ranking signal among many. Even when rankings hold, conversion still suffers on slow pages.
Can Shopify pass Core Web Vitals?
Yes with disciplined themes and image discipline. Heavy app stacks often struggle.