Glossary
Core Web Vitals
Core Web Vitals are a specific set of measurements Google uses to judge real-world page experience: how quickly the main content loads, how quickly the page responds to interaction, and how much the layout shifts around while loading.
Why it matters
A slow or jumpy website loses visitors before they've read a word. Studies consistently show bounce rates climbing sharply for every extra second of load time. Core Web Vitals matter for the same reason from Google's side: they're one of the signals used to judge whether a page delivers a decent experience, which factors into ranking.
For a local service business, this usually comes down to unoptimised images, bloated page-builder code, and third-party scripts (chat widgets, tracking pixels) all competing to load at once.
Common mistakes
- Uploading full-resolution photos straight from a phone instead of compressing them for the web
- Stacking too many third-party scripts and embeds on one page
- Choosing a heavy page-builder template that loads far more code than the page actually needs
- Never testing real-world load speed on an average mobile connection, only on a fast office wifi
Related terms
Core Web Vitals FAQ
Do Core Web Vitals really affect my Google ranking?
They're one signal among many, not the deciding factor, but a genuinely slow, unstable page makes everything else (content quality, conversion) harder to prove, since visitors leave before seeing it.
How can I check my own site's Core Web Vitals?
Google's free PageSpeed Insights tool reports these metrics for any public URL and flags the specific issues dragging the score down.
Where this applies
See this term in practice on Kwise Web's own pages.
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