Core Web Vitals

Google's three page-experience metrics — loading (LCP), interactivity (INP), and visual stability (CLS) — with published 'good' thresholds (e.g. LCP under 2.5 seconds).

Free · no signup · last reviewed August 29, 2026

The definition

Google's three page-experience metrics — loading (LCP), interactivity (INP), and visual stability (CLS) — with published 'good' thresholds (e.g. LCP under 2.5 seconds).

Why it matters to an owner

The rare SEO factor with a definitive test: run PageSpeed Insights, fix what's red, stop at green. Past 'good', your time is better spent elsewhere.

This is the work. Want it done?

Everything here is free to use yourself — that’s the point. If you’d rather a senior marketer just handle it, in your accounts and your name: 20-minute call, no pitch deck.

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