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.
Keep going
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.