How Fast Is Your Website for Real Visitors?

Three measurements Google takes from real Chrome users on your site: LCP (how fast the main content appears — good is 2.5 seconds or less), INP (how quickly the page reacts when tapped — good is 200ms or less), and CLS (whether the page jumps around while loading — good is 0.1 or less). Google uses them as a ranking signal.

Google's Chrome UX Report (CrUX): anonymized measurements from real Chrome users visiting the site over the last 28 days, reported at the 75th percentile. It's the same field data Google's ranking systems reference — not a one-off lab simulation.

CrUX only publishes data for sites with enough real Chrome traffic. Smaller or newer sites often don't meet the threshold yet — that's a fact about traffic volume, not a verdict on speed. A lab test (like PageSpeed Insights) can still measure those sites.

Yes — they're a confirmed ranking signal, though content relevance matters more. In practice they're a tiebreaker: between two similarly relevant results, the faster, more stable page has the edge. They also affect conversion — slow pages lose visitors before ranking even matters.

Google's published thresholds: LCP good ≤2.5s, poor >4s. INP good ≤200ms, poor >500ms. CLS good ≤0.1, poor >0.25. Between good and poor is "needs improvement". The check above rates each metric against exactly these numbers.

It depends which metric fails: slow LCP usually means oversized images, slow hosting or render-blocking scripts; poor INP means heavy JavaScript; bad CLS means images without dimensions, late-loading ads or shifting banners. Our plain-English guides cover each — and fixing them is core to how we build websites.