Website Speed & Core Web Vitals Checker

Test your website speed with Google PageSpeed Insights. See LCP, CLS, INP, and performance score.

Introduction

Enter your website URL to get a Core Web Vitals report powered by Google PageSpeed Insights. See your LCP, CLS, INP, and overall performance score — the same metrics Google uses for search ranking.

How it works

We send your URL to the Google PageSpeed Insights API, which runs a real Lighthouse audit on a mobile device. The results include Core Web Vitals (LCP, CLS, INP), performance scores, and specific recommendations. The API call happens server-side — no API key is exposed.

Use cases

•Check your website speed before a redesign to set a baseline.
•Compare your speed against competitors before pitching a rebuild.
•Verify that your latest deployment did not regress performance.

FAQ

What are Core Web Vitals?

Core Web Vitals are Google's three key metrics for user experience: Largest Contentful Paint (LCP) measures loading speed, Cumulative Layout Shift (CLS) measures visual stability, and Interaction to Next Paint (INP) measures responsiveness.

Why does my score differ from Google's tool?

PageSpeed Insights runs tests from different locations and at different times. Scores can vary by ±5 points between runs. Use the score as a guide, not an absolute.

How fast should my website be?

Google considers a "Good" LCP to be under 2.5 seconds, CLS under 0.1, and INP under 200ms. If your scores are in the "Poor" range, a rebuild or optimization pass can help.

Can you fix my slow website?

Yes. We specialize in performance optimization for Cambodian businesses. Contact us for a free assessment.

Data source

Google PageSpeed Insights API

Need this built into your own site? Talk to us.

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