Page Speed Checker

Free Page Speed Checker

Test your Core Web Vitals and page performance. Check LCP, CLS, FCP, TTFB, and get insights to improve your website speed.

3 of 3 free checks remaining today

Test may take 10-30 seconds to complete

What Our Page Speed Checker Tests

Comprehensive performance analysis

Core Web Vitals

Measure LCP, CLS, and FCP - the key metrics Google uses for page experience ranking.

Loading Times

Get detailed timing metrics including TTFB, DOM interactive, and full load time.

Resource Analysis

See total page weight broken down by JavaScript, CSS, and images.

Performance Score

Get an overall performance score with grade and actionable recommendations.

Frequently Asked Questions

What are Core Web Vitals?

Core Web Vitals are a set of metrics that measure real-world user experience: LCP (Largest Contentful Paint) measures loading, CLS (Cumulative Layout Shift) measures visual stability, and FID/INP measures interactivity.

What is a good LCP score?

LCP should be 2.5 seconds or less for a good user experience. Between 2.5-4 seconds needs improvement, and over 4 seconds is considered poor.

What is CLS and why does it matter?

CLS (Cumulative Layout Shift) measures how much page content shifts during loading. A good score is 0.1 or less. High CLS causes frustrating user experiences when buttons or text move unexpectedly.

What is TTFB?

TTFB (Time to First Byte) measures how long it takes for the browser to receive the first byte of response from the server. A good TTFB is under 800ms.

How do Core Web Vitals affect SEO?

Google uses Core Web Vitals as a ranking factor. Pages with good Web Vitals may rank higher than similar pages with poor performance, especially for competitive searches.