What is a Page Speed Checker?

A Page Speed Checker analyzes how fast your website loads and reports performance metrics like First Contentful Paint, Largest Contentful Paint, and Time to Interactive so you can improve user experience and SEO.

How does the Page Speed Checker work?

Enter your URL, choose desktop or mobile, and click Analyze. The tool simulates a client-side analysis to provide estimated performance metrics for your website.

What are Core Web Vitals?

Core Web Vitals are Google's key metrics for measuring page experience: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).

Is this Page Speed Checker free?

Yes, completely free. No registration, no API keys, no limits. For official field data, use Google PageSpeed Insights.

Page Speed Checker

Analyze website performance, optimize load times, and improve Core Web Vitals

Desktop

Mobile

example.com

Desktop Just now

Performance Score

Excellent

Core Web Vitals

LCP

1.2s

Largest Contentful Paint

FID

12ms

First Input Delay

CLS

0.02

Cumulative Layout Shift

FCP

0.8s

First Contentful Paint

TTI

2.1s

Time to Interactive

TBT

40ms

Total Blocking Time

Request Waterfall (Sample)

Opportunities & Diagnostics

Note: This tool performs a simulated client-side analysis to provide estimated performance metrics. For official field data, consider using Google PageSpeed Insights.

Page Speed Checker

Loading Page Speed Analysis

Page Speed Analysis Results

example.com

Performance Score

Core Web Vitals

Related Tools

Core Web Vitals