Kostricani Speed Test Run a new test
Google Lighthouse performance intelligence

Make every millisecond count.

Test your Core Web Vitals and receive prioritized fixes that make your website faster on mobile and desktop.

Mobile + DesktopTested together
Lighthouse metrics Desktop + Mobile No signup
Sample report
example.com
Preview
Mobile performance
86
out of 100
LCP
2.1 sLoading
TBT
148 msInteractivity
CLS
0.04Stability
Beyond the score

Actionable insights. Real improvements.

Precise diagnostics

See Core Web Vitals, requests, page weight and the technical issues affecting performance.

Prioritized fixes

Work from the highest-impact opportunity down, with estimated time and byte savings.

Track over time

Open recent reports from this browser and compare how your mobile and desktop scores change.

How it works

From URL to clear action plan.

01

Enter any public URL

Paste the page you want to test. No installation, account or code change is required.

02

We test both devices

Mobile and desktop Lighthouse analyses run together to give you a complete view.

03

Fix what matters first

Your report organizes metrics, opportunities and diagnostics by practical impact.

Your workspace

Recent performance reports

Reports created in this browser appear here.
Your first completed speed test will appear here.