Community Resources

Tools for Optimizing Performance

Featured Performance Tools

Lighthouse

An open-source, automated tool for improving the quality of web pages. Run audits for performance, accessibility, progressive web apps, and more.

Auditing Analysis Web Vitals

WebPageTest

Provides a free, often detailed, analysis of your website speed and performance from multiple locations around the globe using real browsers.

Speed Test Location Testing Debugging

GTmetrix

Analyzes your site using Lighthouse data and provides actionable recommendations to make your pages faster.

Speed Test Optimization Reports

Browser Developer Tools

Chrome DevTools (Performance Tab)

Record, analyze, and optimize your web application's runtime performance directly within Google Chrome.

Profiling Debugging JavaScript

Firefox Developer Tools (Performance Monitor)

Inspect and debug your web pages with a powerful suite of tools built into Firefox.

Profiling Memory Analysis Rendering

Specialized Tools

PageSpeed Insights

Analyzes the content of a web page, then generates messages to help a developer improve that page. Integrates with Page Speed. (Part of Lighthouse family)

Analysis SEO Google

Pingdom Tools

Monitor your website's uptime and performance from different locations. Get alerts when your site goes down.

Uptime Monitoring Speed Test Alerts