⚡ Page Speed Tools

The official Google tool for analysing page performance, combining simulated Lab Data with real-world Field Data from the Chrome UX Report to give you a complete picture of your Core Web Vitals.

Built directly into Chrome's developer tools, Lighthouse lets you run instant performance, accessibility, and SEO audits without leaving your browser, making it ideal for quick iteration during development.

The professional's choice for advanced performance testing, offering connection throttling, first-view versus repeat-view comparisons, a filmstrip view of page load, and an extraordinary depth of technical diagnostics.

An open-source image compression tool from Google that lets you visually compare compression formats like WebP, AVIF, and MozJPEG side by side to find the best balance of quality and file size.

The most popular tool for compressing PNG and JPEG images without visible quality loss, with a simple drag-and-drop interface and integrations for WordPress, Photoshop, and automated workflows.

Shows you which URLs across your entire domain are rated Poor or Need Improvement for Core Web Vitals, so you can prioritise fixes where they'll have the most impact on real users.

One of the most widely used performance testing tools, GTmetrix combines a familiar letter-grade score with a detailed waterfall chart and the ability to test from multiple global locations and device types.

A high-end performance monitoring platform that goes beyond speed scores to help you connect site performance directly with business outcomes like conversion rates, bounce rate, and revenue.

An end-to-end image and video management platform that automatically delivers the smallest possible file in the right format and size for each user's device and browser.

A web-based Lighthouse runner that saves your audit history so you can track how your performance score changes over time, making it useful for monitoring the impact of your optimisation work.

A monitoring platform built specifically around Core Web Vitals and Lighthouse metrics, with automated alerts when performance drops and clear historical charts showing how changes to your site affect speed.

A public dataset of real-world performance data collected from actual Chrome users, covering millions of websites and powering the field data you see in PageSpeed Insights and Search Console.