Best Free Tools to Check Your Website Speed

Best for: SEO-focused testing — the most important one to check

This is Google's own tool, and it measures your site the same way Google does. It gives you separate scores for mobile and desktop, highlights your Core Web Vitals (LCP, CLS, INP), and shows a prioritized list of exactly what to fix. Since it uses real Chrome user data, the scores here are the ones that actually affect your Google rankings. Start here.

What it gives you: Performance score (0–100), Core Web Vitals, specific recommendations

Best for: Detailed technical breakdowns

GTmetrix gives you a waterfall chart — a visual breakdown of every single file your website loads and how long each one takes. This is the tool developers use to diagnose exactly why a site is slow, not just that it's slow. The free version lets you test from a fixed location and gives you Lighthouse scores.

What it gives you: Letter grade (A–F), waterfall chart, video playback of page load, historical tracking

Best for: Quick, simple checks with a clean report

Pingdom is the easiest to read of the three. Enter your URL, pick a test location, and get a clean performance grade, load time, page size, and number of requests. Less technical than GTmetrix, but great for a fast gut check or for sharing results with a client.

What it gives you: Performance grade (A–F), load time, page size, quick recommendations

Best for: Advanced testing — different devices, locations, and connection speeds

WebPageTest is what performance engineers use. You can simulate different devices (iPhone, Android), connection speeds (3G, cable, fiber), and test from over 40 global locations. Completely free and open source. Overkill for most small business owners, but worth knowing about if you want to see how your site performs on a slow mobile connection.

What it gives you: Detailed waterfall, video comparison, Core Web Vitals, multi-location testing