⚡ For shops, business websites and sales pages

Real mobile speed test (Core Web Vitals)

Your page opened in a real browser, as on a mid-range Android phone on 4G: LCP, FCP, CLS, TBT, server response time, weight, a capture of the first screen and concrete fixes. Free, no sign-up.

The test takes 5 to 40 seconds: the page is really loaded, with a processor slowed down four times and a simulated 4G connection. Nothing is stored unless you ask for the detailed analysis.

Frequently asked questions

How is speed measured?

The page is opened in a real Chromium browser set up like a mid-range Android phone: mobile screen, simulated 4G connection and a processor slowed down four times. The measurements come from the browser itself, with the thresholds Google publishes for Core Web Vitals.

Why does my result change from one test to the next?

Server load, caching, ads and third-party scripts vary with every load. Compare several runs, and rely on real visitor data in Google Search Console (Core Web Vitals report) when it exists.

My site is fast on my computer, why is it slow here?

A computer has a much more powerful processor and often a fibre connection. Many visitors arrive on an average phone over a mobile connection: that is the case this test reproduces, because it is where customers are lost.

My site runs on WordPress: where do I start?

Usually: decent hosting with a recent PHP and OPcache, a page cache, a Redis object cache, images compressed to WebP, fewer plugins and a light theme rather than a heavy page builder. The details depend on your site: that is what the detailed analysis covers.

Is my data stored?

The address tested and the result are not kept, apart from a cache of a few minutes to show the same result on the conversion audit. Only a request for the detailed analysis is stored, so that I can answer you.