Page speed checker

Test how fast a page loads on mobile or desktop, with Core Web Vitals and the biggest fixes in plain English.

Test how fast a page loadsPowered by Google Lighthouse

Find out what slows your page down

Slow pages lose visitors and can rank lower.

Test your most important pages first.

Most visitors are on mobile, so start there.

Start with the fixes that save the most time.

Google's Core Web Vitals measure loading, responsiveness and stability.

Aim for under 2.5 seconds for the main content to appear.

Aim for under 200 milliseconds for the page to respond to taps.

Aim for under 0.1 so the layout doesn't jump while loading.

Rankauto audits every page on your site and lists the issues costing you traffic.