Google's mobile test, rebuilt
Google indexes the mobile version of every site first, and most visits now come from phones. Google retired its standalone Mobile-Friendly Test in 2023, so this tool checks the same essentials: a responsive viewport, whether pinch-to-zoom is allowed, no plugins, responsive images and, from Google Lighthouse, legible font sizes and mobile performance.
It also loads the page in a simulated phone with Google's PageSpeed service and shows a real mobile screenshot, so you can see at a glance whether text is readable and the layout fits the screen.
How to test mobile-friendliness
- 1
Enter the URL
Any public page.
- 2
Wait for the phone render
About 15–40 seconds.
- 3
Review the checks
Fix anything marked as failed.
Key features
Viewport check
The foundation of a responsive page.
Real phone screenshot
Rendered by Google Lighthouse.
Zoom and plugin checks
Accessibility and compatibility.
Mobile speed score
Lighthouse performance on a phone.
Common uses
- Before launching a site: Confirm it works on phones.
- Checking landing pages: Most ad clicks come from mobile.
- Fixing Search Console warnings: Verify mobile usability fixes.
Tips and good to know
- Add <meta name="viewport" content="width=device-width, initial-scale=1"> to every page.
- Speed matters on mobile networks too — dig deeper with the Page Speed Checker.
Frequently asked questions
Is Google's Mobile-Friendly Test still available?
No. Google retired it in December 2023 and recommends Lighthouse instead. This tool combines Lighthouse data with the classic mobile checks.
Why does my site look tiny on phones?
It's probably missing a responsive viewport meta tag or uses a fixed desktop width.
Does mobile-friendliness affect rankings?
Yes. Google uses the mobile version for indexing and ranking, and page experience signals are measured on mobile.