Free tool · powered by Google Lighthouse
Mobile-Friendly Test
See exactly how your page looks on a phone, and whether it is easy to use and fast on mobile.
Takes 15 to 40 seconds.
Checking…
The first screen a phone visitor sees.
What makes a site mobile-friendly
- A responsive layout that adapts to the screen, set up with a viewport tag.
- Tap targets at least 24 × 24 px (ideally 48 px) with space between them.
- Readable text without zooming: 16 px body text is a good minimum.
- Zoom left on, so people with low vision can enlarge the page.
- Fast loading on mobile data: compressed images and fewer scripts.
Frequently asked questions
Why does mobile-friendliness matter?
Most visitors arrive on phones, and Google ranks sites using their mobile version (mobile-first indexing). A site that is hard to use on a phone loses both visitors and rankings.
What does this test check?
It loads your page on a simulated mid-range phone with Google Lighthouse, then checks that the page is set up for mobile screens (viewport), that buttons and links are big enough to tap, that people can still zoom, and how fast it loads on mobile.
Google retired its own Mobile-Friendly Test. Is this the same?
Google closed its standalone test in 2023 and moved the checks into Lighthouse, which this tool runs. You also see a screenshot of the page on the phone.
My site fails. How do I fix it?
Most problems come from an old theme that is not responsive, fixed-width elements, or tiny buttons. A modern responsive theme fixes most of them; speed issues need image, caching and script optimisation.
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