Mobile-Friendly Test
Google retired its Mobile-Friendly Test in December 2023, but mobile usability still matters — Google indexes the mobile version of every site. This test checks the essentials in your page's HTML (viewport, zoom, fixed widths, plugins, small text, responsive images) and runs a Lighthouse mobile test for a real phone screenshot.
Enter a URL. The tool fetches the page's HTML and checks the viewport meta tag, whether zooming is disabled, fixed-width elements wider than a phone, plugins such as Flash, tiny inline fonts, responsive images and mobile-friendly form fields. In parallel it runs a Google Lighthouse mobile test for a phone screenshot, mobile speed and accessibility scores.
Google retired its Mobile-Friendly Test in December 2023. This tool checks the same essentials in the page's HTML and runs a Lighthouse mobile test for a phone screenshot and layout-shift and speed data.
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Suggest a Feature or Improvement for Mobile-Friendly Test
Need custom options, higher limits, or extra format support? Let our engineering team know!
How to use Mobile-Friendly Test
- 1Enter the page URL.
- 2Click Test on mobile.
- 3Fix any failed HTML checks — the viewport tag first.
- 4Check the phone screenshot for text that's too small, content that overflows or pop-ups that cover the page.
What makes a page mobile-friendly
A mobile-friendly page sets a responsive viewport (width=device-width), fits the screen without sideways scrolling, uses text large enough to read without zooming, spaces links and buttons for fingers, and avoids plugins phones can't run. It shouldn't block zooming, which people with low vision rely on.
Since mobile-first indexing, Google crawls and ranks the mobile version of your pages. Content, links and structured data missing from your mobile layout effectively don't exist for Google.
Limits of any automated test
HTML checks can't see everything your stylesheets do, so pair them with the screenshot and a quick test on your own phone. Lighthouse also flags viewport and font issues and measures mobile speed; for the full breakdown use the Page Speed Checker or the Core Web Vitals Checker.
Frequently Asked Questions
What happened to Google's Mobile-Friendly Test?
Google retired the Mobile-Friendly Test and the Mobile Usability report in December 2023, recommending Lighthouse instead. This tool combines Lighthouse's mobile test with direct HTML checks.
Why does my site fail the viewport check?
The page is missing <meta name="viewport" content="width=device-width, initial-scale=1">, or sets a fixed width. Without it, phones render the page at desktop width and shrink it.
Is disabling zoom bad?
Yes. user-scalable=no or maximum-scale=1 prevents people from zooming in, which is an accessibility problem that Lighthouse flags.
What happens to the URLs I analyze?
Your browser can't read other websites directly, so our server fetches the public page once, returns the HTML to your browser, and the analysis runs on your device. We don't store the page, the results or a history of the URLs you check. Private and internal addresses are blocked. For pages behind a login, use the Paste HTML option.
Is this SEO tool free? Do I need to sign up?
It's completely free with no sign-up, no email and no daily credits. Use it as often as you like.
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