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SEO Tools

Mobile-Friendly Test

Find out if your website is ready for mobile users — Google indexes sites based on their mobile version first, so mobile optimization directly affects your rankings.

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What the tool checks

  • Viewport meta tag configuration
  • Responsive layout and horizontal scrolling issues
  • Font size and readability on small screens
  • Touch target size and spacing
  • Zoom blocking and other usability obstacles

Why it matters

Google uses mobile-first indexing — it evaluates and ranks your site based on the mobile version. A site that's hard to use on a phone (tiny text, horizontal scrolling, cramped buttons) loses rankings and visitors. With the majority of web traffic now coming from mobile devices, this is one of the highest-impact optimizations you can make.

Detailed guide in the help center

Frequently asked questions

What is mobile-first indexing?

Google primarily uses the mobile version of your site for indexing and ranking. Content or features that don't work on mobile are essentially invisible to Google.

How do I know if my site isn't mobile-friendly?

Common signs include a missing viewport tag, content that requires horizontal scrolling, text too small to read, and buttons that are hard to tap.

Is responsive design the right solution?

Yes — responsive design is Google's recommended approach. A single codebase that adapts to all screen sizes is both user-friendly and easiest to maintain.

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