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.
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 centerFrequently 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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