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Mobile Friendly Test

Verify if your website is responsive. Visualize it on different devices or scan your source code for mobile-first best practices.

* Some websites block iframe embedding for security.

Paste Source Code

Paste your HTML `<head>` or CSS content here to grade its mobile configuration.

Mobile Score

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Why is Mobile Friendliness Critical?

In the modern web ecosystem, mobile responsiveness is not just a feature—it's a requirement. With Google's "Mobile-First Indexing," search engines predominantly use the mobile version of the content for indexing and ranking. If your site isn't optimized for smaller screens, you are likely losing significant organic traffic and frustrating users.

Key Statistic: Over 58% of global website traffic now comes from mobile devices. A non-responsive site typically sees a bounce rate 30-50% higher than a mobile-optimized one.

How to Use This Tool

This tool offers two powerful ways to test your site:

  1. Visual Simulator: Enter your URL to see how your site renders within a simulated mobile viewport. This helps check for visual overflow, button sizing, and layout breaks. Note: Some major sites (like Google or Facebook) block this view for security.
  2. Code Scanner: Paste your HTML or CSS code to run a logic-based audit. The algorithm checks for the critical viewport meta tag, responsive media queries, and the use of scalable units.

Core Components of a Mobile Friendly Site

  • The Viewport Meta Tag: This tag tells the browser how to control the page's dimensions and scaling. Without it, mobile browsers render the page at desktop width (usually 980px) and shrink it down, making text unreadable.
  • Responsive Layouts: Using CSS Grid, Flexbox, and Media Queries (@media) allows the layout to adapt fluidly to any screen width.
  • Touch Targets: Buttons and links should be at least 48x48 pixels to be easily tappable with a finger, with adequate spacing to prevent accidental clicks.
  • Readable Fonts: Base font sizes should be at least 16px on mobile to ensure readability without zooming.
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