Mobile-Friendly Test - Responsive Design Checker

Mobile-Friendly Test

Check if your website is optimized for mobile devices and test its loading speed.

Test URL
Test HTML

Enter a URL or HTML code to see the mobile analysis report here.

Why Mobile Optimization is Critical for SEO

In 2018, Google officially rolled out Mobile-First Indexing, meaning it predominantly uses the mobile version of the content for indexing and ranking. If your site isn't mobile-friendly, you aren't just losing mobile visitors; you're likely losing rankings on desktop searches too.

Key Factors for Mobile Optimization

Common Mobile SEO Errors

Even responsive themes can have issues. Watch out for:

  1. Blocked Resources: Ensure your `robots.txt` file doesn't block CSS or JavaScript files essential for rendering the mobile view.
  2. Unplayable Content: Avoid using Flash or license-restricted media players that don't work on mobile devices. Use HTML5 video instead.
  3. Intrusive Interstitials: Pop-ups that cover the main content immediately after the user navigates to the page can lead to Google penalties.

How to Fix Mobile Usability Issues

If our tool flags your site, start by implementing a Responsive Web Design (RWD). This approach uses CSS media queries to change the layout based on the screen width. For example, a three-column layout on desktop might stack into a single column on mobile. Additionally, focus on Page Speed by compressing images and minifying code.