Why is mobile friendliness important?

Mobile friendliness is a critical ranking factor for Google's mobile-first indexing. It ensures that users on smartphones have a positive experience without having to zoom or scroll horizontally.

How does this tool calculate the score?

Our tool analyzes the HTML for responsive design signals like the viewport meta tag, flexible layouts, and media queries.

What is mobile-first indexing?

Mobile-first indexing means Google uses the mobile version of the content for indexing and ranking. It doesn't mean mobile-only, but the desktop version is secondary.

How do I fix 'Content wider than screen'?

This usually happens when elements have a fixed width (e.g., width: 800px). Use relative units like width: 100% or max-width: 100%.

Is iPad considered mobile?

Tablets are a middle ground, but for SEO purposes, 'mobile friendly' typically refers to optimization for smaller smartphone screens.

Does mobile friendliness affect desktop rankings?

Yes, because Google has moved almost all sites to mobile-first indexing, the mobile compatibility of your site affects your visibility across all devices.

How often should I test my site?

You should test your site whenever you change the layout, add new components, or update your CMS/Theme.

Mobile Friendly Test | Best Responsive Website Mobile Testing Tool

Why Your Website Must Be Mobile-Friendly

Since Google announced Mobile-First Indexing, the way we build and maintain websites has changed forever. Today, Google primarily uses the mobile version of a site for indexing and ranking. If your site isn't optimized for smartphones, you are essentially invisible to a majority of searchers.

Speed & Core Web Vitals

Mobile users are often on slower networks. Optimizing images, leveraging browser caching, and minimizing JavaScript are essential for passing the LCP (Largest Contentful Paint) metric.

Touch Accessibility

Buttons and links must be large enough to be clicked by a thumb. Tap targets smaller than 44px can lead to user frustration and high bounce rates.

Responsive Design vs. Separate Mobile Sites

While "m." subdomains were popular a decade ago, Responsive Web Design (RWD) is now the gold standard. RWD uses a single codebase that adapts to any screen size using CSS media queries. This prevents duplicate content issues and makes social sharing much cleaner.

The Role of the Viewport Meta Tag

The viewport meta tag <meta name="viewport" content="width=device-width, initial-scale=1"> is the heartbeat of a mobile-friendly page. It tells the browser how to control the page's dimensions and scaling. Without it, mobile browsers will render your page at a fixed desktop width (usually 980px) and scale it down, resulting in tiny, unreadable text.

Common Mobile SEO Mistakes

Blocked Resources: Ensure Googlebot can access your CSS, JavaScript, and image files.
Unplayable Content: Avoid Flash or limited-format videos that don't work on mobile.
Intrusive Interstitials: Pop-ups that cover the entire screen on mobile can lead to lower rankings.
Small Font Size: Text should be at least 16px for comfortable reading without zooming.

Mobile Friendly Test Tool