Mobile Friendly Test
Check if your website is mobile friendly.
Check if your website is mobile friendly.
This free Mobile Friendly Test from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Mobile Friendly Test
- Enter the URL or domain.
- Pick the depth or check options if the tool supports them.
- Run the audit - results stream in as each check completes.
- Export the report or fix the issues flagged.
What you can do with the Mobile Friendly Test
- Pre-flight a new website before going live.
- Quick monthly health check on client sites.
- Diagnose why a page is slow or returning errors.
- Verify redirects after a domain or URL migration.
Why use KX Toolkit's Mobile Friendly Test
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
Always run an audit BEFORE you publish, not after - most issues are easier to fix while the page is still in staging.
Related Website Management Tools
If you find this tool useful, explore the full Website Management Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
Why does Google care so much about mobile-friendliness?
Since 2019 Google uses mobile-first indexing, meaning it crawls and ranks pages based on the mobile version, not desktop. Over 60% of global searches happen on mobile, and a poor mobile experience tanks both rankings and conversions. Mobile-friendliness is also a confirmed ranking factor on mobile SERPs. If your mobile version hides content, blocks resources, or is unreadable on small screens, you are effectively invisible to most search traffic regardless of how good your desktop site looks.
What does the mobile-friendly test actually check?
It loads the page with Google's mobile crawler, then evaluates viewport configuration, text size (minimum 12px legible), tap target spacing (at least 48 CSS pixels apart), absence of horizontal scroll, and use of unsupported plugins like Flash. It also flags blocked CSS or JavaScript that prevents proper mobile rendering. The test does not measure speed or layout shift, those need separate Core Web Vitals tools. A pass here means the page is accessible on mobile, not that it is well-designed.
My responsive site failed the test, what could be wrong?
Common culprits are missing viewport meta tag, fixed-width elements that overflow on narrow screens, robots.txt blocking CSS or JavaScript files needed for rendering, popups or interstitials that cover most of the screen, and buttons placed too close together. Run the test, click "View tested page", and check the HTML and screenshot Google captured. Often the issue is that a third-party script blocks rendering on mobile only, or a CDN serves a different file to the Googlebot user agent.
Are AMP pages still required for mobile SEO in 2026?
No. Google removed the AMP requirement from Top Stories in 2021, and AMP is no longer favored over standard responsive pages. If your site is fast and passes Core Web Vitals, AMP adds no SEO value and creates maintenance overhead with two codebases. Many publishers have deprecated AMP entirely. Focus instead on a fast, responsive, mobile-first design with optimized images, lazy loading, and minimal JavaScript. AMP is now optional and best reserved for legacy implementations.
How do I fix tap targets that are too close together?
Mobile guidelines recommend touch targets at least 48 CSS pixels wide and tall, with at least 8 pixels of spacing. Common offenders are inline navigation links, close-buttons on modals, and pagination controls. Increase padding on links, switch inline lists to block layout on mobile via CSS media queries, and avoid placing dofollow icons within 10 pixels of each other. Test on a real device, not just a browser emulator, because thumb accuracy is the real failure mode.
Does failing the mobile-friendly test always mean a ranking penalty?
Not always a penalty, but a competitive disadvantage. Google does not impose a manual penalty for non-mobile-friendly pages, but it ranks them lower on mobile SERPs and may exclude them from mobile rich results entirely. If your audience is 70%+ mobile, even a partial failure can cut traffic in half. Fix the issues immediately, then re-submit the URL via Search Console's URL Inspection tool to trigger a re-crawl, which usually updates within 24-72 hours.
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