Guide · Updated October 2026

How Do I Check If My Website Is Mobile Friendly?

How to test whether your website works well on phones, with free tools, a manual checklist and quick fixes for common mobile problems.

How Do I Check If My Website Is Mobile Friendly?

Short answer: open your site on a few real phones, run Google PageSpeed Insights on mobile, and use Chrome DevTools device mode. Check that text is readable, buttons are easy to tap and nothing scrolls sideways.

Free tools

  • PageSpeed Insights: mobile performance and Core Web Vitals.
  • Lighthouse in Chrome: performance, accessibility and best practices.
  • Chrome DevTools device mode: preview many screen sizes.
  • Search Console: Core Web Vitals reports from real users.

Manual checklist

  1. No sideways scrolling.
  2. Text readable without zooming.
  3. Buttons at least 44 pixels high and well spaced.
  4. Menu opens and closes properly.
  5. Phone numbers tap to call.
  6. Forms easy to fill on a small screen.
  7. Pages load quickly on mobile data.

Mobile-first by design.

SiteDrum builds fast, mobile-first websites from $99 setup and $15 a month, with hosting, security, Google setup and support included. Already have a site that is slow or broken? Try Website Rescue or run our free speed test.

Common fixes

  • Add a viewport meta tag.
  • Use responsive images and layouts.
  • Increase font sizes and tap targets.
  • Remove pop-ups that cover content.

The bottom line

Most customers see your site on a phone first. Test regularly and fix anything that makes mobile visitors work harder.

Frequently asked questions

Does mobile friendliness affect SEO?

Yes. Google uses mobile-first indexing.

What is a good mobile PageSpeed score?

90 or above is considered good.

Why does my site look different on iPhone?

Browsers render slightly differently; test on real devices.

Is a separate mobile site needed?

No. A responsive site adapts to all screens.

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