How to Make Your Website Mobile-Friendly

Short answer

If you built your site on Squarespace, Wix, or a modern WordPress theme, it's already mobile-friendly. If it's an older custom-built site, you likely have a problem — and it's hurting your Google rankings.

How to check if your site is mobile-friendly

Google retired its standalone Mobile-Friendly Test at the end of 2023, along with the Mobile Usability report in Search Console. Use these instead:

PageSpeed Insights — enter your URL and read the Mobile tab. It runs Lighthouse and flags tap targets that are too close together, text that is too small, and content wider than the screen.
Chrome DevTools — open your site in Chrome, press F12, then click the device-toolbar icon to preview it at phone widths.
Your own phone — the check most people skip. Load the site on a real handset and try to tap every button and complete every form.

Most common mobile problems

Text too small to read — font size below 16px
Buttons too close together — hard to tap on a phone
Content wider than screen — horizontal scrolling required
Images not scaling — images are fixed-width and overflow on small screens
Pop-ups covering content — Google penalizes intrusive interstitials on mobile

How to fix it

If you're on Squarespace, Wix, or Showit: Use their built-in mobile editor to preview and adjust. These platforms handle most mobile issues automatically.

If you're on WordPress: Switch to a mobile-responsive theme. Most modern themes (Astra, GeneratePress, Kadence) are responsive by default.

If you have a custom-built site: You need a developer to add responsive CSS or rebuild using a modern framework.

Why it matters for SEO

Google uses mobile-first indexing — meaning it crawls your mobile site, not your desktop site, to determine your search rankings. A poor mobile experience directly hurts where you appear on Google.

Short answer

How to check if your site is mobile-friendly

Most common mobile problems

How to fix it

Why it matters for SEO

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