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How does mobile-friendliness affect SEO?

Short answer

Google indexes and ranks the mobile version of your site, so mobile is the version that counts. If your phone layout hides content, loads slowly or makes buttons hard to tap, rankings and leads suffer. Most local searches happen on phones, so a good mobile page also decides who gets the call.

In this answer
  1. 01Mobile-first indexing in plain words
  2. 02What a mobile-friendly page needs
  3. 03Why it decides leads, not just rankings
  4. 04How to test your pages

Mobile-first indexing in plain words

Google uses the mobile version of a page's content for indexing and ranking. Say your desktop page has detailed service copy, but the phone version hides it behind tabs. Google may never see that copy. Google asks site owners to keep the same content, headings, structured data and title on both versions.

What a mobile-friendly page needs

  • The same content on phones as on desktop
  • Text readable without zooming
  • Buttons big enough to tap with a thumb
  • A phone number that starts a call when tapped
  • No pop-ups that cover the page on arrival
  • Fast loading on a normal cellular connection

Google's page experience guide names display quality on phones and avoiding intrusive interstitials as parts of a good experience.

Why it decides leads, not just rankings

A local searcher on a phone wants one of three things fast. They want to call, get directions or book. A hidden phone number, a long form or a broken map sends them back to the results. They pick the next business.

Good example. A plumber's mobile page shows the service, the area served and a tap-to-call button on the first screen. A short form sits below the reviews.

Bad example. The same page loads a desktop-sized image slider, then a newsletter pop-up, then a phone number that does nothing when tapped.

How to test your pages

Run your main service pages through PageSpeed Insights, which tests a mobile view by default. Then open each page on your own phone and try to call, book and find your address. If any of those takes more than a few seconds, fix it first.

See how site speed affects SEO. Our web design team designs every page for phones first.

Keep reading

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