Mobile viewport

Why it matters

Without a viewport meta tag, phones show a zoomed-out desktop page. Google indexes the mobile version of pages, so mobile usability matters for everyone.

How to fix it

1. Add <meta name="viewport" content="width=device-width, initial-scale=1"> to the head.
2. Check that the layout adapts to small screens.

Check it with

• Mobile-Friendly Checker – Check the viewport, responsive design signals and mobile usability basics of a page.

Scoring: a passed check earns its full weight, a warning half and an error none. How the SEO score works

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