Website & SEO

Mobile-Friendly Test

Check the mobile-readiness signals in a page's HTML: viewport tag, zoom accessibility, charset and layout-shift-prone images. Free, live.

Test mobile-friendliness

Enter a URL. We check the mobile-readiness signals in the page's HTML.

What this mobile-friendly test does

Checks the viewport meta tag
Flags disabled zoom (accessibility)
Confirms width=device-width is set
Checks character encoding
Flags images without dimensions (layout shift)
Runs live server-side, no CORS limits

Common use cases

  1. 1Diagnosing a desktop-zoomed mobile page
  2. 2Checking accessibility of zoom settings
  3. 3Auditing a template for mobile basics
  4. 4Reducing mobile layout shift
  5. 5Confirming a responsive setup's meta tags
  6. 6Quick mobile sanity check before launch

Related tools

Page speed testCore Web Vitals checkerMeta tag auditorSEO content analyzerHTTP header inspectorCanonical tag checker

About mobile-friendliness

Most web traffic is mobile, and Google indexes the mobile version of your site first. The foundation of a mobile-friendly page is the viewport meta tag with width=device-width, which tells the browser to match the layout to the screen instead of rendering at desktop width.

This test inspects the mobile signals present in the HTML — the viewport tag, whether zoom is (wrongly) disabled, the character encoding, and images that lack dimensions and cause layout shift on slow mobile connections. Because it reads the HTML rather than rendering the page, use it alongside a real device or emulator test for the complete picture.

More Free Tools Where This Came From

This utility is one of dozens of free, no-login tools for DNS, email, SEO and developers — all instant and private.

See All ToolsTalk to Our Team

HostCloud.in  ·  Pune, India  ·  Serving 34,987+ Websites Since 2020

FREQUENTLY ASKED QUESTIONS

Got Questions? We Have Answers.

What does the mobile-friendly test check?

It fetches the page and inspects the mobile signals in its HTML: the viewport meta tag, whether zoom is disabled, the character encoding, and images without dimensions that cause layout shift.

Why is the viewport tag so important?

Without <meta name="viewport" content="width=device-width">, the page renders at desktop width and appears zoomed out on phones. It is the foundation of a mobile-friendly page.

Does it render the page?

No. It reads the HTML signals rather than rendering, so use it alongside a real device or emulator test for the full picture.

Is it live?

Yes. The page is fetched server-side at the moment you test.