Mobile-Friendly Test

Check whether any public page is set up for mobile — viewport, responsive CSS, responsive images, and legacy plugins — with a clear fix for every issue.

Or try an example:

Keep every page mobile-ready — sitewide.

A single-page check is a start. SEOJuicer's full audit checks mobile-friendliness, meta tags, and more across every page on your domain, not just one URL.

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How it works

Check any page's mobile-friendliness in three steps

No signup, no install — just paste a URL and get a clear, actionable report.

Enter a URL

Type in any public page you want to check — no signup needed.

We inspect it live

We read the viewport tag, CSS breakpoints, and image markup.

See your report

Get a score, what's missing, and exactly how to fix it.

Set the viewport correctly

width=device-width, initial-scale=1 is the baseline for any mobile-friendly page.

Use CSS breakpoints

@media (max-width: ...) rules let your layout adapt instead of forcing users to zoom and scroll sideways.

Serve right-sized images

srcset lets mobile devices download a smaller image instead of a full desktop-sized one.

FAQs

Frequently asked questions

Have questions about the mobile-friendly test? Here are the most common ones our users ask before getting started.

How does a mobile-friendly test actually work without a real phone?

This checks the static signals that determine mobile-friendliness — the viewport meta tag, whether the CSS includes responsive breakpoints, whether images use srcset/sizes, and whether the page relies on unsupported legacy plugins like Flash. It doesn't render the page visually like Google's own Mobile-Friendly Test does, but these are the same underlying signals that determine whether a page adapts to mobile screens.

Why does the viewport meta tag matter so much?

Without a viewport tag, mobile browsers render the page at a fixed desktop width (typically 980px) and then zoom out to fit the screen, making text tiny and forcing users to pinch-zoom just to read it. Setting width=device-width tells the browser to match the page's width to the actual screen width instead.

Should I disable pinch-to-zoom on my site?

Generally no. Disabling zoom with user-scalable=no or maximum-scale=1 can make your page look more "app-like," but it actively hurts accessibility for visually impaired visitors who rely on zooming to read content comfortably.

What are media queries and why do they matter for mobile?

Media queries (@media rules in CSS) let you apply different styles based on screen size — for example, stacking a multi-column layout into a single column on narrow screens. A page with no media queries at all often means the same fixed layout is forced onto every screen size, which tends to look cramped or broken on phones.

Why do responsive images matter for mobile SEO?

Without srcset and sizes attributes, a mobile browser downloads the exact same full-resolution image meant for a desktop monitor, wasting bandwidth and slowing down the page — which hurts both user experience and Core Web Vitals scores that factor into rankings.

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