Free account · 3 live checks/day

Mobile SEO Audit

Enter a URL: the tool reads the page's HTML and spots mobile defects detectable without rendering it, then adds the PageSpeed mobile result when available.

Privacy and cost

This tool runs a live check on our servers. Free accounts get 3 live checks per day in total across all such tools. We keep your report in your account so you can delete it any time.

How it works

The page is downloaded and its HTML analysed: viewport, fixed widths, font sizes, tap targets, srcset images and obsolete plugins.
If the PageSpeed key is configured, a mobile Lighthouse test runs in parallel and is shown separately, labelled as lab data.
Each point is classified (error, warning, notice) with the affected snippet.

Example

A page with viewport "width=1024, user-scalable=no" and a "width:900px" block: the report flags the fixed width, blocked zoom and horizontal scroll risk.

What the result means

This is static analysis: the page is not rendered, and external CSS and JavaScript are not evaluated. Hints (tap targets, fonts) are leads, not measurements. For a real test use a device or a Lighthouse render.

Common problems this tool helps with

A page with no viewport tag, shown as a shrunken desktop layout.
Fixed-width elements wider than the screen that cause horizontal scrolling.
Disabled zoom, which hurts accessibility.
Images without srcset served at full size to phones.

Frequently asked questions

Does it replace testing on a phone?

No. It analyses the HTML only: it detects likely defects but sees neither external CSS nor the final render.

Where does the PageSpeed score come from?

From a Lighthouse lab test run by Google (mobile simulation). It only appears when the service is configured and does not express real visitor experience.

Does Google still run a mobile-friendly test?

Google retired its dedicated test and report; the viewport tag and a responsive layout remain good practice.