Check if your site renders properly on phones and tablets.
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Mobile traffic is now the majority on most sites, and Google uses mobile-first indexing — if a page doesn't work on phones, it doesn't rank. This tester fetches your page with a mobile user agent and grades it against the structural signals Google's own Mobile-Friendly Test checks: viewport meta tag, scalable text, responsive media queries, no Flash, and no oversized fixed-width elements. Run it after every template change to catch regressions early.
Type or paste the target you want to inspect into the input field at the top of the page.
Click the check button — the tool queries live data sources and returns results in seconds.
Review each finding: status, score, and the reason behind every warning are listed line by line.
Follow the linked remediation guides to fix issues, or copy the report to share with your team.
When something in your stack misbehaves, half the battle is figuring out whether the problem is you, the network, or the other side. Mobile Friendly Test gives you a fast, opinionated readout so you can rule things in and out in seconds. Because the check runs on live infrastructure and reports raw results — not marketing-safe summaries — you can trust what you see and act on it. Toolzer's design philosophy is simple: privacy-first (no tracking, no accounts), performance-first (the page is interactive in under a second on a 3G connection), and honesty-first (no fake ratings, no dark patterns, no upsells). Mobile Friendly Test follows the same rules as every other utility on the site. You can bookmark this page, share the URL with a colleague, or pin it to your browser's toolbar — the experience will be identical every visit, and it will keep working even if you're on airplane Wi-Fi. Real people use this tool for real work — freelancers cleaning up client deliverables, sysadmins triaging tickets, students finishing assignments — and it is tuned for those workflows, not for demo videos.
It checks the same structural signals offline, without Google's index. Google's tool also renders the page in a headless Chrome — for a final pre-launch check, run both.
Your phone may have an extra-wide viewport or zoom-friendly defaults. Test on a real mid-range Android to see what most users experience.
No. It analyses the HTML the server returns. SPAs that ship an empty shell will score on the shell, not the rendered app.
No. Only public URLs work — the fetch is unauthenticated.
No. Every utility on Toolzer is free, anonymous, and works in any modern browser without registration.
Yes. Whenever the tool can produce an answer entirely in the browser, the data never leaves your device.
Yes. The interface is fully responsive and works on iOS Safari, Android Chrome, and every modern mobile browser.
Yes. Every Toolzer page has a clean permanent URL you can bookmark or share.
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