Check whether your page is properly optimized for phones and tablets, with a full breakdown and fixes
Mobile-friendliness is just one piece of SEO health — run a complete audit to check speed, meta tags, broken links, and more.
Run Free Website AuditMore than half of all web traffic now comes from phones, and Google has used mobile-friendliness as a ranking factor for years — a page that's hard to use on a phone loses visitors and search visibility at the same time. This tool fetches your page live and checks the signals that actually determine whether a phone can render it properly: whether a viewport meta tag is present and correctly configured, whether any elements are hardcoded to a fixed desktop width that forces horizontal scrolling, whether your CSS includes responsive media queries that adapt the layout to smaller screens, whether pinch-to-zoom has been accidentally disabled, whether your base text size is legible without zooming, and whether any Flash or plugin-based content is present, since none of that runs on mobile browsers at all. Each check is scored and combined into a single 0–100 score with a pass/fail verdict, so you know at a glance whether your page is mobile-ready and exactly what to fix if it isn't.