Enter a URL to scan its real HTML for the technical signals that determine mobile usability — instantly, no AI needed.
Mobile-Friendly Test fetches a real, live copy of any page and scans its actual HTML for the core technical signals that determine mobile usability — a proper viewport tag, absence of outdated plugins like Flash, responsive CSS signals, and readable font sizing. It returns a score, a pass/warn/fail checklist, and the raw viewport tag found on the page. This is a static technical scan rather than a full visual rendering test like Google's official Mobile-Friendly Test, so use it as a fast first check and confirm final results in Google Search Console.