Open the capture controls
- Open the page in desktop Chrome. Choose the browser menu → More Tools → Developer Tools.
- Click Toggle device toolbar, then set Responsive dimensions or select a device.
- Open More options in the device toolbar and choose Capture a full size screenshot.
Google documents opening DevTools and the full-size screenshot action. Capture screenshot in the same menu means the viewport, so choose the full-size action for a long page.
Inspect the width and page bottom
Set the width before capturing because text wrapping changes page length. Device Mode approximates mobile appearance; it does not run the page on a physical phone. Wait for important content to appear, then inspect the saved image’s bottom.
For another route, use the public URL capture tool. Missing blocks? Read loading and incomplete screenshots.