Window size

Configuration > Spider > Rendering > JavaScript > Window Size

This sets the viewport size in JavaScript rendering mode, which can be seen in the rendered page screen shots captured in the ‘Rendered Page‘ tab.

For both ‘Googlebot Mobile: Smartphone’ and ‘Googlebot Desktop’ window sizes, the SEO Spider emulates Googlebot behaviour and re-sizes the page – so it’s really long to capture as much data as possible. Google will stretch the page, to load and capture any additional content.

The SEO Spider will load the page with 411×731 pixels for mobile or 1024×768 pixels for desktop, and then re-size the length up to 8,192px. This is the limit we are currently able to capture in the in-built Chromium browser. Google are able to re-size up to a height of 12,140 pixels.

In rare cases the window size can influence the rendered HTML. For example some websites may not have certain elements on smaller viewports, this can impact results like the word count and links.

For other device window sizes, the viewport chosen will be used for rendering any content, links and screenshots – without resizing to a longer viewport.