Configuration > Spider > Rendering

This configuration allows you to set the rendering mode for the crawl:

  • Text Only: The SEO Spider will crawl and extract from the raw HTML only. It ignores the AJAX Crawling Scheme, and client-side JavaScript.
  • Old AJAX Crawling Scheme: The SEO Spider will obey Google’s now deprecated AJAX Crawling Scheme if discovered. If not present, it will crawl the raw HTML like default ‘Text Only’ mode.
  • JavaScript: The SEO Spider will execute client-side JavaScript by rendering the page in its headless Chrome browser, crawling and extracting from the rendered HTML for content and links.

Please note: To emulate Googlebot as closely as possible our rendering engine uses the Chromium project. The following operating systems are supported:

  • Windows 10
  • Windows 8 & 8.1
  • Windows 7
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2016
  • Ubuntu 14.04+ (64-bit only)
  • Mac OS X 10.9+

Please note: If you are running a supported OS and are still unable to use rendering, it could be you are running in compatibility mode.

To check this, go to your installation directory (C:\Program Files (x86)\Screaming Frog SEO Spider\), right click on ScreamingFrogSEOSpider.exe, select ‘Properties’, then the ‘Compatibility’ tab, and check you don’t have anything ticked under the ‘Compatibility Mode’ section.