dynamic code scan on Sauce's cloud right from the modern.IE website. This returns a screenshot and more detailed report of your site that can help improve its compatibility and performance.
To instantly check how your own website fares in Internet Explorer, visit the modern.IE homepage and enter a URL in the Compactor Inspector scan bar. And to learn more about this modern.IE update as well as others announced today, visit the IEBlog. Happy (Internet Explorer) testing!