Check and debug your site with these cross platform tools. Visit Dev Tools for the Modern Web. The cross platform tools include Webhint, Virtual machines for legacy testing and Microsoft Edge WebDriver.
A configurable hinting tool for the web.
Virtual machines for legacy testing
Test Microsoft Edge (EdgeHTML) and versions of IE8 through IE11 using free virtual machines you download and manage locally.
Microsoft Edge WebDriver
Automate testing of your website in Microsoft Edge and Microsoft Edge Legacy.