The site allows you to specify a number of criteria upon which the results will be based, such as brand, version(s) etc. See image below.
Once the criteria has been specified, pressing the 'Compatibility tables' button will bring up the following page, which shows all the relevant info.Note the areas I've highlighted in red. They are above the section describing
the capability being compared and provide links to other relevant info.
Sometimes they also point to workaround for IE6 etc.