They are referring to Netcraft survey http://news.netcraft.com/archives/2015/04/20/april-2015-web-server-survey.html http://news.netcraft.com/archives/2015/04/2

They are referring to Netcraft survey http://news.netcraft.com/archives/2015/04/20/april-2015-web-server-survey.html http://news.netcraft.com/archives/2015/04/20/april-2015-web-...