Looks like ASP.NET from the .aspx file extensions See Netcraft: http://toolbar.netcraft.com/site_report?url=http://allrecipes.com http://toolbar.netcraft.com/s

Looks like ASP.NET from the .aspx file extensions See Netcraft: http://toolbar.netcraft.com/site_report?url=http://allrecipes.com http://toolbar.netcraft.com/site_report?url=http://allrecipe... Presumably this is some of the hardware they are using: http://www.f5.com/products/big-ip/ http://www.f5.com/products/big-ip/ Content Delivery Network for media (images, css, js): http://toolbar.netcraft.com/site_report?url=http://images.media-allrecipes.com http://toolbar.netcraft.com/site_report?url=http://images.me... http://www.limelightnetworks.com/ http://www.limelightnetworks.com/ You are correct, it is quite fast.