Hosting that is
Here at Iridium Hosting we are kind of speed freaks. GT Metrix, Web Page Test and Pingdom’s speed tests are always in our browser’s most visited sites.
Because of this speed obsession our WordPress hosting uses only Solid State Disk Drives, the latest version(s) of PHP and LiteSpeed Web Server. Some tests show this setup 20 times faster than a standard web host running Apache.