Since I do WordPress Optimization, and I generally, only use Linode, DO or Amazon, I find it odd, that after doing 8 years of server administration and custom Nginx installs, that I have never found "A Web Host" that even comes close to offering the type of "Real Performance" hosting that I would want! Luckily, I have been able to do this myself for years. Aside from that, Pagely uses Amazon, WP Engine uses Linode.com.. I find it extremely terrible, that "Proprietary Cache" systems are used to lure in customers along with the managed hosting.. WP Engine's Cache system, has had broken HTML output for over a year.. Why anyone would pay to host a business on that platform, is beyond me! 3 simple Linux commands, and 1 WordPress plug-in can make any WordPress website, just as secure as what every known WordPress web host claims! It really isn't rocket science, but they want you to believe it is!