It's a real comfort not having to depend on others when it's our reputation that's at stake. Our servers are spread across a mixture of cloud and traditional hardware infrastructure, between Amazon's EC2, Linode, and Bytemark.
In recent years, the emergence of cloud computing has levelled the playing field, meaning that anyone can have instant, virtually limitless, on demand, processing power and disk space on tap. This has paved the way for services which weren't previously possible to anyone but the largest corporations with deep pockets.
This on demand flexibility means that we can pull servers seemingly out of thin air to scale up and down to meet the varying needs of your application as needed. How cool is that?