Hosting web-site at GitHub Pages is clever and nice! Sometimes that's not possible, but I still want a sub-100ms load time of my content world-wide, including retina-ready images.
CDN (http://en.wikipedia.org/wiki/Content_delivery_network) is exactly for that and more, like DoS protection.
We'll research popular options in crowded CDN space, we'll move a website front-page (or two) to the network. We'll check it is really better than stuffing everything on the under-desk server.
Bring a laptop, optionally with test subject - a website to improve page load-times of.
Exclusive content: a CDN the Twitter uses, and video CDN -- made in Latvia.