My blog http://blog.higg.im/ sits on a private NGINX server and is proxied with a CDN to address traffic spikes. I used to think my blog didn't get that much traffc and a CDN seemed like overkill. I never liked serving a site from the raw Apex IP because it's too easy to boot offline (DDOS'd).
I wrote about this setup on the blog:
"Why I run this blog on MaxCDN and Ghost"
http://blog.higg.im/2015/02/10/why-i-run-this-blog-on-maxcdn...
And very worth it getting a site off the apex too:
http://blog.higg.im/2014/03/10/getting-jque-re-off-the-apex/