CloudFlare

Very affordable but many features and often unexpected benefits. The initial goal was to secure several websites and prevent DDoS attacks, but CloudFlare also includes a great DNS service and Content Delivery Network. The CDN drastically improved the performance of our websites. Recently we tried using it to optimize the performance of our on-premise SugarCRM instance. We didn't expect it to work but it did, and with very little effort, and the gains were incredible: http://www.markandersononline.com/blog/optimize-sugarcrm-premise-cloudflare-cdn/ Short version... average page load times were cut almost in half making the CRM much easier to use and allowing us to delay an expensive server upgrade.

Some people have complained about the ticket based support system. You typically wait a couple of hours for a response but the responses you get are always highly informed and very helpful. I consider this much better than the support with many other service providers – especially when you consider the very low cost of this product.

CloudFlare does a lot of things – DNS, CDN, DDoS prevention, site optimization very well and very affordably.