We’ve been using CloudFlare for a few weeks and am very impressed. Every web app should use CloudFlare
CloudFlare provides a reverse-proxy service that protects your site from DDoS attacks, caches assets into it’s robust CDN, delivers your content via SPDY and has dozens of other protections and optimization.
Features they list include:
– Distribute your content around the world so it’s closer to your visitors (speeding up your site).
– Web pages with ad servers and third party widgets load snappy on both mobile and computers.
– Protect your website from a range of online threats from spammers to SQL injection to DDOS.
– Get insight into all of your website’s traffic including threats and search engine crawlers.
Watch the video or read more at cloudflare.com