Limelight has expanded its offering with a cloud security suite. The goal of the suite is to detect and stop application attacks in real time, protecting websites and web applications from common threats and specialized attacks. The suite will be integrated in the current CDN offering of Limelight.
Key features of the suite are:
DDoS Attack Protection and Mitigation Web Application Firewall (WAF) Digital Rights Management (DRM)
A complete overview of the suite can be found here
Looking at the offering itself, it has many similarities with the offering of Incapsula.