|Purge All||Fully supported||Fully supported|
|Instant Purge||Not supported||Fully supported|
|Control panel||Fully supported||Fully supported|
|Origin Push||Fully supported||Fully supported|
|Origin Pull||Fully supported||Fully supported|
|Origin Shield||Not supported||Not supported|
|GZIP Compression||Unknown||Fully supported|
|Custom Rules||Fully supported||Fully supported|
|HTTP/2 Protocol||Not supported||Not supported|
|SPDY Protocol||Not supported||Not supported|
|Raw Access Logs||Not supported||Fully supported|
|Real time statistics||Fully supported||Fully supported|
|Online signup||Not supported||Not supported|
|API||Purge||Purge; Add, update and remove properties (Limelight Orchestrate Video API)|
|Custom CNAMEs||Not supported|
|Shared SSL Certificates||Unknown||Unknown|
|Custom SSL Certificates||Additional costs||Additional costs|
|Wildcard SSL Certificates||Not supported||Additional costs|
|Support||Email and Phone support||24⁄7 Phone and Email support|
|Video On Demand (VoD)||Fully supported||Fully supported|
|RTMP Streaming||Not supported||Fully supported|
|Multiple CDNs||Not supported||Not supported|
|CDN balancing tech||Not supported||Not supported|
|Storage||Additional costs||Additional costs|
|Global flat fee||
|NA/EU Traffic (low volume)||N/A||N/A|
|NA/EU Traffic (high volume)||N/A||N/A|
Universal CDN or UCDN is a content delivery network by XBT Holding, a global hosting and network solutions provider headquartered in Luxembourg. The company offers a wide array of services, which includes file hosting.
The network map of UCDN is relatively small: according to our information the company has 12 points of presence (PoPs).
Limelight Networks is an Arizona-based CDN provider that owns and operates its own content delivery network. The company was founded in 2001 and has offices in the US, Europe and Asia.
Limelight offers regular CDN services for static content, website acceleration, video streaming (Limelight Orchestrate) and cloud storage. Some of the services in the Limelight portfolio came to be from a variety of acquisitions done by the company in the past. Acquired companies include AcceloWeb (website acceleration), Kiptronic (video) and Delve Networks (video).
In 2006, the CDN provider was sued by Akamai Technologies, Massachusetts Institute of Technology (MIT) and later by Level3 over alleged patent infringements. In 2015, after a long string of decisions, came an end to the back-and-forth between Akamai and Limelight: Limelight was held liable for direct infringement of an Akamai-held patent by the US Court of Appeals for the Federal Circuit. In response to the ruling, Limelight Networks (NASDAQ:LLNW) fell greatly.
As of today, Limelight is still fighting a portion of the August 2015 decision, prolonging an already long-standing dispute against Akamai.
Limelight serves, or has served notable customers such as Disney, EA Sports, MySpace, Harpo Productions, MTV, Nintendo, Heineken and Carrefour. With the exception of the latter two, these customers are seemingly no longer with Limelight.