|Purge All||Fully supported||Fully supported|
|Instant Purge||Not instant||Fully supported|
|Control panel||Fully supported||Fully supported|
|Origin Push||Fully supported||Fully supported|
|Origin Pull||Fully supported||Fully supported|
|Origin Shield||Fully supported||Not supported|
|GZIP Compression||Fully supported||Fully supported|
|Custom Rules||Fully supported||Fully supported|
|HTTP/2 Protocol||Not supported||Not supported|
|SPDY Protocol||Not supported||Not supported|
|Raw Access Logs||Fully supported||Fully supported|
|Real time statistics||Fully supported||Fully supported|
|Online signup||Not supported||Not supported|
|API||Unknown||Purge; Add, update and remove properties (Limelight Orchestrate Video API)|
|Custom CNAMEs||Fully supported|
|Shared SSL Certificates||Fully supported||Unknown|
|Custom SSL Certificates||Fully supported||Additional costs|
|Wildcard SSL Certificates||Unknown||Additional costs|
||24⁄7 Phone and Email support|
|Video On Demand (VoD)||Fully supported||Fully supported|
|RTMP Streaming||Fully supported||Fully supported|
|Multiple CDNs||Not supported||Not supported|
|CDN balancing tech||Not supported||Not supported|
|Storage||Additional costs||Additional costs|
|Global flat fee||N/A||N/A|
|NA/EU Traffic (low volume)||N/A||N/A|
|NA/EU Traffic (high volume)||N/A||N/A|
Level3 Communications is an Internet Service Provider (ISP) and a provider of telecommunication services. The company was founded in 1885 and is currently headquartered in Colorado, in the United States. The Level3 brand is well-known; the company operates a large, physical network of the Internet and offers a wide range of networking services. Level3 is the network, and it owns a Tier 1 backbone and operates its own points-of-presence (PoPs). One notable customer of Level3 is Netflix.
Level3 has made some notable acquisitions, including companies such as Black Lotus (DDoS protection), TW Telecom (business Internet solutions), Genuity (AS1) and the CDN services business of Savvis - a subsidiary of CenturyLink that provides hosting and colocation services. The CDN was acquired in 2006 and is run by Level3 to this day. In 2016 Level3 has been acquired by CenturyLink.
Additional CDN-related services by Level3 include DDoS protection, SSL, Encryption, Geo Blocking, (live) video streaming and website acceleration.
Together with Fastly, CloudFlare, Highwinds, Akamai and EdgeCast, Level3 is part of the Google Cloud Platform CDN Interconnect program. The interconnection agreement between the backbones of both parties will benefit customers on both sides; traffic over these interconnects enjoys reduced latency and increased reliability compared to the public Internet. Clients using a Google Cloud origin receive a discount to their egress traffic when peering with Level3 or any other CDN that is part of the collaboration.
Level3 does not publish customer information. CDN overview has located some of customers of the CDN service, such as CloudVPS. We’ll keep the list updated.
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.