|Purge All||Fully supported||Fully supported|
|Instant Purge||Not instant||Fully supported|
|Control panel||Fully supported||Fully supported|
|Origin Push||Fully supported||Not supported|
|Origin Pull||Fully supported||Fully supported|
|Origin Shield||Fully supported||Fully supported|
|GZIP Compression||Fully supported||Fully supported|
|Custom Rules||Fully supported||Fully supported|
|HTTP/2 Protocol||Not supported||Fully supported|
|SPDY Protocol||Not supported||Not supported|
|Raw Access Logs||Fully supported||Not supported|
|Real time statistics||Fully supported||Fully supported|
|Online signup||Not supported||Fully supported|
|API||Unknown||Purge, Statistics, Configuration Management|
|Custom CNAMEs||Fully supported||Fully supported|
|Shared SSL Certificates||Fully supported||Fully supported|
|Custom SSL Certificates||Fully supported||Additional costs|
|Wildcard SSL Certificates||Unknown||Additional costs|
|Video On Demand (VoD)||Fully supported||Not supported|
|RTMP Streaming||Fully supported||Not supported|
|Multiple CDNs||Not supported||Not supported|
|CDN balancing tech||Not supported||Additional costs|
|Storage||Additional costs||Not supported|
|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.
Incapsula Inc. provides a variety of CDN services, from the network itself to security, load balancing, failover solutions and DDoS protection. The company spun out from data security company Imperva in 2009. Incapsula launched Botopedia in 2012, a directory that includes community-sourced information about bots.
At the core of Incapsula’s feature offering lies the content delivery network and a variety of security features such as web application firewall (WAF) and DDoS mitigation.
Incapsula composes comparison tables of its own, which can be viewed on their website - providers they compare themselves to are Akamai and CloudFlare. In the comparison tables they dive deeper into the various security features within the content delivery ecosystem.
Like most other CDN providers, Incapsula integrates well with a variety of Content Management Systems (CMS) and also offers a downloadable extension on their website for Joomla. The extension improves security and performance for Joomla. Other security solutions for third parties offered by Incapsula are targeted at clients hosting with Rackspace, Microsoft Azure and Amazon AWS. All three of these also offer their own CDN solution.