|Purge All||Fully supported||Fully supported|
|Instant Purge||Fully supported||Not instant|
|Control panel||Fully supported||Fully supported|
|Origin Push||Unknown||Fully supported|
|Origin Pull||Unknown||Fully supported|
|Origin Shield||Fully supported||Fully supported|
|GZIP Compression||Fully supported||Fully supported|
|Custom Rules||Fully supported||Fully supported|
|HTTP/2 Protocol||Fully supported||Not supported|
|SPDY Protocol||Fully supported||Not supported|
|Raw Access Logs||Unknown||Fully supported|
|Real time statistics||Fully supported||Fully supported|
|Online signup||Fully supported||Not supported|
|Custom CNAMEs||Unknown||Fully supported|
|Shared SSL Certificates||Fully supported||Fully supported|
|Custom SSL Certificates||Fully supported||Fully supported|
|Wildcard SSL Certificates||Not supported||Unknown|
|Support||FAQ, Ticket, Chat support||
|Video On Demand (VoD)||Unknown||Fully supported|
|RTMP Streaming||Unknown||Fully supported|
|Multiple CDNs||Not supported||Not supported|
|CDN balancing tech||Fully supported||Not supported|
|Storage||Not supported||Additional costs|
|Global flat fee||$0.06 to $0.02 per GB||N/A|
|NA/EU Traffic (low volume)||N/A||N/A|
|NA/EU Traffic (high volume)||N/A||N/A|
StackPath is a CDN provider head quartered in Dallas, Texas and has multiple offices across the U.S. StackPath was created after a large investment from ARBY Partners. Since then Stackpath has aqcuired Highwinds, and MaxCDN.
StackPath is highly focused on internet security as a CDN, and is positioned as a Security-as-a-Service providing many built-in options including a Web Application Firewall, DDoS mitigation, and many physical security measures at their data centers.
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.