|Purge All||Fully supported||Unknown|
|Instant Purge||Unknown||Fully supported|
|Control panel||Fully supported||Fully supported|
|Origin Push||Not supported||Not supported|
|Origin Pull||Fully supported||Fully supported|
|Origin Shield||Unknown||Not supported|
|GZIP Compression||Fully supported||Fully supported|
|HTTP/2 Protocol||Fully 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||Purge, Statistics, Configuration Management||Unknown|
|Shared SSL Certificates||Unknown||Unknown|
|Custom SSL Certificates||Unknown||Unknown|
|Wildcard SSL Certificates||Unknown||Not supported|
|Support||24⁄7 Phone and Email support||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||Fully supported||Not supported|
|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|
CDNetworks has been around since 2000, and is currently headquartered in Seoul. The company has raised capital with Shinhan Private Equity, Goldman Sachs and Oak Investment Partners, and acquired CDN competitor Panther Express in 2009. The company was bought by Japanese Telco KDDI in 2011. The provider has 169 points of presence (PoPs) worldwide.
CDNetworks offers the usual services within the CDN ecosystem, such as DDoS protection, cloud storage, Web Application Firewall (WAF), managed DNS with load balancing and video acceleration.
The CDN provider has a strong presence in emerging Internet markets such as China, Russia, India and South America. The company operates in mainland China and has been doing so for over 10 years. Currently, CDNetworks has 21 PoPs within China, which are mostly concentrated in the east of the country. The company is licensed by the Chinese government, and their CDNetworks China Acceleration service can be an alternative to homegrown CDN providers ChinaNetCenter and ChinaCache.
Similar to China acceleration, CDNetworks has a special focus on Russia. With 16 PoPs across the country, and a partnership with network operator MegaFon, CDNetworks offers a broad range of delivery services in Russia.
Founded in 1997, Mirror Image Internet is a seasoned service provider with a large portfolio of web and hosting services. The company is principally owned by Xcelera Inc., and is headquartered in Massachusetts, US and has an European sales office in London.
The network map of Mirror Image is not made public on their website, and there is no information on the number of points-of-presence (PoPs). Based on performance comparisons, we think Mirror Image uses the Highwinds network, and add their own intelligence. Note that Mirror Image uses the term “Content Access Point (CAP) facilities” to refer to their PoPs.
Mirror Image Internet hold a variety of patents to protect its core technology. These concern Internet communication, web serving and the distributed selection of content servers.
The company offers features for video streaming and video-on-demand (VOD) through their miPUBLISHER platform. Large file download is also supported. Their control panel ClearVue Control Center includes real-time analytics and the necessary tooling to manage the CDN.