|Features||Microsoft Azure||Mirror Image|
|Instant Purge||Fully supported||Fully supported|
|Control panel||Fully supported||Fully supported|
|Origin Push||Not supported||Not supported|
|Origin Pull||Fully supported||Fully supported|
|Origin Shield||Not supported||Not supported|
|GZIP Compression||Fully supported||Fully supported|
|Custom Rules||Additional costs||Unknown|
|HTTP/2 Protocol||Not supported||Not supported|
|SPDY Protocol||Not supported||Not supported|
|Raw Access Logs||Not supported||Fully supported|
|Real time statistics||Additional costs||Fully supported|
|Online signup||Fully supported||Not supported|
|API||Purge, Configuration Management||Unknown|
|Custom CNAMEs||Fully supported||Unknown|
|Shared SSL Certificates||Fully supported||Unknown|
|Custom SSL Certificates||Not supported||Unknown|
|Wildcard SSL Certificates||Not supported||Not supported|
|Support||Azure support starting at €25 per month||Phone and Email support|
|Video On Demand (VoD)||Not supported||Fully supported|
|RTMP Streaming||Not supported||Fully supported|
|Multiple CDNs||Not supported||Not supported|
|CDN balancing tech||Not supported||Not supported|
|Storage||Azure storage||Not supported|
|Property||Microsoft Azure||Mirror Image|
|Global flat fee||N/A||N/A|
|NA/EU Traffic (low volume)||€0.0734 per GB||N/A|
|NA/EU Traffic (high volume)||€0.0253 per GB (500TB+)||N/A|
|APAC Traffic||€0.1164 per GB||N/A|
|LATAM Traffic||€0.2109 per GB||N/A|
|Extra costs||Premium features, Support||N/A|
Microsoft’s cloud computing platform Microsoft Azure includes a CDN service in their offering. The platform was released in 2010, initially named Windows Azure and renamed to Microsoft Azure in 2014.
Azure is an Infrastructure-as-a-Service (IaaS) solution, and next to a CDN they offer storage solutions, data management, compute and networking. Their IaaS solution is similar to Amazon Web Services (AWS) and Google Compute Engine (GCE). Just like Google, Azure offers free credit to first-time users of the platform to help them get started.
The Azure CDN service uses the networks of Akamai and Edgecast, though it is fully integrated with the cloud platform and offered under the Azure brand. Because the CDN service is offered as a part of the larger Azure IaaS ecosystem, it is easy-to-use for businesses who already use the platform. Other CDNs can be used in combination with Azure products as well, for example with their storage solution.
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.