When comparing Fastnow vs Microsoft Azure, the Slant community recommends Microsoft Azure for most people. In the question“What are the best content delivery networks (CDNs)?” Microsoft Azure is ranked 10th while Fastnow is ranked 16th. The most important reason people chose Microsoft Azure is:
Most, if not all, of the major cloud PaaS providers offer a Linux variant to host your applications. Windows Azure, being a Microsoft product obviously, supports Windows in addition to Linux.
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Pros
Pro Enhances your website performance and delivers your contents to end users significantly and greatly
Pro Supports running Windows Server
Most, if not all, of the major cloud PaaS providers offer a Linux variant to host your applications. Windows Azure, being a Microsoft product obviously, supports Windows in addition to Linux.
Pro Linux Instances
The Azure platform has been supporting Linux VMs for a while now and has Linux distributions readily available in the catalogue.
Pro Free Tier
Microsoft Azure offers a Free Tier option that allows you to spawn a BST-1 instance that has 750 free hours.
Cons
Con Expensive
Even though in the context of Pay-as-you-go services, it's cost effective, but monthly pricing for these services are quite higher than competitors.