Google Cloud CDN is available globally and supports various load balancers available in different regions around the globe, so I find Google Cloud CDN as one of the best choices for CDN as it serves globally and it is really fast, safe, and secure. It might be not suitable for you if you do not have any technical background.
OnApp CDN is great for virtually any site with a desire or requirement to offload processing resources to a content delivery network in general. The OnApp CDN is one of the largest, if not largest CDNs on the planet and is well equipped to handle virtually any type of file distribution, including video. Video distribution POPs on the OnApp CDN are less available because each host that offers video has special requirements they may or may not be willing to get involved with. If you plan to distribute video on OnApp CDN first check if the number of POPs available for serving video suit your needs
The intelligent categorization and management of site content cache in Google Cloud CDN is unique and offers the best results with simple settings.
It has powerful servers in all geographical regions of the world and the speed of the site will increase many times for the customer with smart routing.
It has AnyCast IP feature and website receives a single global IP address. In this case, the site loads at the same speed worldwide.
There is not really an interface for managing rules directly, compared to market leaders, Google's implementation is probably strong on the technical side but for the average user it might be lacking. There are no advanced features which can be compared to what other leaders in the CDN sector are providing or they can be achieved but with high implementation cost and usage of other products in the Google Cloud suite
I didn't have the need to use support from Google when I was either testing or setting up my website. Information was easily found by searching online if I needed to, and the options that I needed to install or enable were there on the setup page. Honestly, I was a former systems administrator so most of this stuff is not challenging for me.
We have limited software developers and don't have the need for a big cloud service provider along with their costs. Google Cloud CDN brings to usr, reliability and brand familiarity. Google Cloud CDN also doesn't bother us with pitches or 1000 emails about the products. We went and signed up for it, without dealing with a pushy salesperson.
We compared VMware for its virtualization capabilities and ended up deciding on OnApp as the UI was more intuitive for less technical support staff, which meant that our customers would have more staff available to help them with cloud related issues. We also checked our Akamai specifically for CDN however again the OnApp platform seemed simpler and less expensive to leverage, and with the added benefit that we had more control of the CDN 'in-house' than using a fully third party platform
OnApp in general has been a good investment, though in the early days this was a questionable result as stability was nothing like what it is today. Things have gotten much better over the years and I would anticipate OnApp to generate ROI so long as customers are looking for cloud and CDN solutions in general. I'm not sure that investing in OnApp as a hosting provider specifically for the CDN capability will generate any positive return, but the OnApp system as a whole has the features required that most should be able to make a return on.
