jsDelivr, the first and only free multi-CDN for open source projects are now using PerfOps FlexBalancer to load balance between their sponsoring CDNs. Until now, jsDelivr had been using Cedexis Openmix to achieve its Multi-CDN load balancing. After analyzing the ease of migration and benefits of FlexBalancer, jsDelivr decided that it was time for a change.

In the last post, Samuell (from the og-aws Slack group) figured out his negative TTL problems in Cloudfront. During that session, we actually solved two different problems. This post is to finish off that conversation and address the other problem, which was how to use the default error page in Cloudfront.

We are happy to announce the launch of a new tool on CDNPerf.com called CDN Price Calculator. With this new tool you will be able to calculate how much you would spend if you used any of the CDNs out there. The parameters are very flexible and allow you to enter the total bandwidth, the % per region, number of HTTP requests and more.

On May 7th 2018 Microsoft released a preview version of their own CDN under the name "Azure CDN". It will join Akamai and Verizon(Edgecast) in Azure, their cloud platform. Interestingly its the only cloud provider that resells third-party CDN services. Their direct competitors Google and Amazon both offer CDN services exclusively built on their own infrastructure.