jsDelivr is one of the biggest open source and free CDNs in the world.
We serve more than 140billion requests and 5PB of traffic per month.

Since jsDelivr is a free CDN we rely heavily on our sponsors to support the service. All of the traffic we serve is offered to us for free thanks to our CDN sponsors. We load-balance the traffic between them for better performance but it also allows us to avoid overloading a single CDN.

In case a CDN provider decides to stop sponsoring us we can quickly remove them from rotation and if needed replace them with other sponsors. We maintain a good relationship with the CDN industry overall.

Our main expenses include hosting of the origin and supporting infrastructure like APIs and log parsing, as well as part-time and freelancer developers and designers. At the moment these expenses are covered by Dmitriy A.

Learn more about our infrastructure in our infographic with more details provided in our main README

Our expenses include:

Infrastructure:

• Multiple dedicated servers with Hetzner and OVH that run our origin
• Cloud servers that run supporting services like Redis, MySQL and, log parsing
• Elastic Cloud for logging, monitoring, and APM
• AWS S3 and other S3 compatible services that host our persistent file storage and log streaming.

People:

We frequently hire freelancer developers and designers to help us build new features faster.

With your help we will be able to afford more resources to build, release and maintain even more advanced features!