How to Lower CDN Bills While Improving Performance
July 19, 2015 | Robert GibbMulti-CDN has been a hot topic of discussion in 2015. It’s also often the path to reducing content delivery costs and gaining more confidence in your CDN strategy. But lower CDN bills and better performance? It seems too good to be true. However, since load balancing services have become available, it’s actually very possible, and very easy. Just take a look at how jsDelivr load balances 81 locations, 19 of them being MaxCDN edge servers. If you need a refresher on multi-CDN before we move forward, these resources will help:
How Do More Services Cost Less?To lower CDN costs and improve performance, you need at least two services in addition to the CDN you’re already using. First, you need a CDN that costs less than your current one. Second, you need a load balancing service to intelligently distribute traffic between your current CDN and new one. This new CDN should also have comparable or better performance and customer support than your original. Note: You can create your own load balancing system, but using ready-made load balancing services is usually preferred.
Example of Potential SavingsFor the sake of simplicity, below we’re going to show how much potential CDN savings you could earn given you use 100TB of CDN bandwidth per month. Keep in mind though that savings often increase when you use more bandwidth as part of a multi-CDN strategy. In the scenarios below, the original CDN, or CDN-1, is inspired by Fastly’s pricing and the CDN that results in cost-savings, or CDN-2, is inspired by MaxCDN’s pricing.
|CDNs used?||CDN-1 ($0.08/GB)|
|CDNs used?||CDN-1 ($0.08/GB) and CDN-2 ($0.04/GB)|
|Load balanced?||Yes (50/50 Split)|