A Content Delivery Network (CDN) is a group of geographically-distributed servers which deliver static contents with best possible latency. CDNs are key attribute for web performance. But all CDNs can’t best maintain high performance level all the time. They may become out of service, have worse latency or encounter any other problems. With multi CDN architecture you can have stable high performance level and %100 uptime.
Traditional Web Hosting
Most web sites deliver both dynamic and static content from single server to all globe. This method might be still useful for web sites that have limited visitors and when visitors comes from small geographical region that close to the server.
However, if you are targeting visitors from all around the world, this method starts to encounter high latency due to distance from the server.
Also, if your website have high volume of visitors, delivering static content from the server cause performance issues and errors.
To read more about how CDN effect your servers check out this blog post about ‘ CDN Effect on Server Performance’
Single/Standard Content Delivery Network
Multi Content Delivery Network
Multi CDN is combination of 2 or more CDN networks. image4io is uses multi CDN strategy to deliver content more efficiently and with more robust architecture.
Benefits of Multi CDN
Redundancy and Robustness
With Multi CDN architecture, image4io is providing %100 SLA on CDNs. Even one of our CDN goes down, traffic gets rerouted to another to another network. This way our customer will have zero downtime.
CDN providers geographic coverage often varies. Some of them have better presence in a region according to others, or some of them don’t have any cache server in some regions. Multi CDN strategy enables us to cover all globe by using multiple CDN providers according to their presence on different regions.
Lower Latency and Higher Performance
image4io uses Multi CDN architecture to deliver content with lower latency. We continuously testing CDN providers from different regions. According to test results we are routing requests to best performing CDN from that region.
Some cache server may have difficulties on peak traffic times. We are distribute this high traffic to different cache servers. Thus, we are preventing low performance issues.
With image4io’s managed Multi CDN architecture our cutomers have %100 uptime and better performance.
- Icons that are used on illustrations are from flaticon.com
Originally published at https://image4.io on June 6, 2019.