Translation guide
A system of distributed servers that deliver web content to users based on their geographic location.
CDN
content delivery network
Most common in technical contexts; the full phrase コンテンツデリバリーネットワーク is also used.
The standard technical term for a content delivery network in IT contexts.
The direct loanword phrase, widely understood in technical fields. Often abbreviated as CDN.
このサイトはコンテンツデリバリーネットワークを使っています。
This site uses a content delivery network.
The standard abbreviation, pronounced シーディーエヌ. Used in both spoken and written technical Japanese.
CDNを導入して、サイトの速度が向上しました。
We implemented a CDN and improved the site speed.
In Japanese IT conversations, CDN (シーディーエヌ) is far more common than the full phrase. Use the abbreviation unless you need to be very formal or explanatory.
A slightly more Japanese rendering using 配信 (distribution). Less common than the full loanword but still understood.
コンテンツ配信ネットワークの仕組みを説明します。
I will explain how a content delivery network works.