# CDN

CEFR C1 · Noun

Source: https://englishreference.com/word/cdn
Updated: 2026-07-22

## Definition

Stands for Content Delivery Network. A group of servers in different places that work together to provide fast internet content like videos and images to users nearby.

For teachers: Abbreviation for Content Delivery Network. A geographically distributed group of servers that work together to provide fast delivery of internet content by caching data closer to the end user's location.

## Examples

- The website uses a CDN to make images load faster for everyone.
- When the video went viral, the company relied on its CDN to handle the massive spike in global traffic without crashing the main server.
- By offloading static assets to a global CDN, the developers significantly reduced latency and improved the overall user experience for their international audience.

## Usage notes

- Commonly used in technical and business contexts regarding web performance and infrastructure.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.