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What Is CDN (Content Delivery Network)?
Updated 18 September 2026
Quick Answer
A CDN (Content Delivery Network) is a network of servers spread across different geographic locations that deliver a website's content from the server closest to each visitor, improving load speed.
CDN vs. Web Hosting — What's the Difference?
| CDN | Web Hosting | |
|---|---|---|
| What it does | Distributes content across multiple servers globally for speed | Stores your site's core files at one primary location |
Why It Matters
- It can meaningfully improve page speed for visitors far from your primary hosting location, without needing to change hosts entirely.
- Faster load times affect both visitor experience and search engine ranking.
How It Works
- A website's files (especially images and static assets) are distributed across multiple servers worldwide.
- When a visitor requests the site, content is delivered from the geographically nearest server.
- This reduces the distance data has to travel, improving load speed.
Key Takeaways
- A CDN distributes website content across servers in different locations for speed.
- It's most valuable for businesses with geographically spread-out visitors.
- Many modern platforms already include this functionality by default.
Frequently Asked Questions
Does a small business need a CDN?
It's most valuable if you have visitors spread across different geographic regions — for a purely local business, the benefit is smaller.
Do website platforms include a CDN automatically?
Many modern platforms (Shopify, Squarespace, Wix) include basic CDN functionality built in without needing separate setup.
Is a CDN expensive to set up?
Many free or low-cost CDN options exist, and it's often already included with modern hosting or website platforms.