Quick definition · 2 min Internet & web term
CDN
A CDN (content delivery network) stores copies of your site around the world so it loads fast for everyone.
Think of it like
Local warehouses for a shop. Instead of shipping from one country, the nearest warehouse delivers, so it arrives faster.
Example
A visitor in Tokyo gets your images from a nearby CDN server, not from one slow server an ocean away.
Why it matters
CDNs are why big sites feel instant worldwide. The term comes up constantly in hosting and performance.
Where you’ll see it
CloudflareFastlyVercel