ReviseAlgo Logo

Chapter I: Networking & Web Fundamentals

Content Delivery Network (CDN)

Geographically distributed edge servers that deliver content close to users.

In short

A CDN is a network of edge servers that caches content close to users to cut latency and origin load.

Loading diagram…

Key takeaways

  • Edge servers cut latency by serving content near users.
  • Pull CDNs auto-fetch from origin; push CDNs are manually populated.