Think of them as the “local branches” of the internet that handle requests before they ever reach the origin server.

Key characteristics of edge nodes

1. Geographically distributed
   • There are thousands of Akamai edge nodes worldwide, located in ISPs, data centers, and major internet hubs.
   • The closer a node is to a user, the faster it can serve content.
2. Caching content
   • Stores static files like images, videos, or web pages to avoid repeated requests to the origin server.
3. Running edge logic
   • Some nodes can execute code (e.g., using Akamai EdgeWorkers) for personalization, authentication, or other tasks at the edge.
4. Security enforcement
   • Edge nodes can inspect traffic and block malicious requests (DDoS protection, bot mitigation, WAF rules) before they reach your server.
5. Intelligent routing
   • Edge nodes direct traffic to the fastest or most available path, balancing loads across the network.

How edge nodes fit into the Akamai Intelligent Edge Platform

• The platform is the network + software + analytics.
• The edge nodes are the physical servers that carry out the platform’s functions:
  • Delivering content
  • Securing traffic
  • Running edge computing tasks
  • Optimizing performance