Edge Network
ELI5 — The Vibe Check
An edge network is a constellation of servers placed as close to end users as possible — in major cities worldwide. Instead of your request traveling from Tokyo to Virginia, it hits a server in Tokyo. The 'edge' is the edge of the network, closest to you. CDNs are edge networks, and now compute runs there too.
Real Talk
An edge network consists of distributed points of presence (PoPs) located in close proximity to end users. It moves computation and content storage from centralized data centers to the network edge, reducing latency and bandwidth costs. Modern edge networks support not just content caching but also compute (edge functions), databases, and key-value stores.
When You'll Hear This
"Our edge network serves users from 200+ locations worldwide." / "Moving auth to the edge network cut login latency by 80%."
Related Terms
CDN (Content Delivery Network)
A CDN is a network of servers spread around the world that store copies of your files.
Cloudflare
Cloudflare is like a superhero shield in front of your website.
Edge Computing
Your server is in Virginia. Your user is in Tokyo. Every request travels 10,000 km and back.
Latency
Latency is the delay before data starts moving — the time it takes for a request to go from your device to the server and back.
Points of Presence (PoPs)
Points of Presence are the physical locations where a network has servers — data centers, co-location facilities, internet exchange points.