HARD

Netflix Content Delivery

Design CDN for distributing video to 200M users globally with minimal latency.

Estimated Time: 120 minutes
#cdn#video#streaming#scale

Solution Overview

CDN uses edge servers deployed globally. Smart routing directs users to nearest nodes. Cache hierarchies with parent-child relationships optimize delivery. Purge APIs enable instant cache invalidation across nodes.

Architecture Pattern

Geographically distributed servers with smart routing

Key Concepts

Geographic RoutingCache InvalidationParent-Child CachingReplicationGeo-awareness

Used By Companies

CloudflareAkamaiAWS

Learn Implementation Details

Explore a complete guide for building this system from scratch with step-by-step tutorials:

Solution Overview

CDN uses edge servers deployed globally. Smart routing directs users to nearest nodes. Cache hierarchies with parent-child relationships optimize delivery. Purge APIs enable instant cache invalidation across nodes.

Companies
  • Cloudflare
  • Akamai
  • AWS
Key Concepts
  • Geographic Routing
  • Cache Invalidation
  • Parent-Child Caching
  • Replication
  • Geo-awareness
Implementation Url

https://github.com/codecrafters-io/build-your-own-x#uncategorized