Content Delivery Network (CDN)

Visualize how CDNs reduce latency by serving content from edge locations closer to users, with real-time cache behavior and performance metrics.

CDN Simulator

Visualize how CDNs reduce latency by serving content from edge locations

Content Type

Traffic

TTL60s

Cache

Origin Server

US East

US West

Europe

Asia

South America

Performance Metrics

Avg Latency

0ms

Hit Rate

0.0%

Origin QPS

0.0

Bandwidth

0.0 MB/s

Request Statistics

Total Requests0

Edge Hits0

Edge Misses0

Dynamic (Origin)0

Cached Items0

Legend

Cache Hit (Fast)

Cache Miss (Edge → Origin)

Dynamic (Direct to Origin)

System Design Insight

CDNs reduce latency by bringing content closer to users. When a user requests static content, the CDN edge server checks its cache. A cache hit serves content in ~20-50ms, while acache miss requires fetching from the origin server (~100-300ms). Dynamic content always bypasses the cache and goes directly to the origin. TTL (Time-To-Live) controls how long content stays cached, balancing freshness with performance.

Detailed explanation about Content Delivery Network (CDN) goes here. This section would explain the algorithms, trade-offs, and real-world use cases.