Chapter 4 — CDN & Edge Caching
Purpose
[stub: cdn-and-edge-caching]
Metadata
| Author | Amit Singh |
| Scope | system-design |
Local graph
Linked from 2 notes
5 — CDN
Edge nodes, cache invalidation, Cache-Control, and origin shield as the mechanics behind a CDN's performance and cost story.
System Design
Principal/Staff-level system design reference collection for MAANG interview preparation — observability pipelines, distributed systems, reliability engineering, and beyond.
Related notes
Chapter 3 — Load Balancing
L4 vs. L7 load balancing, anycast routing, and global load balancing as the layer that decides which failures are invisible to callers.
Chapter 1 — Network Fundamentals
TCP, UDP, QUIC, and the HTTP/1.1 to HTTP/2 to HTTP/3 evolution, and which transport trade-off each protocol is actually optimizing for.
Chapter 2 — RPC: REST, GraphQL, gRPC
The trade-offs between REST, GraphQL, gRPC, and ConnectRPC for service-to-service and client-facing APIs at scale.
Chapter 4 — Alerting Systems
Multi-window burn-rate alerts, recording rules, routing, and deduplication as the difference between an actionable page and noise.