Overview

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F1: Nanoid Slug Generation

F2: Atomic Redirection

F3: Custom Vanity Alias

F4: JWT Cookie Auth

F5: TanStack & Redux

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System Design

System Design Index

14.1 Requirements & Capacity

14.2 Architecture Styles

14.3 Networking & Edge CDN

14.4 Load Balancing & Scaling

14.5 Databases & Storage

14.6 Caching Strategies

14.7 Messaging & Queues

14.8 Concurrency & Consistency

14.9 Reliability & Resilience

14.10 API Design & Limiting

14.11 Security Architecture

14.12 Real-Time Aggregation

14.13 Real-Time Systems

14.14 Observability & Ops

14.15 Performance Engineering

14.16 Cost & Trade-offs

14.17 Classic System Design

Decisions Log

Interview & Readiness

Interview Q&A (150+)

Gaps & Improvements

Technical Glossary

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System Design Deep Dive: Distributed URL Shortener

Comprehensive architectural breakdowns covering capacity estimation, caching, scaling, security, and resilience.

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System Design Deep Dive: Distributed URL Shortener ​

System Design Deep Dive: Distributed URL Shortener