A URL shortener service converts long URLs into shorter, unique aliases that redirect to the original URLs, useful for cleaner links on social media. The design involves high availability, low latency, scalability for millions of requests, and security measures. Key components include load balancers, application servers, a URL generation service, a redirection service, and a database. Capacity and storage estimations outline the service’s infrastructure needs. Various strategies for URL generation, custom aliasing, link expiration, and analytics tracking are discussed. Important considerations for scalability, availability, edge cases, and security are addressed.
Table of contents
1. Requirements Gathering2. Capacity Estimation3. High Level Design4. Database Design5. System API Design6. Diving Deep into Key Components7. Addressing Key Issues and BottlenecksSort: