Problem: Design a Tiny URL / Bit.ly competitor Given a long URL, create a short URL. Given a short URL, redirect to a long URL. Requirements * Very high read, likely 80% of all links are the same 20% of links * Not so much write * Needs low latency * High availabilitiy Flow

1. Distributed Metrics Logging & Aggregation System Companies: Google, Facebook, Amazon, eBay, Datadog, Atlassian 2. Distributed Stream Processing System (like Kafka) Companies: Amazon, Microsoft, Wise, Confluent 3. Key-Value Store Companies: Apple, Google, Canva, Avalara, Rubrik, OpenDoor 4. K Most Shared Articles in Time Windows (24h, 1h, 5m) Companies: LinkedIn, Facebook,