Design Bit.ly || System Design || HLD By Chandrakant Sahu скачать в хорошем качестве

Design Bit.ly || System Design || HLD By Chandrakant Sahu

🔗 System Design: Designing Bit.ly - High-Level Design (HLD) Welcome to the first video in my System Design series! In this episode, we tackle a classic interview question: How to Design a URL Shortening Service like Bit.ly, TinyURL, or Rebrandly. This video focuses on the High-Level Design (HLD), outlining the core components and key decisions required to build a scalable, highly available, and reliable URL shortener. 🔑 What You Will Learn: Core Workflow: Understanding the two main operations: URL Shortening (creating the short link) and URL Redirection (mapping the short link back to the original). Key Design Considerations: Analyzing the Read-Heavy nature of the system and the need for low latency during redirection. Schema Design: The essentials of our primary database (e.g., storing the original URL, short key, user ID, creation date, etc.). Short Key Generation: Deep dive into the different strategies for generating unique short keys, including: Base62 Encoding: Converting a sequence number to a short, unique string. Hasing (MD5/SHA256): And why simple hashing is often insufficient. Unique Key Generation Services: Using a dedicated service for highly scalable key creation. Redirection Strategy: Implementing 301 (Permanent) vs. 302/307 (Temporary) redirects and the pros/cons of each. Scaling with Caching: Strategically placing Caches (like Redis) to handle the massive volume of redirect requests and ensure ultra-low latency. 🛠️ Technologies Discussed: Load Balancers Application Servers (APIs) Distributed Caching (e.g., Redis) Databases (SQL vs. NoSQL considerations) : We will be using SQL as data is structured. Whether you're preparing for a System Design Interview or just curious about how global-scale services work, this video provides a solid foundation. 📚 Resources & Inspiration This design approach and framework were heavily inspired by the excellent content from Hello Interview. Check out their system design resources here: [I update once I have YT permission] Optional : Don't forget to Like, Share, and Subscribe for more in-depth system design breakdowns!