#high-scale-systems

Articles tagged with #high-scale-systems

The Hidden Distributed System Behind YouTube’s “Continue Watching” Button 🎬⚙️
How YouTube saves your playback progress, syncs it across devices, and makes one tiny timestamp feel like magic
Sep 12, 202610 min read11
How Does Gmail Know a Username Is Already Taken in Milliseconds?
The system-design concepts behind username availability checks, database indexing, caching, APIs, and low-latency distributed systems
Sep 4, 202610 min read5