URL Shortener / Link Analytics (Go, Redis, PostgreSQL, React, Docker) overview

A high-performance URL shortening service with comprehensive click analytics, custom branded domains, and deep link routing. Go handles redirect resolution with sub-millisecond latency using Redis as the primary lookup store for active short URLs. PostgreSQL stores the full URL mapping database, click event streams partitioned by date, and aggregate analytics with geographic and device breakdowns. React powers the dashboard with real-time click counters, geographic heatmaps, referrer analysis, and UTM parameter tracking. Docker containers enable global deployment across edge locations for low redirect latency. Background Go workers process click events from Redis streams into PostgreSQL analytics tables. The tradeoff is maintaining redirect latency under load and the storage cost of granular click-level analytics at scale.