⏱ 7 min read Google Maps serves over 1 billion monthly active users with real-time navigation, traffic data, satellite imagery, and location search. Designing Read article

⏱ 7 min read DNS (Domain Name System) is the internet phone book — translating human-readable domain names into IP addresses. Every web request Read article

⏱ 7 min read YouTube is the second largest search engine in the world, serving over 1 billion hours of video daily to 2+ Read article

⏱ 8 min read When a production system is slow or unresponsive, you need to quickly identify the bottleneck: is it CPU, memory, disk Read article

⏱ 6 min read Counting things at scale — page views, likes, inventory levels, active users — is surprisingly hard in distributed systems. A Read article

⏱ 7 min read Kubernetes networking is one of the most complex and frequently misunderstood aspects of container orchestration. Every pod gets an IP, Read article

⏱ 7 min read Memcached is a high-performance, distributed memory caching system used by Facebook, Twitter, and Wikipedia to reduce database load and accelerate Read article

⏱ 7 min read PostgreSQL is the most popular open-source relational database, powering applications from startups to enterprises. Understanding its internals — how MVCC Read article

⏱ 7 min read A Content Delivery Network caches content at servers distributed across the globe, serving users from the nearest location. CDNs reduce Read article

⏱ 8 min read In a microservices architecture, maintaining data consistency across services is the hardest challenge. A single business operation (placing an order) Read article