Global-Availability

Networking Basics for Global Applications Global applications reach users across time zones, networks, and devices. The performance a user feels is often determined by the network path, not just the code. Understanding networking basics helps your app stay fast, reliable, and easy to scale. DNS, IP, routing, and bandwidth shape every user experience. Plan with these in mind: reduce round trips, choose nearby servers, and protect traffic. DNS and routing: When a user opens the app, a domain name is resolved to an IP. The choice of endpoint can depend on geography, network load, and policy. Techniques such as geolocation-based routing and Anycast direct users toward the closest data center. A Content Delivery Network (CDN) stores static content at edge locations, so the browser fetches data from the nearest edge server. ...

Database Scaling for Global Applications Global users bring latency and reliability demands. To serve people quickly, data needs to live near users, reads should be fast, and failures should not take the site down. This article offers practical ideas for scaling databases across regions. It covers data partitioning, replication, caching, and operations. Start with two paths: vertical scaling (bigger servers) and horizontal scaling (more nodes). For global apps, horizontal scaling and geo-distribution usually deliver lower latency and higher resilience. Map your data to regions and measure how reads and writes split across users, then pick a plan that fits your budget. ...