Load-balacing

Learn how DNS load balancing and high availability techniques like round-robin DNS, geographically distributed servers, anycast routing, and CDNs keep websites fast, reliable, and always available for users worldwide.

When designing scalable systems, one of the most critical decisions you'll face is how to distribute traffic across your servers. Two core models are widely used, stateless and stateful load balancing.

In today's always-on digital world, downtime is unacceptable. Whether you're running a SaaS platform, an e-commerce site, or an enterprise application, ensuring high availability (HA) and fault tolerance for your infrastructure—especially your load balancers—is non-negotiable.

Load balancers are critical for modern web applications. They help distribute incoming traffic across multiple servers, improve performance, and ensure high availability. However, like any technology, load balancers can present challenges if not implemented correctly.

Load balancing might sound technical, but at its core, it's about being smart with traffic. Whether you're building a small app or designing a large-scale system, adding a load balancer ensures your app can handle growth and users smoothly.