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.
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.
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 balancing isn't just about "sharing traffic" — it's about **making systems faster, safer, scalable, and cost-effective**. From tech giants to small businesses, it plays a silent but critical role in every online experience we enjoy today.