A Load Balancer is a device or software that helps distribute incoming network traffic across multiple servers. This ensures that no single server becomes overwhelmed with too many requests, which can lead to slow performance or crashes. By balancing the load, it improves the overall responsiveness and availability of applications, making them more reliable for users. In addition to enhancing performance, a Load Balancer can also provide redundancy. If one server fails, the load balancer can redirect traffic to other operational servers, ensuring that users continue to have access to the service. This is especially important for businesses that rely on constant uptime and smooth user experiences.