Load testing is a vital component of performance testing, aimed at assessing the behavior of software under increased workload to identify and eliminate bottlenecks. Unlike bug detection, load testing provides diagnostic analytics to help developers optimize system performance. The practice is essential for maintaining the reliability of well-developed sites, which may still experience downtime during traffic spikes, as exemplified by Encyclopedia Britannica's promotional campaign. Conducting load tests involves creating a dedicated test environment, determining scenarios, and measuring response times to ensure optimal performance. Popular tools such as NeoLoad, LoadView, and WebLOAD automate the process, although challenges include the need for programming skills and potential high costs depending on the number of virtual users. Despite these challenges, load testing remains crucial for ensuring application stability and scalability before deployment.