Adding WebAccelerator to the network infrastructure offers several benefits. Firstly, it speeds up a secure Web site by optimizing the delivery of content, which helps in faster load times for users. Secondly, it reduces the need to purchase additional bandwidth because it can cache frequently accessed content and thereby decrease the overall data transfer requirements. Finally, it analyzes Web content, and caches and compresses it accordingly, which reduces latency and improves the efficiency of content delivery across the network.