Load Balancers are able to deploy HTTP Compression on web content during its journey from server to client. HTTP Compression can dramatically reduce the size of a typical web page by 70-90%.
Because decompression is handled by the client-side browser (such as Internet Explorer, Firefox or Chrome), no additional plug-in is required, meaning deployment is transparent to users. As well as enhancing delivery, compression reduces bandwidth costs and alleviates burdens on networking infrastructure.
TCP Connection Management
Load Balancers are able to optimise the performance of TCP / IP by opening, maintaining and reusing multiple connections to web servers. This reduces unnecessary TCP connections and the effects sometimes referred to TCP / IP slow start.
Content Caching is an advanced load balancer feature whereby frequently requested static and dynamic HTTP objects are stored and served from the load balancer as opposed to the web server. This performance enhancing feature means that only unique requests are sent to the web server, thus reducing the number of object requests and connections needed.