Flow control is applied to increasing the performance of a browser while pre-fetching Web objects while operating over bandwidth constrained links to increase the level of concurrency, thus reducing contention for limited bandwidth resources with increased levels of concurrency. Using an agent or a gateway to speed up its Internet transactions over bandwidth constrained connections to source servers. Assisting a browser in the fetching of objects in such a way that an object is ready and available locally before the browser requires it, without suffering congestion on any bandwidth constrained link. Providing seemingly instantaneous availability of objects to a browser enabling it to complete processing the object to request the next object without much wait.