A Review on - Recent Web Pre-Fetching and Caching Technique

Due to the fast development of internet services and a huge amount of network traffic web caching and prefetching are the most popular techniques that play a key role in improving the Web performance by keeping web url that are likely to be visited in the near future closer to the client. Web caching technique work integrated or independently with the web prefetching. The Web caching and prefetching techniques are complement each other since the web caching exploits the temporal locality for predicting revisiting requested url, while the web prefetching utilizes the spatial locality for predicting next related web object of the requested Web url. This paper survey principles and some existing web caching and prefetching approaches. The intelligent and conventional web caching techniques are investigated and discussed. Furthermore, Web prefetching techniques are summarized and classified with comparison limitations of these approaches. This paper also discusses some studies that take into consideration impact of integrating both web caching and web prefetching jointly. This paper explain about the various prefetching and caching techniques, how these technique predict the web object to be pre-fetched and what are the issues challenges involved when these techniques are applied.