Caching in HTTP – Part 1

added by sankarsan
5/30/2010 2:39:35 AM


A Web Cache stores copies of web resources(html/images etc.) returned by the requests that pass through it and next time onwards returns the stored copy to the client instead of forwarding the same request to the server.This helps to improve the speed of content delivery, reduce bandwidth usage and processing load on the servers.Caching as a concept is nothing new and can be seen in many other areas of software and hardware technologies as well.In this post we will discuss about what all options HTTP as a protocol provides to control and manipulate the caching of web resources.