WebLi Data Caching service is HTTP base data cache system. HTTP is typically used for distributed information systems, where performance can be improved by the use of response caches. WebLi cache (or HTTP cache) is an information technology for the data storage (caching) of web documents, such as HTML pages, images, videos, Games and to reduce bandwidth usage, server load, and perceived lag, and downloading High speed on local LAN. WebLi cache system stores copies of documents passing through it; subsequent requests may be satisfied from the cache if certain conditions are met. WebLi cache system can refer either to an appliance, or to a computer program. The HTTP/1.1 protocol includes a number of elements intended to make caching work as well as possible. Because these elements are inextricable from other aspects of the protocol, and because they interact with each other, it is useful to describe the basic caching design of HTTP separately from the detailed descriptions of methods, headers, response codes, etc.
Caching would be useless if it did not significantly improve performance. The goal of caching in HTTP/1.1 is to eliminate the need to send requests in many cases, and to eliminate the need to send full responses in many other cases. The former reduces the number of network round-trips required for many operations; we use an "expiration" mechanism for this purpose. The latter reduces network bandwidth requirements; we use a "validation" mechanism for this purpose.
WebLi Data Caching accelerates and controls traffic from increasingly popular video sharing web sites YouTube, Rapid Share, Mega Upload, Bit Torrent, Myspace, Facebook and others. This function is implemented in PeerApp’s UltraBand family and supports caching for FLV, SWF, MPG, MGEG and WMV file types. The solution does not require proxy servers, “super-peers,” or any changes in client configuration. High speed downloading, UltraBand Data Caching software addresses both video streams and large file downloads with a WebLi Caching Service.