Web cache

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Web cache

(1) A folder full of Web pages in the user's computer that is maintained by the Web browser for a period of time. If the local, cached page has not been updated on the Web, it is retrieved immediately by the browser, saving download time.

(2) A computer system in a network that keeps copies of the most-recently requested Web pages in memory or on disk in order to speed up retrieval. If the next page requested has already been stored in the cache, it is retrieved locally rather than from the Internet. Web caching servers (or caching servers or cache servers) sit inside the company's firewall and enable all popular pages retrieved by users to be instantly available. Since the content of Web pages can change, the caching software is always checking for newer versions of the page and downloading them. Pages will be deleted from the cache after a set amount of non-activity. See browser cache, proxy cache, transparent cache. See also Akamai.


Caching Appliance
Holding up to 2TB of Web pages, this NetCache model is called a "caching appliance," because it plugs into the network and does only Web caching. (Image courtesy of Network Appliance, Inc.)
References in periodicals archive ?
Using this new technology, CinTel expects to announce a new product that includes a web caching solution and content filtering proxy solution as early as the fourth quarter of this year.
ISA Server 2004 is the company's combined application layer firewall, virtual private networking, and web caching software.
50), Duane Wessels explains the theory and benefits of web caching.
By focusing on the emerging need for a dedicated Web caching tier, Gear6 solutions dramatically improve the scalability of web applications and databases, while improving quality of service and reducing infrastructure cost.
A Merrill Lynch report highlights Network Appliances as a market leader on price and performance in the network-attached appliance and nascent web caching market.
Web Cache Objects Storage (WCOS) - Exclusive file system designed specifically for Web caching to solve disk bottlenecks by allowing parallel disk access and processing while optimizing RAM usage.
It claims to be almost profitable and to have a backlog of orders for its low-cost web caching appliances.
NS Series Security Appliances are a family of multi-function security platforms providing an advanced application-layer firewall, VPN, and web cache capabilities to maximize protection for core Microsoft applications including Web Caching, Exchange Server, SharePoint(R) Portal Server, and Internet Information Services (IIS).
It is a scalable, multi-function security appliance platform that eases considerable pain points because Network Engines has created easily deployable solutions which integrate application-layer firewall, VPN, and web caching services, powered by Microsoft ISA Server Enterprise Edition, with web content, anti-virus, and anti-spyware filters," said Charles Kolodgy, Research Director at IDC.
New product vision meets critical branch office need by expanding wide area file services to include centrally managed print, email, Web caching and other functions on a single appliance
In addition, advanced VPN and web caching functionality are built in and can be used to help secure and control the flow of business-critical communications.
MSA Product Line Delivers Combination of Perimeter Security, Branch Office Connectivity and Web Caching in Easy to Use Appliances