dcsimg
Main » TERM » I »

invisible Web

(n.) Also referred to as the deep Web, the term refers to either Web pages that cannot be indexed by a typical search engine or Web pages that a search engine purposely does not index, rendering the data "invisible" to the general user. One of the most common reasons that a Web site's content is not indexed is because of the site's use of dynamic databases, which opens the door for a potential spider trap.

Web pages can also fall into the invisible Web if there are no links leading to them, since search engine spiders typically crawl through links that lead them from one destination to another. Data on the invisible Web is not inaccessible; the information is out there-it is stored on a Web server somewhere and can be accessed using a browser-but the data must be found using means other than the general-purpose search engines, such as Google and Yahoo!.










LATEST ARTICLES
Texting & Chat Abbreviations

From A3 to ZZZ this guide lists 1,500 text message and online chat abbreviations to help you translate and understand today's texting lingo. Read More »

List of Well-Known TCP Port Numbers

Port numbers 0 to 1024 are reserved for privileged services and designated as well-known ports. This list of port numbers  are specified in... Read More »

STUDY GUIDES
Computer Architecture Study Guide

Computer architecture provides an introduction to system design basics for most computer science students. Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

The Five Generations of Computers

Learn about each of the five generations of computers and major technology developments that have led to the computing devices that we use... Read More »