What is a WebSpider
A WebSpider or crawler is an automated program that follows links on websites and calls a WebRobot to handle the contents of each link.
What is a WebRobot
A WebRobot is a program that processes the content found through a link, a WebRobot can be used for indexing a page or extracting useful information based on a predefined query, common examples are - Link checkers, e-mail address extractors, multimedia extractors and update watchers.
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