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Topic 81 of 109: web robots

Sat, Apr 6, 2002 (07:22) | Paul Terry Walhus (terry)
A robot is a program that automatically traverses the Web's hypertext structure by retrieving a document, and recursively retrieving all documents that are referenced.
Note that "recursive" here doesn't limit the definition to any specific traversal algorithm; even if a robot applies some heuristic to the selection and order of documents to visit and spaces out requests over a long space of time, it is still a robot.

Normal Web browsers are not robots, because the are operated by a human, and don't automatically retrieve referenced documents (other than inline images).

Web robots are sometimes referred to as Web Wanderers, Web Crawlers, or Spiders. These names are a bit misleading as they give the impression the software itself moves between sites like a virus; this not the case, a robot simply visits sites by requesting documents from them.

3 responses total.

 Topic 81 of 109 [web]: web robots
 Response 1 of 3: Paul Terry Walhus (terry) * Sat, Apr  6, 2002 (07:23) * 7 lines 
What other kinds of robots are there?
Robots can be used for a number of purposes:
HTML validation
Link validation
"What's New" monitoring

 Topic 81 of 109 [web]: web robots
 Response 2 of 3: Wolf  (wolf) * Mon, Apr 15, 2002 (21:15) * 1 lines 
i don't think i get it....i'm sure that most of us have found so many pieces of info just by doing a simple search (info like bulletin boards that mentioned the subject, PDF documents and the like)

 Topic 81 of 109 [web]: web robots
 Response 3 of 3: Paul Terry Walhus (terry) * Tue, Apr 16, 2002 (07:33) * 3 lines 
This is something that can help stock our site with more content.

It's not only more, it's how we organize what we have. I did a site redesign the other day an I'm trying to make our content more accessible.

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