Wednesday, November 21, 2007

Common search engine principles

  • To understand seo you need to be aware of the architecture of search engines. They all contain the following main components:
  • Spider - a browser-like program that downloads web pages and does not have any visual components and works directly with the underlying HTML code of the page.
  • Crawler - This program finds all links on each page.
  • Indexer - This component parses each page and analyzes the various elements, such as text, headers, structural or stylistic features, special HTML tags, etc
  • Results Engine - extracts search results from the database. It determines which pages best match a user's query and in what order the pages should be listed
  • Web server - a server that is responsible for interaction between the user and other search engine components.






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1 comment:

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