Search Engine's work ?

[Vamp1re]

how does search engine work anybody knows?

[webcreations]

Search engines are the key to finding specific information on the vast expanse of the World Wide Web. Without sophisticated search engines, it would be virtually impossible to locate anything on the Web without knowing a specific URL.There are basically three types of search engines: Those that are powered by robots (called crawlers; ants or spiders) and those that are powered by human submissions; and those that are a hybrid of the two.Crawler-based search engines are those that use automated software agents (called crawlers) that visit a Web site, read the information on the actual site, read the site's meta tags and also follow the links that the site connects to performing indexing on all linked Web sites as well. when you query a search engine to locate information, you're actually searching through the index that the search engine has created —you are not actually searching the Web. These indices are giant databases of information that is collected and stored and subsequently searched. This explains why sometimes a search on a commercial search engine, such as Yahoo! or Google, will return results that are, in fact, dead links. Since the search results are based on the index, if the index hasn't been updated since a Web page became invalid the search engine treats the page as still an active link even though it no longer is. It will remain that way until the index is updated.
Spider trap:A condition of dynamic Web sites in which a search engine’s spider becomes trapped in an endless loop of code.
Key Terms To Understanding Web Search Engines
Search engine:A program that searches documents for specified keywords and returns a list of the documents where the keywords were found.
Meta tag:A special HTML tag that provides information about a Web page.
Deep link:A hyperlink either on a Web page or in the results of a search engine query to a page on a Web site other than the site’s home page.
Robot:A program that runs automatically without human intervention.

[Markyarnell08]

Most search engines base their indexing through links and visitor traffic. That's why there's such thing as SEO to help your site get the highest SERP postions so that it will easily get noticed by prospects first hand.

[blessy_smith]

Search engines are basically computer algorithms which help users find the specific information they’re looking for. With literally trillions of pages of information online, without effective search engines, finding anything on the Internet would be almost impossible. Different search engines work in different specific ways, but they all utilize the same basic principles

[innovativeweb]

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[gurusoundz12]

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