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WWW

world wide web

QuestionAnswer
Who invented WWW Tim Berner Lee...a british scientist
when was www created 1989
What are 3 main parts of Search engines? Spiders (crawlers) ...Indexing (Efficient retivel).....Ranks/Display
Spider Tracks down web pages having relavent keywords... Example: Googlebot Google's robot Program
index database containing a copy of each webpage as tracked down by the spider
SES search engine software Technologies that enables users to query the internet....returns the result in schematic order
Web crawlers software agents...traverse the Web sending new or updated pages to a main server where they are indexed
first web crawler Wanderer...developed in 1993
PageRank alogrithm is used by: WebQuery and Google
Google uses citation graph 518 million links
How much google computes in hours 26 million pgs
typical use of search engine 1- User types data (word) 2- Engine finds web pages containing that word 3- engine lists the pgs in an order (most to least interesting)
Ranking alogrithm " Ordering of search results by relevance is called ranking." ` The process of ranking is not made public. ` It does not allow acess to text only indices are shown. ` It is hard to compare the quality of ranking between two search engines...
Fundamental strategies of SEO 1- Contetn is king 2- Build your site with good page semantics 3- Identify your keywords.
Search engine Market entails both organic and paid research.
Purpose of Search engine -Crawling and indexing -Retrieving answers
Created by: 72035_x
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