| A Search Engine Explanation |
| Invention Development Advice - Internet Marketing | |||
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A search engine is a device that delivers contents to you as per your query from the World Wide Web. Search engine locates the suitable content from the plethora of information available on WWW in form of links, images and web pages. These engines are based on complex algorithms and sometimes even on human editing.
A search engine is a device that delivers contents to you as per your query from the World Wide Web. Search engine locates the suitable content from the plethora of information available on WWW in form of links, images and web pages. These engines are based on complex algorithms and sometimes even on human editing. Web crawling, indexing and searching combine in that order to obtain the most accurate results. Mass amounts of information on millions of web sites are stored and then retrieved relevant to the user's request. A web crawler is also known as a spider, it analyzes every link and indexes all information for faster retrieval. Descriptions and meta tags are analyzed to determine the type of webpage and its purpose. The meta tags are behind the scenes in the webpage and the viewer never sees them while browsing the page. The search engine uses them as a quick scan to get the idea or theme of the page and then the entire contents of the webpage will be evaluated to ensure the tags are correct and the page is valid. The major search engines, such as Google amass all, or a miniature portion of the source page, or "cache", in addition to information the web page offers. The search engine, AltaVista stores every word from every page. Storing the cache helps the search engine filter more easily because web pages are updated constantly. Google's technique of indexing relieves the "linkrot" and allows users to be sure that the content they find in their search results will be up to date and utilizable. The cache can be helpful when obsolete information is removed. The cache allows users to find and recover information from archived sources. Search engine users normally input a keyword or key phrase into the search field. The engine will search for their particular keyword and key phrase on the World Wide Web. The search engine index will provide an organized list of results with the best matched web pages. A short summary of each webpage describing the contents is provided along with the list. Many filters and specialized web crawlers create a proprietary method for analyzing web pages for results. While a keyword can be found a very large amount of websites not all sites are relevant to the users purpose and companies pride themselves on result relevancy. Increasingly search engines have been implementing a page ranking system in which each page's descriptions, keywords and content are scanned for relevancy to the inputted keyword and their index. Pages with higher ranks get seen more often at the top of the list. If a site is linked to a high ranking website that site receives a vote that increases its ranking. More information: Justin Harrison is an internationally recognised Internet Marketing expert who provides world class Search Engine Optimization to website owners. For more information visit: http://www.seorankings.co.za
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