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SEO: Search Engine Optimization ..How it works?

SEO: The term Search Engine Optimization SEO is still an unknown one to the people who are not into web-designing or are newbies in this field. This article will brief you about the basics of Search Engine Optimization and would let you know how it works.

Sometimes, you might wonder whenever you try to check a solution for a query on search engines like Google. User enters his query and Google provides the user with list of web links with some ordering. User always tend to pick the top most links from the links returned as he/she expects them to be close to their query. How actually this happens..This happens by the terminology of Search Engine Optimization SEO.

The first basic truth you need to know to learn SEO is that search engines are not humans.First, search engines crawl the Web to see what is there. This task is performed by a piece of software, called a crawler or a spider. Tt is impossible for a spider to visit a site daily just to see if a new page has appeared or if an existing page has been modified, sometimes crawlers may not end up visiting your site for a month or more than that. You can check working of crawler here


Search Engine Spider Simulator

Enter URL to Spider



After a page is crawled, the next step is to index its content. The indexed page is stored in a giant database, from where it can later be retrieved. Essentially, the process of indexing is identifying the words and expressions that best describe the page and assigning the page to particular keywords.  So it is the duty of web designers to make use of keywords in a better way, so that the indexing of their website provides them with an higher rank probability.

When a search request comes, the search engine processes it – i.e. it compares the search string in the search request with the indexed pages in the database. Since it is likely that more than one page (practically it is millions of pages) contains the search string, the search engine starts calculating the relevancy of each of the pages in its index with the search string. There are various algorithms to calculate relevancy. Each of these algorithms has different relative weights for common factors like keyword density, links, or metatags.

Hope this article was informative for all newbies in field of SEO and web designing.

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