Internet and Technology | Computers and Technology | * Written by Ankit kumar | Wednesday, 25 July 2012 01:31 | Word Count: 442
Search engines are text-driven, they crawl the web looking at different aspects of the website (mainly text) to get an overview as to what the site is about. They do however, perform task other than crawling which can include indexing, processing, calculating relevancy and retrieving.
According to Website Design Melbourne The first thing a search engine would do would be to crawl the web; this task is performed by called a crawler or spider. The spiders follow links to and from different pages and index everything they discover on their way. Crawlers, however, do not see images flash movies, JavaScript, frames, password protected pages, etc. If something is not viewable, they will not be crawled, indexed, processed, etc. In other words, they will be non-existent for a search engine. The large amount of pages on the web make it impossible for a crawler to visit a site daily to see any new additions, modifications or subtractions that is why crawlers don't visit a specific site for up to a few months.
Web Design Melbourne have found that After crawling the web, a search engine will index the content found on websites, all this data is stored away in large database from it can later be recollected. The process of indexing is simply to distinguish the words and expressions that best describe the site and allocating the site to particular keywords.
Later on when somebody enters a search query into search engine processes it- i.e. it compares the key words in the search request to those stored in the database, as they are many pages which will have the same keywords, the search engine calculates the relevancy of each page. The search engine then retrieves the result; simply shows the pages in order of most relevancies to least relevancy. SEO Melbourne says that the higher a website ranks in the search results, the more chance of it earning visitors and earning money.
The search engines determine the relevancy of a page depends on whether they are 'authority pages', this involves writing content and building links. So to conclude, SEO involves writing pages that use keywords and securing links from other sites to show how important a site is compared to another one.
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For more information related to Website Design Melbourne, Web design Company, SEO Company Melbourne, please visit http://seoxperts.com.au/wdd/.
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