Monday, November 28, 2011

How Search Engines Work

Do you know how search engines work? The first basic truth you need to know about seo is to learn that SEO are not humans. While this maybe might be obvious for everybody, the differences between how humans and search engines like google view web pages aren't. Unlike humans search engines are text-driven to webpages. Although technology advances rapidly, also search engines are far from intelligent creatures that can feel the beauty of a cool design or enjoy the sounds and movement in great movies. Instead, search engines crawl the webmaround the world, looking at particular site items "mainly text" to get an idea what a site is about. This brief explanation is not the most precise because as we will see next, search engines perform several activities in order to deliver quality search results that matters – crawling, indexing, processing, calculating relevancy, and retrieving all this data.

First step, search engines (like google) crawl the web to see what is there for data. This task is performed by a piece of software, called a crawler or googlebot, as is the case with Google. Spiders are follow all links from one page to another and index everything they find on their way in the world wide web. Having in mind the number of pages on the web (over 50 billion), it 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 done some modifications, sometimes crawlers may not end up visiting your site for a month or two if there is no new data to crawl.

What you can do for better ranging of your website is to check what a crawler sees from your site. As already mentioned, crawlers are not humans and they do not see images or other things like flash movies, JavaScript, frames, password-protected pages and directories. If they are not viewable, they will not be spidered and also not indexed in the search engine, and ranking.

All seo steps are very imprtant, so be aware of what you are doing when you creat a new website.

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