How Search Engines Work

One of the facts about search engines is that they utilize software programs known as bots or spiders that crawl the web and build their database. These spiders are sent to view and index pages which are later processed and retrieved from the database. If ranking on top of the search engine results pages (SERPs) is crucial for you, then it is important you understand the basics of creating a search engine friendly website. These spiders crawl through a site and look at the content (mainly text) to know what the site is about and then start collecting, parsing and storing the data so that it can be easily be retrieved from its database.

It is also good to know that search engines are mainly text driven and are oblivious to images, sounds, flash movies, java script, frames, directories, and similar stuff. Therefore having lots of these on your website may not be very helpful from the SEO point of view as these will not be crawled and indexed for further processing. This process entails finding those words that can best describe the webpage content and then assigning the webpage to specific keywords. The indexed page is then stored in the huge database for retrieval later.

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