rankings. This is done using a two-step process. The first is to use industry information that allows professional optimizers to understand what these robots are looking for. This is a complex process because a Web site's placement within a spider driven search engine is derived from hundreds of variables such as link popularity, click popularity, keyword density, Web site themes and more. The second way SEO professionals optimize sites is to eliminate/reduce on-site techniques that can impede the search engine spidering process.

The topics mentioned below could either block search engine spiders form crawling your site accurately or ultimately get your site penalized in certain engines and/or directories. Take these into serious consideration when designing and/or optimizing your website.