Search Engine Optimization or SEO is an internet marketing technique that brings important efficiency and targeted traffic to your website. In different way, it is a process of attaining higher rank in major search engines (Google, Yahoo, Bing) with some picky keywords. Internet marketing is nowadays is on the improvement and is a very important feature of online marketing.
Search Engines uses software called robots or spiders, which collects information and obtain it back to be analyzed at the main central database or Search Engine Index that provisions all the information. This method in which the search engine spiders collect this data called crawling.