This century is called the century of web. Every person want to give his identification through web. In these purpose billions of websites created. Although all of their content is not same but purpose is same. To expose their contents to the world. But from billions of sites which you will visit?
Search engines are a very good solutions to make decision which site I may visit. The sites which remain top in search engines are the ultimate choice of maximum surfers. For this reason the sites on top get the maximum exposure. But if your website contains better content then their, and remain in lower position, you will get lesser visitors.
Due to this features webmasters are now become hyperactive to keep their sites on the top position in search engines. To do this several techniques are followed by them. These technique is search engine optimization.