First ,you must understand what is seo?

SEO means "search engine optimization," which means to get traffic  from the “free,” “organic,” “editorial” or “natural” listings on search engines. Major search engines such as Google, Yahoo and bing such results, in which Web pages and other content such as video or local listing of display and ranking to the user based on the most relevant search engines view.

Search engine optimization for a website is very important, because a site must have traffic, visitors, you must obtain a large number of visitors to your site, so you have a chance to show the world your site large most people, you have the opportunity through your website to sell your product or other, to help you succeed. If a site does not have visitors, then this site is a dead site, without any meaning.

that is :provide something people need and are looking for and share your site with other great sites and you’ll quickly start to see your website traffic increase

In most cases, users do not have much use browser favorites or bookmarks list provides little direct input system and the page you want to go to URL, because he may not know it.

Web site positioning strategy is essential. On the other hand has reached less than 40% of Internet users search results after the second page, provide a search engine, only 10% of the examination the third. This is a very clear need to achieve visibility and to achieve this goal, we need a search engine that, in order to better communicate with them.

Important is that in SEO. SEO is "search engine optimization

SEO can get high rank in search engine link google yahoo and bing. if your site in the first rank of the search engine. the you will get a lot fo traffic..your site is successful.

now . how to seo for site , that is important and what we must do.?

you have to study more about seo.

Many factors affect SEO, you can learn online SEO knowledge.

If you do not, you can seek help, there are many professional firms providing SEO Consulting Services, you put your site to them, they will help you do to improve your site’s ranking in search engines to improve your site traffic.

They will help your website succeed