Each search engine has its own distinguishing features system to determine which web sites meet their requirements and therefore obtain the higher natural listing positions for a given theirs Keyword or keyword phrase in a user search query. Some search Engines are using old algorithm and some new techniques.

There are a large number of SEO Techniques for on-page optimization that are considered in the search engine evaluation process. These factors include but are not limited to: words in the web page url, title tag, meta tags, headlines, sub headlines, keyword density, words at the starting of the page, page content, words that are bold, words in the links, site navigation, the Website structure of links and a number of other considerations. You want to make certain that you do not over optimize your web site and have the search engines consider your site spammy.