Because of the enormous competition from websites for user attention, it is vital to have the best exposure to attract your audience. Although there are over 3000 search engines, 95% of the business in the US comes from only 4 search engines (Google, Yahoo!, AOL & MSN). The search engine rating game is subtle and complicated. Each search engines has different rating criteria. (Criteria that are constantly changing.) Search engines check six principles when deciding how high to rate a site. Your ability to gain high ratings for your site depends on creating your site to rate well in those six criteria.
The six main search engine criteria are:
WEB PAGE TITLE
The title is extremely important. Located in your web page header, the purpose of your title tag is to clearly communicate the content of the page to the user. Since users most likely view your page out of context, you should try to provide context-rich titles.