Search Engine Optimization refers to improving the placement of your website in the organic search results of search engines such as Google, Yahoo, and Bing for selected keywords or phrases related to your business.
Before you can understand exactly what SEO is, you need a background understanding of how the search engines work and how they determine the rank of websites in their search results. You also need to understand the difference between organic search engine results and paid search engine results.
Each search engine uses a different set of criteria to determine exactly what sites are “most relevant” for each search term — these are known as the search engine ranking algorithms. The algorithms take many factors into account and in Google’s case, there are over 200 different factors that are used to determine a site’s ranking. These algorithms are changed and updated constantly, so a large part of Search Engine Optimization is keeping up to date with the important factors in the search engine ranking algorithms.
Search Engine Optimization or SEO involves making onsite changes to your website and completing offsite tasks to increase its search engine friendliness. The more the search engines “like” your website the more likely they are to rank it highly in the search results. The search engines try to determine and return the websites that will be most relevant and useful for each search completed. The more useful the results, the more people will use the search engine and the more revenue the search engine will make.