What is SEO?
Search Engine Optimization or SEO is the process of improving the visibility of a website in the organic results of search engines.
Its success lies in properly handle three fundamental aspects of the process, the indexability, relevance and authority.
Search engines have programs or robots that «read» websites and analyze their content. These programs are called spiders or crawlers bots. Downloading content of the website and try to understand the content. For Google when you downloaded it saved in the main database (google’s master database) or also known as the Google index. In the case of websites built in Flash the robot will not be able to understand the words of the site, so you can not store the content in the index. So this site will not be available in searches and therefore will not be in the organic results. From this follows the second feature called relevance
When you perform a search query on Google on an analysis of all the websites that have stored ei ndexado Internet to provide users investigator also some suggestions in a list of web sites. To display this list the search will consider certain characteristics or signals to determine if the site content is relevant to the search.
Having determined the relevancy the next step to be performed by the search engine is to assign an authority. What is the authority of a website in terms of SEO?. It is the process that performs the search for an order assigning the website and show the results to the user researcher. This is because there may be thousands of websites with relevant content, but it is necessary to take into account other aspects to assign an order.
What are these issues?
The authority of the site is calculated taking into account the number of inbound links, age of domain, the amount of relevant content. However the most important factor is the quantity and quality of a large number of incoming links. A link to the website adds one more to the count.