Search Engine Optimization (SEO) is often considered the more technical part of Web marketing. SEO is sometimes also called SEO copyrighting because most of the techniques that are used to promote sites in search engines deal with text. Generally, SEO can be defined as the activity of optimizing Web pages or whole sites in order to make them more search engine-friendly, thus getting higher positions in search results.
Although SEO helps to increase the traffic to one’s site, SEO is not advertising. Even if you plan to do some basic SEO, it is essential that you understand how search engines work and which items are most important in SEO.
How Search Engines Work
The first basic truth you need to learn about search engine optimization SEO is that search engines are not humans. While this might be obvious for everybody, the differences between how humans and search engines view web pages aren’t. Unlike humans, search engines are text-driven. This brief explanation is not the most precise because as we will see next, search engines perform several activities in order to deliver search results crawling, indexing, processing, calculating relevancy, and retrieving.
First, search engines crawl the Web to see what is there.
When a search request comes, the search engine processes it i.e. it compares the search string in the search request with the indexed pages in the database. Since it is likely that more than one page (practically it is millions of pages) contains the search string, the search engine starts calculating the relevancy of each of the pages in its index to the search string.
The last step in search engines’ activity is retrieving the results.
For different search engines different factors are important. There are many examples of the differences between search engines. For instance, for Yahoo! and MSN, on-page keyword factors are of primary importance, while for Google links are very, very important. Also, for Google sites are like wine the older, the better, while Yahoo! generally has no expressed preference towards sites and domains with tradition (i.e. older ones). Thus you might need more time till your site gets mature to be admitted to the top in Google, than in Yahoo!






